2014 춘계 총회 및 학술대회 우수논문발표상 수상자 - cheric · 2014-06-18 · the...

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http://www.ksiec.or.kr 88 공업화학 전망, 제17권 제3호, 2014 2014 춘계 총회 및 학술대회 우수논문발표상 수상자 최우수논문상 2LF-13 Iron oxyhydroxide nanoneedle decoarated hybrid polypyrrole nanoparicles for chemical nerve Gas Agent Sensing 이준섭 ·장정식 서울대학교 ([email protected] ) Multidimensional FeOOH nanoneedle-decorated hybrid polypyrrole nanoparticles (PFFs) were fabricated using dual-nozzle electrospray and heat stirring process. To decorate metal oxide nanoneedles on the polypyrrole (PPy) surface, metal oxide particle-decorated PPys (E_PPy) were fabricated as starting materials. The E_PPy particles were prepared by dual-nozzle electrospray in the NaOH contained collector solution. Multidimensional hybrid PFFs were then formed by heat stirring reaction in the aqueous metal precursor contained solutions. These hybrid PPFs were applied to nerve gas agent (DMMP) chemical sensor at room temperature with excellent sensitivity. The minimum detectable level (MDL) was as low as 0.1 ppb, which is higher than that for a chemical sensor based on hybrid materials. Keywords: electrospray, chemical sensor, polypyrrole, DMMP gas 우수논문상-구두 2LF-1 Amine-stabilization of KOH on activated carbon surface in the preparation of a selective CO2 adsorbent Adelodun Adedeji Adebukola ·조영민 경희대학교 ([email protected] ) In an effort to enhance the selective capture of CO2, heat treatment of 1 M KOH-doped activated carbon (AC) under inert (N2) and reducing (NH3) atmospheres was used. With N2 only, modified adsorbent became unstable to air upon retrieval. Therefore, stabilization by amination was employed, which also enabled further use of 2 and 4 M KOH doping. Amination-stabilized 4 M KOH-doped granular coal-based AC (N-4-G-CL) achieved the highest selectivity for CO2, as adsorption of 10% and 0.3% CO2 were significantly enhanced from 0.65 and 0.03 to 2.45 and 2.03 mmol/g respectively, with negligible reduction in the adsorption of pure CO2. Keywords: CO2 capture, KOH doping, amination, selective adsorption, surface stabilization

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http://www.ksiec.or.kr

88 공업화학 전망, 제17권 제3호, 2014

2014 춘계 총회 및 학술대회 우수논문발표상 수상자

최우수논문상

2LF-13Iron oxyhydroxide nanoneedle decoarated hybrid polypyrrole nanoparicles for chemical nerve

Gas Agent Sensing

이준섭·장정식†

서울대학교

([email protected]†)

Multidimensional FeOOH nanoneedle-decorated hybrid polypyrrole nanoparticles (PFFs) were fabricated using

dual-nozzle electrospray and heat stirring process. To decorate metal oxide nanoneedles on the polypyrrole (PPy)

surface, metal oxide particle-decorated PPys (E_PPy) were fabricated as starting materials. The E_PPy particles

were prepared by dual-nozzle electrospray in the NaOH contained collector solution. Multidimensional hybrid

PFFs were then formed by heat stirring reaction in the aqueous metal precursor contained solutions. These hybrid

PPFs were applied to nerve gas agent (DMMP) chemical sensor at room temperature with excellent sensitivity.

The minimum detectable level (MDL) was as low as 0.1 ppb, which is higher than that for a chemical sensor based

on hybrid materials.

Keywords: electrospray, chemical sensor, polypyrrole, DMMP gas

우수논문상-구두

2LF-1 Amine-stabilization of KOH on activated carbon surface in the preparation of a selective CO2 adsorbent

Adelodun Adedeji Adebukola·조영민†

경희대학교

([email protected]†)

In an effort to enhance the selective capture of CO2, heat treatment of 1 M KOH-doped activated carbon

(AC) under inert (N2) and reducing (NH3) atmospheres was used. With N2 only, modified adsorbent became

unstable to air upon retrieval. Therefore, stabilization by amination was employed, which also enabled further

use of 2 and 4 M KOH doping. Amination-stabilized 4 M KOH-doped granular coal-based AC (N-4-G-CL)

achieved the highest selectivity for CO2, as adsorption of 10% and 0.3% CO2 were significantly enhanced from

0.65 and 0.03 to 2.45 and 2.03 mmol/g respectively, with negligible reduction in the adsorption of pure CO2.

Keywords: CO2 capture, KOH doping, amination, selective adsorption, surface stabilization

KIC News, Volume 17, No. 3, 2014

KIC News, Volume 17, No. 3, 2014 89

2LF-3 Superporous thermoresponsive MFC/PNIPAm composite hydrogels by unidirectional freezing

Kantappa·이종휘†

중앙대학교

([email protected]†)

The directional freezing is a simple technique for producing aligned porous structures. The crystalline

microfibrilated cellulose (MFC), obtained by hydrolysis of bacterial cellulose used as reinforcing materials.

Superporous composite hydrogels were prepared by introducing MFC in cross-linked poly(N-isopropyl

acrylamide) (PNIPAm). Herein unidirectional freezing and in-situ photopolymerization techniques were used.

The resulting materials have both aligned micropores and temperature responsive swelling. The immobilized of

MFC reduced the swelling ratio and enhanced volume transition, whereas aligned micropores increased the

swelling ratio and reduced the elastic modulus above the LCST transition. Aligned micropores facilitated the fast

water infiltration confirmed by monitoring water contact angles with time which is beneficial for superabsorbent

applications. This combination of MFC and micropores within PNIPAm could explore new route for the

development of stimuli-responsive superporous hydrogels.

Keywords: hydrogel, PNIPAm, superporous

2LF-6 Preparation of highly reinforced pore-filling electrolyte membranes from cross-linked

benzoxazine-benzimidazole copolymers for fuel cell applications

김기현·이종찬†·김성곤·고태윤

서울대학교

([email protected]†)

pore-filling membranes have been developed for use in polymer electrolyte membrane fuel cell (PEMFC) at

high temperature (> 100 ) and low relative humidity(<50%RH) operation. The pores of a porous substrate

were filled with a polymer electrolyte, with the membrane stability being maintained by the substrate matrix.

Proton is transferred through the filling polymer electrolyte, and the porous substrate provides good

physicochemical stability at high temperature. We developed pore-filling membranes that consisted of

sulfonated poly(arylene ether sulfone)(PAES), a filling polymer electrolyte, and a porous poly(benzoxazine

-co-benzimidazole) substrate. In comparison to a pristine PAES membrane, the pore-filling membrane showed

improved dimensional stability, mechanical strength and cell performance.

Keywords: pore-filling membranes, PEMFC, PAES, porous poly(benzoxazine-co-benzimidazole) substrate

2LF-7 Effect of pH for development of PEI-modified biomass composite polysulfone fiber sorbent

김석·송명희·Wei Wei·윤영상†

전북대학교

([email protected]†)

In this work, a novel concept for the development of a polysulfone (PS)-based fiber as a high-performance

acid-tolerant adsorbent for the recovery of platinum group metals (PGMs) in acidic solution was outlined.

Polyethylenimine (PEI)-coated PS-Escherichia coli biomass composite fiber (PEI-PSBF) was prepared by

spinning biomass-PS blends in water, coated with PEI and cross-linked with glutaraldehyde. The E. coli

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90 공업화학 전망, 제17권 제3호, 2014

biomass on the fiber was executed as a functional group donor for binding PEI. PS fiber (PSF), PS-biomass

composite fiber (PSBF), and PEI-modified PSF (PEI-PSF) were also prepared and compared with PEI-PSBF.

The results of sorption experiments showed negligible sorption capacity of PSF and PEI-PSF. In contrast, the

Pt(IV) uptake of PEI-PSBF was 6.6 times higher than that of PSBF. In addition, the maximum pH for

preparation of PEI-PSBF was determined at around pH 9 and the reason for this is discussed.

Keywords: biosorption, surface modification, PEI, immobilization, biomass, polysulfone

2LF-9 Synthesis of graphene-based composites for environmental and energy applications

문건희*·최원용*,**,†

*포항공과대학교 화학공학과,**포항공과대학교 환경공학부

([email protected]†)

The rapid injection of precursors of Ag, Au, and Pd immediately after UV lamp was turned off caused the

formation of metal nanoaprticles on reduced graphene oxide (rGO) sheets since photoreduced

phosphotungstates as well as electrons stored in rGO directly reduced metal ions. Visible light irradiation

stimulated the structural change of GO itself, and this behaviour was utilized for the deposition of metal

nanoparticles on GO.

The rGO hybridized with TiO2 was prepared as a low-cost alternative to Pt and a highly enhanced activity for

the photocatalytic oxidation of As(III) was accomplished, which is comparable to that of Pt/TiO2. Also, TiO2

hybridized with rGO as a cocatalyst resulted in highly-enhanced photocatalytic generation of hydrogen peroxide

even comparable to noble metals (Au, Ag, and Pt) loaded on TiO2 (M/TiO2). In the presence of phosphate, the

formation of hydrogen peroxide significantly increased due to the stabilization of the TiO2 surface whose

passivation layer effectively inhibited the decomposition of hydrogen peroxide.

Keywords: graphene, photocatalysis, metal nanoparticles, TiO2, composites

2LF-11 Synthesis of Ni/YSZ core-shell for SOFC anode by adding surfactant and Improved

performance according to the structure

이민진*,**·최병현*,†·홍선기*·강영진*·황해진**·지미정*

*KICET,**Inha Univ.

([email protected]†)

SOFC 연료극이 균일한 미세구조를 갖게 하여 장기작동에 따른 열화를 방지하고 전기적 특성을 향상시키고자

Ni/YSZ core-shell구조를 갖는 분말을 합성하였다.

Ni/YSZ core-shell은 나노 크기의 구형 Ni을 합성하는 도중에 YSZ와 계면활성제를 첨가하여 합성하였다. 이때, 계면

활성제의 흡착력에 의해 Ni(200~500 nm)은 Core에, Ni의 1/5 수준인 100 nm 이하 크기의 YSZ는 shell에 위치하였

다. 보다 치 한 구조의 Ni/YSZ core-shell은 YSZ powder보다 입자크기가 작은 YSZ sol상태일 때 가능하였다.

균일한 미세구조를 갖는 Ni/YSZ core-shell은 입자간의 균일 분포로 인하여 Ni/YSZ 복합체에 비해 수소선택성과 메

탄전환율이 최대 24.1%과 36.5% 향상된 특성을 확인하였다. 또한 800 에서 전기전도도 3275 S/cm와 최대전력

도 (Pmax) 850 W/cm2 그리고 ASR 0.26 Ω.cm2의 값으로 향상된 전기적 특성을 나타내었다.

Keywords: solid oxide fuel cell(sofc), anode, ni/ysz core-shell, surfactant, homogeneous microstructure

KIC News, Volume 17, No. 3, 2014

KIC News, Volume 17, No. 3, 2014 91

2LF-16 Facile synthesis of mesoporous iron oxide and carbide cubes by the thermal treatment of

iron oxalate cubes

홍석용·박지찬·천동현†

한국에너지기술연구원

([email protected]†)

Owing to defined morphology, high surface area and various application, iron oxide have received extensive

attention. Their synthesis still focuses on either hard or soft template method. However, they are tedious,

harmful, low stability and crystallinity. In this study, our synthesis method was newly developed to prepare metal

oxalates by using both of saccharide and PVP, and then the metal oxide and carbide were prepared by thermal

decomposition. This method could control its shape and change into phase such as oxide, carbide. Moreover, it

was advantageous in low cost, environment friendliness, easy preparation.

Keywords: catalysis, metal oxalate, iron oxide, iron carbide

Excellent Paper Presentation Award

1SG-6Fabrication of coaxial silicon nanoparticles-carbon nanotubes/carbon nanofibers for use in

anodes of lithium ion batteries

NGUYEN TRUNG HIEU·박준서†·정옥희*

한경대학교,* 순천대학교

([email protected]†)

Coaxial electrospun silicon nanoparticles-carbon nanotubes/carbon nanofibers (SCNFs) were fabricated using

electrospinning a blend of silicon nanoparticles (SiNPs), carbon nanotubes (CNTs), and poly vinylpyrrolidone

(PVP) in the core and polyacrylonitrile (PAN) in the shell. After carbonization at 1000 for 2 h in nitrogen,

the SCNFs were formed with carbon shell encapsulating SiNPs/CNTs core. SCNF electrode-based Li-ion

batteries (LiBs) were prepared with different amount of CNTs (CNT/SiNP = 0.5, 1, 2, 5, 10 wt%). The coaxial

structure and morphology of SCNFs were characterized. The charge-discharge voltage profile and cycling

behavior of the LiBs were tested.

Keywords: lithium-ion battery, silicon nanoparticle, electrospinning, nanofiber

1SE-2Selective reductive cleavage of inert aryl C-O bonds by a heterogeneous Bi-Metallic catalyst

Ajay K Singh·Kyungrok Kim·Seugwook Jang·Dong Pyo Kim†

POSTECH

([email protected]†)

Selective Reductive Cleavage of Inert Aryl C-O Bonds of biomass and chemical feedstock’s from renewable

resources (formic acid) is a promising potential source of clean chemicals and reduce the worlds dependence on

crude-oil. With the help of dual functionalized catalyst, biomass and chemical feedstocks can be converted

efficiently to produce valuable chemicals. Unfortunately, making the dual functionalized stable heterogeneous

catalysts is more difficult to control on molecular level. Here, we describe the new route for synthesis of stable

dual functionalized catalyst and catalytic reductive cleavage of inert aryl C-O bond a series of lignin derived

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92 공업화학 전망, 제17권 제3호, 2014

biomass and chemical feed stocks to provide valuable chemicals. Synthesized catalysts have been characterized

by aberration-corrected scanning transmission electron microscopy (as well as other techniques), giving

molecular level architecture and unique catalytic properties.

Keywords: bio-mass, lignin, formic acid, bimetallic catalyst, N-doped graphene oxide, fuel upgrading

우수논문상-포스터

[고분자] 1P-491

Reversible shape changing of multicompartmental microfibers

이재민·이경진†

충남대학교

([email protected]†)

Materials in nature provide broad range of useful inspiration for preparing smart micro-building block. One

of most interesting materials will be stimulus responsive polymers. Diverse range of examples has been reported

about preparation of smart materials made of stimulus responsive polymers. In this study, we attempt to

incorporate temperature responsive hydrogel into microbuilding block to produce multicompartmental

microfibers in shape of core-shell structures by electrohydrodynamic co-jetting. Core-shell microfibers are

jetted with parallel flow of solutions containing PNIPAM-co-PGMA in core and PLGA in shell. The water

soluble PNIPAM-co-PGMA, is crosslinked with ethylenediamine during co-jetting. The core/shell

microcylinders containing hydrogel in the cores shows reversible shape shifting by change of external

environmental. The fibers are characterized by scanning electron microscope, confocal laser scanning

microscope, and optical microscopy.

Keywords: multicompartmental microfiber, electrojetting

1P-492 Improved thermal conductivity of stretchable PVA/h-BN composites

권오환*,**·하성민*·고원건**·유영재*,†

*한국화학연구원,**연세대학교

([email protected]†)

As an efficient heat releasing material from the inside of electric and electronic devices is getting important

for both their drastic miniaturization and high performance, the use of polymers and polymer composites as

thermally conductive materials is increasing for weight loss, low cost, facile processibility and high performance.

In this work, we demonstrate that enhanced thermal conductivity of polyvinyl alcohol (PVA) composites using

hexagonal boron nitride (h-BN). For better dispersion without additional surface modification of h-BN,

ultra-sonication with high intensity ultrasonic probe was used to prepare the hybrid solution. A custom-made

film stretching apparatus was used to determine the stretching properties. Thermal conductivities of cast films

and stretched films were determined using laser flash method.

Keywords: thermal conductivity, stretchable film, hexagonal boron nitride

KIC News, Volume 17, No. 3, 2014

KIC News, Volume 17, No. 3, 2014 93

1P-523 피렌 유도체를 이용한 Carbon nanotube 및 Carbon fiber 표면처리와 이를 이용한 나노카본-고분자 복합체 형성

김지영†·조민현

중앙대학교

([email protected]†)

Carbon fiber(CF)는 고분자 복합체 내에서 충전재로써 기계적 물성 향상에 기여를 하며 Carbon nanotube(CNT)는

CF와 함께 이용 시 물성의 전반적인 향상에 기여를 한다. 본 연구에서는 복합체 제조 시에 일어나는 CF와 CNT 간의

분리 방지와, 화학적 처리로 인한 CF와 CNT의 구조적 손상의 최소화를 위해 피렌 유도체를 이용했다. CF와

multi-walled carbon nanotube (MWCNT)에 1-Aminopyrene (AP)과 1-pyrenebutyric chloride (PBC)를 물리흡착

을 이용해 CF에 amine group (CF-AP) 과 MWCNT에 acyl chloride group (MWCNT-PBC)을 도입 했다. 흡착된 피

렌 유도체의 작용기 간 반응을 통해 CF-MWCNT 제조 후 고분자와의 melt mixing을 통해 복합체를 형성했다. 물리

흡착 및 반응 여부는 FT-IR 및 XPS를 통해 분석하였으며 FE-SEM 및 TEM을 이용하여 CF 표면에 성장된 CNT 확

인 및 복합체 제조 후 CNT가 CF 표면에서 이탈되지 않고 정상적으로 결합 되어있는지를 확인했다.

Keywords: pyrene-derivatives, nanocarbon-polymer composite, carbon fiber

1P-486 Entrapped nanofibers within hydrogel microparticles for cell encapsulation

Mallinath·이종휘†

중앙대학교

([email protected]†)

Electrospun nanofiber based pH dependent microhydrogels were developed through a combination of normal

electrospinning and spraying. In this study, we prepared the entrapped polystyrene (PS) nanofibers within sodium

alginate (SA) microhydrogels through a combination of electrospinning and spraying and developed well defined

microhydrogels with incorporated nanofibers. Optical microscopy revealed uniform surfaces and smooth

structures (bead free) with SA microhydrogels entrapped PS nanofibers respectively. These physically sprayed SA

microparticles were ionically crosslinked with aqueous calcium chloride. It concludes that 60 mins of ionic

crosslink gives perfectly entrapped SA microhydrogels on the PS fibers. This work suggests one possible

approach for drug release or cell encapsulation of such actives using microarchitectures. The combination of

electrospinning and spraygun seems to be a useful technique for the preparation of microarchitectures and the

combination of two nanomaterials.

Keywords: PS, sodium alginate, spraygun and electrospinning technique etc.

2P-443 Boronic acid and catechol conjugated polymer for having pH sensitive polymer with BODIPY

use as cancer cell detection

이소영·신춘임·김성한·박수정·강은비·박성영†

한국교통대학교

([email protected]†)

This paper is reports the development of pH responsive polymeric nanoplatforms having pH responsive

boronate ester with reduced graphene oxide(rGO). The facile conjugation between BODIPY/Boronic acid

conjugated PEG-g-poly(DMA-co-NIPAAm) and catechol conjugated poly(DMA-co-NIPAAm) with rGO was

confirmed by 1H NMR, UV-vis and fluorescence spectroscopy. This nanoplatforms is confocal images of the

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94 공업화학 전망, 제17권 제3호, 2014

prepared nanoplatforms against MDA-MB 231 breast cancer cells confirm the intense green fluorescence at low

and high pH values but no fluorescence signal under physiological pH condition enabling the nanoplatforms as

a novel fluorescence probe. The nanoplatforms also revealed outstanding cell viability. Therefore, the developed

nanoplatforms are novel candidate for a fluorescent probe to effectively detect tumor cells.

Keywords: BODIPY, boronic acid, catechol, ph sensitive, cell imaging

2P-472 Synthesis of poly(glycidyl azide-b-polystyrene) block copolymer via sequential ionic polymerization

김정수·이재명·김지은·권정옥·노시태†

한양대학교

([email protected]†)

Using a plug flow reactor system for anionic functionalization and controlled batch reactor system for cationic

ring opening polymerization, poly(glycidyl azide-b-styrene) block copolymer was synthesized. Anionic

polymerization of styrene was carried at -25 followed by anionic functionalization of polystyrene with

epibromohydrin at -78. And Epichlorohydrin (ECH) was polymerized by using BF3-tripropylene glycol (TPG)

complex via Active monomer mechanism. After ECH polymerization was complete, ω-epoxy terminated PS

(EpPS) was introduced to the PECH solution in presence of BF3. The resulting polymer had bimodal

distribution when the mole ratio of [EpPS]/[TPG] was more than 0.5 due to the PS-PS coupling reaction.

Poly(glycidyl azide-b-styrene) (GAP-PS) was obtained by azidation reaction of PECH-PS with sodium azide.

Thermal behavior of the PECH-PS block copolymers and GAP-PS block copolymer were also investigated.

Keywords: anionic polymerization, cationic ring opening polymerization, plug flow reactor, glycidyl azide

polymer

2P-512 선형 가교제를 이용한 폴리이미드 분리막의 가교 및 이에 따른 기체분리특성 평가

이혜림·남상용†

경상대학교

([email protected]†)

기체분리막의 성능을 향상시키기 위한 여러 개질 방법 중 가교는 사슬 간격과 사슬 내 외부의 유동성을 감소시켜 분

리막의 선택도, 내화학성, 내가소성등을 증가시키는 장점을 지닌다. 본 연구에서는 선형의 지방족 가교제를 사용하여

폴리이미드 분리막의 기체 분리 성능을 향상시키고자 하였으며, 가교제의 알킬 길이에 따른 영향 또한 알아 보았다.

가교 여부는 이미드 그룹의 특성피크 증가와 아미드 그룹의 특성피크 감소를 통해 확인하였다. 가교 후 지방족 가교제

의 분해와 주쇄의 이미드 고리의 풀림으로 인해 가교 전 보다 열분해 온도는 감소 하였고 가교 결합 형성으로 인해

d-spacing값 또한 감소 하였다. 기체분리특성은 CH4, N2, O2, CO2 단일 기체에 대해 측정하였으며 가교제 및 가교도

에 관계없이 가교 후 기체의 확산 감소로 인해 네 기체 모두 투과도가 감소하였다. 반면에 CO2/CH4, O2/N2 기체쌍의

선택도는 가교 전보다 향상된 결과를 나타내었다.

Keywords: gas separation, membrane, chemical crosslinking

2P-513 Synthesis and properties of blue-light-emitting anthracene derivativewith bulky substitution product.

백장열·김윤희*,†·권순기·천예림*·황재영*·이지상

경상대학교 고분자공학,* 경상대학교 화학

KIC News, Volume 17, No. 3, 2014

KIC News, Volume 17, No. 3, 2014 95

([email protected]†)

A series of blue light emitting small molecule materials based on anthracene derivatives have been synthesized

by Grignard reaction, Suzuki coupling reaction, etc. These materials showed bright blue emission and good

thermal stability due to rigid structure of anthracene. Several doped device using these anthracene derivatives

used for emitting layer had been fabricated. The devices based on host (BSA) and dopants (DMF1A or DMF2A )

showed good EL performance. Device based on host (BSA) and dopant (DMF1A) showed maximum current

efficiency (5.54 cd/A) and maximum power efficiency (2.96 lm/W).Device based on host (BSA) and dopant

(DMF2A) showed maximum current efficiency (4.10 cd/A) with CIE (0.15, 0.20).

Keywords: blue emitting material, OLED

2P-514 Thermal, mechanical, rheological properties and shape memory effects of maleated polyolefin

elastomer/Nylon11 blend nanocomposites with halloysite nanotube

김태현·장영욱†

한양대학교

([email protected]†)

Polymer nanocomposites reinforced with small amounts of inorganic nanofillers have been regarded as a

important class of materials. Halloysite nanotube (HNT), a tubular type nanoclay, has been recognized as an

effective nanofiller for various polymers. In this study, we observe that maleated semicrystalline polyolefin

elastomer (mPOE)/nylon 11 blends prepared by a melt mixing exhibit thermoplastic elastomer-like behavior

along with shape memory effects when the nylon 11 content is up to 30 wt% in the blend. mPOE/nylon 11

blend (70/30) nanocomposites with HNT were also fabricated by melt mixing process, and their thermal,

mechanical, rheological properties and shape memory effects were investigated.

Keywords: mPOE/nylon 11 blends, thermoplastic elastomer, HNT, nanocomposites

2P-520 Gas permeation properties of copolyimide membranes containing durene moiety

이정무·남상용*,†

애경유화,* 경상대학교 나노·신소재공학부 고분자공학전공

([email protected]†)

The gas separation membrane for on-board inerting gas generating systems (OBIGGS) is the best way to

avoid damage to the fuel tank and explosion. The aromatic polyimide materials for gas separation membrane

have been studied due to good chemical resistance and excellent mechanical strength [1]. The polyimide

containg durene diamine and 2,2-bis(3,4-dicarboxyphenyl) hexafluoropropane dianhydride (6FDA) exhibits

high gas permeability, but it has low selectivity [2]. In this study, the copolyimides based on 6FDA-durene

were synthesized with rigid diamine by chemical imidization in order to overcome the disadvantage. Polyimide

obtained via chemical imidization is possible to make at low temperature and good solubility. The copolyimide

membranes were prepared by solvent evaporation method to evaluate their gas transport properties using

Time-lag at 30 ºC. The chemical structures of prepared copolyimides were confirmed by FT-IR and NMR.

The chemical and mechanical properties of copolyimides were evaluated by TGA, DSC, XRD

Keywords: gas separation membrane, polyimide

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[나노] 1P-17

에어로졸 공정에 의한 다공성 TiO2 제조 및 염료감응형 태양전지 특성평가

조은희*,**·장한권*,**·김선경*,***·노기민*·장희동*,**,†

*한국지질자원연구원,**과학기술연합대학원대학교,***서강대학교

([email protected]†)

염료감응형 태양전지(Dye-sensitized solar cell, DSSC)는 기존의 화석연료를 대체할 친환경 에너지 자원으로서 저

렴한 제조비용과 간단한 제작공정, 20년 이상의 긴 수명을 가지는 장점으로 많은 주목을 받고 있다. 이러한 DSSC에

적용되는 TiO2 나노입자는 광학적으로 안정하고 넓은 밴드 갭과 비표면적을 가지며, DSSC의 효율을 증가시키기 위한

중요한 변수이다. 따라서 DSSC의 효율을 향상시키기 위해서는 TiO2 광전극으로 효과적인 전해질 주입과 염료의 흡수

율을 증가시키는 것이며, 이것은 TiO2의 공극구조와 형상에 크게 의존한다.

본 연구에서는 넓은 비표면적을 갖는 다공성 TiO2를 제조하기 위하여 TiO2 sol과 Polyethylene glycol (PEG)의 혼합

용액으로부터 에어로졸 공정을 이용하여 다공성 TiO2 분말을 제조하였다. 제조된 분말은 FE-SEM, BET, BJH 등을

이용하여 분말의 형상, 비표면적, 공극특성을 분석하였고, Solar simulator를 이용하여 DSSC의 효율을 측정하였다. 제

조된 분말은 크기가 약 1 인 구형의 다공성 형상을 가지며, 비표면적은 최대 103 m2/g으로 나타났다. 다공성 TiO2를

적용한 DSSC의 효율을 측정한 결과, 기존 TiO2 보다 향상된 효율을 나타내었다.

Keywords: 다공성 TiO2, Polyethylene glycol, 태양전지

1P-32 Fabrication of silica hollow nanotube via vapor phase synthesis with selective functionalization

on inner & outer surfaces

이충현·장정식†

서울대학교

([email protected]†)

Silica hollow nanotubes were fabricated using vapor phase synthesis of silica precursor with hard template

method. In particular, inner and outer surface of silica hollow nanotube were readily treated with various silanes

and respective functional groups, such as amino group, carboxyl group, and fluorine group, were identified with

FT-IR analyses. In addition, poly (acrylic acid) (PAA) was deposited inside the wall of silica hollow nanotube

via vapor deposition polymerization, amplifying the carboxyl group. This PAA-functionalized silica hollow

nanotube worked as a Pd catalyst support, catalyzing Heck-coupling reaction of aryl iodide and olefin.

Selective functionalization technique on substrate can be further applied in various application, such as catalysis

or drug delivery system.

Keywords: silica, nanomaterial, silane functionalization

1P-64 Solventless thermal decomposition method for the synthesis of copper nanoparticles

최은진·이소희·박원철†

서울대학교

([email protected]†)

Copper (Cu) nanoparticles were prepared by facile solventless heat treatment method, in which copper (II)

formate was dissolved in xylene by surface modification with hexadecylamine and mixed with salt powder as a

matrix for preventing aggregation of the nanoparticles. Through the thermal treatment process, spherical Cu

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nanoparticles were synthesized and stabilized in ethanol after removing salts using aqueous hydrazine solution.

The synthetic procedure provides a simple and scalable approach for mass production and can be widely applied

to prepare other metal nanoparticles or alloy nanoparticles.

Keywords: Cu nanoparticles, solventless method, thermal treatment

1P-65 Ink jet printing을 위한 수용성 silver complex ink의 제작

김석준·인인식†·박영호

한국교통대학교 나노화학소재공학과

([email protected]†)

기존에 사용되고 있는 photolithography나 물리적 화학적 증착 등의 방식은 경제적, 환경적 문제등으로 많은 한계에

봉착하여 있다. 그 때문에 그 대안으로써 roll to roll, screen tprinting, ink jet printing, micro gravure printing 등의

간단 하면서도 적은 비용으로 빠른 생산이 가능한 인쇄 전자기술들이 주목받고 있다. 그 중에서 본 연구에서는 silver

를 ink jet printing 소재로써 사용하기 위하여 silver 원자가 다른 분자와 결합 하여 complex를 형성한 구조를 갖는

silver complex ink를 합성하는 연구를 하였으며 Touch panel, RFID, flexible display등으로 응용되기 위한 silver ink

의 물성 및 특성에 대해 연구하였다.

Keywords: ink jet printing, 수용성 silver complex ink, silver complex ink

[무기재료] 2P-38

Effects of surface modification on EMI properties of electroless nickel plated MWCNTs

이시은·김도영·윤국진·이영석†

충남대학교

([email protected]†)

In this study, the multi-walled carbon nanotubes (MWCNTs) were plated with nickel using electroless plating

method according to the time of plating. Uniform nickel film on MWCNTs is plated by this method. The nickel

electroless plated MWCNTs were investigated by shielding electromagnetic interference(EMI). EMI shielding

efficiency of nickel electroless plated MWCNTs was measured to be 16 dB under 800MHz band, which was

increased by 1.6 times compared to that of the untreated MWCNTs. This improvement was attributed to the

uniform nickel plating of film form compared to spherical form on MWCNTs.

Keywords: electroless plating method, electromagnetic interference (EMI)

2P-40 Synthesis of F-TiO2/TiOF2 mixture for photocatalyst

정진영·이다영·박미선·이영석†

충남대학교

([email protected]†)

The mixture of F-TiO2/TiOF2 has been synthesized using titanium (IV) isopropoxide (TTIP) as titanium source

by thermal fluorination at high temperature according to different partial pressure of fluorine gas. The

morphological properties and crystalline of thermally fluorinated photocatalysts were investigated using X-Ray

diffraction (XRD) and Scanning Electron Microscope (SEM). The results showed that the crystal form of

F-TiO2/TiOF2 mixture was generated with different ratios by thermal fluorination. With increase of the fluorine

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partial pressure, ratios of cubic-shaped TiOF2 increased compared to globular-shaped TiO22. Also, the

degradation rate constant of thermally fluorinated photocatalysts in high partial pressure of fluorine gas

exhibited approximately 70 times more than that of non-fluorinated TiO2. It is due to increase of the surface

hydroxyl group content and oxygen vacancies.

Keywords: F-TiO2, TiOF2, thermal fluorination, photocatalysts, oxygen vacancies

[생물공학] 2P-106

Extraction and transesterification of triglyceride from wet microalgae for the production of biodiesel

이옥경·이주희·허동훈·이은열†

경희대학교 화학공학과

([email protected]†)

Microalgae are a source of renewable oil for biodiesel production, as well as a feedstock for the production

of additional biofuel and chemicals. Large amount of water in wet biomass hampers an efficient extraction and

conversion of algal lipids to biodiesel. Dewatering and drying of wet microalgae is cost- and energy-intensive

process. In this study, we conducted lipid extraction and transesterification of the extracted lipid for biodiesel

production from wet microalgae biomass. More than 85% of total lipids were extracted from wet microalgae

(75% moisture) using dimethylcarbonate/methanol mixture, and then 70% of the extracted lipids were converted

to FAMEs.

Keywords: wet microalgae, extraction, transesterification, biodiesel

2P-56 Cell-free synthesis and in situ immobilization of recombinant Clonorchis sinensis proteins for

the screening of effective antigen candidates

이승원·김동명†

충남대학교 정 응용화학과

([email protected]†)

Development of effective antigens is demanded for efficient diagnosis and treatment of the parasite infection.

While it is required to express and purify the recombinant proteins of the parasite for screening of novel

antigens, cell-based expression method is time consuming and laborious. In this study, we explored a novel

approach of cell-free expression and in situ immobilization of antigen to overcome the present limitations in

antigen screening procedures. 5`-biotinylated PCR products of the genes were immobilized on agarose bead

coated with streptavidin. When the DNA-conjugated agarose beads were incubated in a reaction mixture for

cell-free synthesis, expressed proteins were immobilized on the same bead. Through this method, we were able

to discover novel proteins that showed strong antigenicity. We expect that the effectiveness and throughput of

cell-free expression and screening of antigenic proteins can be further improved when integrated with FACS.

Keywords: cell-free synthesis, FACS, in situ immobilization

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[석유화학⋅윤활유] 1P-107

Effects of the chain length of tris(carboxyalkylamino)triazine derivatives on their corrosion inhibition properties

유승현·김영운†·정근우·김남균

한국화학연구원

([email protected]†)

The corrosion inhibition properties of triazine derivatives (Tris-Cn) containing amine groups and various

lengths of alkyl carboxylic acid groups were studied. It was found that the Tris-Cn behaved like mixed type and

adsorptive corrosion inhibitors. It was also observed that with increasing alkyl chain length of Tris-Cn, the

corrosion inhibition property of triazine derivatives enhanced significantly.

Keywords: corrosion inhibitor, acid solution, triazine

1P-111 C3 키랄 화합물 제조를 위한 촉매의 제조와 반응 특성

이선호·전상권·양진영·박근우·이경찬·김건중†

인하대학교

([email protected]†)

키랄 에피클로로히드린(Chiral Epichlorohydrin)은 항에이즈 의약품, 고지혈증 치료제, 항생제 등 수많은 의약품의

핵심 기초 물질로 사용된다. 본 연구에서는 키랄살렌 촉매를 현택환 메조 실리카에 담지시키고 고정하여

Heterogenious촉매로 만들고, 라세믹 ECH(Epichlorohydrin)를 출발물질로 하여 촉매반응을 통한 높은 광학적 선택

성을 갖는 키랄 ECH를 제조하였다. 이러한 기능을 갖는 촉매를 제조하기 위해 현택환 메조 실리카에 THF를 용매로

사용하여 살렌 촉매를 내부로 담지 시킨 다음, TEOS(Tetra orthosilicate)와 C8 Silane을 이용하여 졸을 만들어 현택환

메조 실리카의 표면을 덮고 건조하였다. 이렇게 만들어진 촉매는 TEM분석과 BET분석을 이용하여 물성을 분석하였으

며, 또한 ECH와의 촉매반응을 통한 광학 선택성을 GC분석을 통해 확인할 수 있었다. 담지화 된 후 고정된 촉매는 반

응이 끝난 후에 회수를 하여 재사용 하는데 용이하였으며, 높은 광학 선택성을 가지는 ECH를 얻을 수 있었다.

Keywords: 촉매, 키랄

[에너지저장⋅변환] 2P-100

Biocatalytic production of long-chain dicarboxylic acids from ricinoleic acids using

recombinant escherichia coli

이재훈·이은열†

경희대학교

([email protected]†)

Biocatalytic production of functional monomers from biomass such as plant oil has attracted much attention

in sustainable chemical industry. Long-chain dicarboxylic acids (DCA) can be used to produce a variety of

polymers, functional chemical products or intermediates. In this study, we produced DCA using the recombinant

Escherichia coli expressing the alcohol dehydrogenase (ADH), Baeyer–Villiger monooxygenase (BVMO) and

esterase. Culture condition for obtaining recombinant cells with high activity was optimized, and reaction

conditions for biotransformation of ricinoleic acid to DCA were also optimized.

Keywords: dicarboxylic acids, ricinoleic acids, alcohol dehydrogenase, Baeyer–Villiger monooxygenase, esterase

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2P-143 Graphene decorated vanadium pentoxide nanobelts as an efficient counter electrode for

dye-sensitized solar cells

이민오·Suresh kannan balasingam·조임현·전용석*,†

UNIST,* Konkuk University

([email protected]†)

Various compositions of graphene decorated vanadium pentoxide nanobelts (GVNBs) are synthesized via

one-step hydrothemal method. The dye-sensitized solar cells (DSSCs) using GVNBs as a counter electrode

showed an exellent catalytic effect for the reduction of triiodide to iodide. As a consequence, the power

conversion efficiency (PCE) of DSSCs made of GVNB materials is higher than that of the conventional

platinum based electrode.

Keywords: vanadium pentoxide, graphene, counter electrode, dye-sensitized solar cells

2P-146 Effect of alkyl chain length on charge transfer at interface for dye-sensitized solar cells based

on organic sensitizers

조효정·남정은·김대환·강진규†

DGIST

([email protected]†)

Over the last decade, dye-sensitized solar cell (DSSC) based on Ru-Complexes have been attracted much

attention due to the high solar-to-electricity conversion efficiency up to 12% as well as low cost compared

with p-n junction photovoltaic devices. Recently, organic dye molecules benefit from lower fabrication costs

and higher molar extinction coefficients than Ru-dyes but generally produce less efficient solar cells. According

to our recent report, it was observed that the electron lifetimes (τ) for the DSSCs with organic dyes were

shorter than with a Ru dye. And we found that the long alkyl chain not only increases open-circuit voltage,

but also decreases the electron recombination rate. In this work, organic photosensitizing dyes containing a

phenothiazine framework with different alkyl chain length in the chromophore were synthesized to investigate

the correlation between the alkyl chain length and photovoltaic properties as photosensitizers for DSSC.

Keywords: organic dye, recombination, DSSC

2P-160 Effective dispersion and exfoliation through controlling pH of graphene oxide for graphene/styrene composites

이민철·홍창국†

전남대학교

([email protected]†)

Graphene is outstanding material which has a two-demension carbon structure because of its unique physical,

chemical, and mechanical properties. therefore, Graphene has been attracted as nanofiller for nanocomposites.

Chemical modified graphene has been promising method to achieve mass production of Graphene.

Polystyene/Graphene composites was produced because Styrene has widely used to a variety of product.

Graphene oxide was prepared by modifided Hummers method. And then filteration with glass filter was

conducted for Neutralization of GO. subsequently, horn-sonication was carried out in 30mins for exfoliation of

Graphene Oxide. Also aGO was reduced by Hydrazine hydrate. and then 01.M HCl was dropped in as-prepared

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GO(aGO) owing to blending styrene and aGO. Also As time goes on, styrene/Graphene mixture was turned like

a gel. Stryrene/Graphene composites was made by drying the mixture in vacuum oven at 80°C. In conclusion,

Electrical and Mechanical Properties was compared GO/Styrene to GO/Styrene composites.

Keywords: graphene, styrene, composite, dispersion, exfoliation, pH

2P-162 The Effect of new additive for highly conductive PEDOT:PSS films

안미임·권세진·송호준·신교직·최경호·이상국†

한국생산기술연구원

([email protected]†)

poly(3,4-ethylenedioxythiophene):poly(stryensulfonate)(PEDOT:PSS) is the most simple conducting polymer.

PEDOT:PSS films have high transparency and mechanical flexibility. However, PEDOT:PSS have a problem of

low conductivity. In this study, we have tried to improve low conductivity PEDOT:PSS by using sulfuric acid

based additive. The conductivity of PEDOT:PSS films was significantly enhanced that the depended on the

amount of sulfuric acid based additive and annealing temperature. We examined conductivity, sheet resistivity

and transmittance of PEDOT:PSS film. Also, We investigated morphological properties of PEDOT:PSS films by

AFM.

Keywords: conducting polymer, PEDOT:PSS, conductivity

2P-163 CuO-TiO2 nanostructure for CO2 conversion to methane

김혜림·인수일†

대구경북과학기술원

([email protected]†)

One of the recent problems concerning people is the sharp escalation in the level of carbon dioxide in regards

to global warming. For solve the problem, the later research stream employs two main processes;

thermochemical and photochemical for conversion of CO2 into useable products. The photochemical conversion

is a cost effective and preferred process for the photoreduction of CO2 into useful liquid fuels like methanol,

formaldehyde, and methane gas. Here, we describe the simply synthesizing the CuO-TiO2 nanostructure, a

hybrid material photocatalyst. The synthetic method uses CuS nanostructure using electrochemical anodization

and embedded titanium isopropoxide as Ti precursor, oxidation of the Cu and Ti to form CuO-TiO2

nanostructures at low-temperature (400 ) condition.

Keywords: photocatalyst

2P-167Side chain effects on the crystallinity and solubility of conjugated polymers in organic photovoltaics

고의진·송관욱·백경훈·문두경†

건국대학교

([email protected]†)

In recent years, many types of side chains were introduced to conjugated polymer backbones for enhancing

molecular weight, solubility and processability. Moreover, these enabled conjugated polymers and fullerene

derivatives to mix properly, and controlled intermolecular interaction. Benzo[1,2-b:4,5-b`]dithiophene(BDT) is

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well known as a good electron donating unit, having a good carrier mobility and coplanar structure.

Polythiophene showed a good hole mobility, but had low solubility in common organic solvents.

In this study, BDT and bithiophene were polymerized by Stille coupling reaction. The synthesized polymers,

PBDTBiTh(2EH) and PBDTBiTh(12C), had 2-ethylhexyl and n-dodecyl side chain on the 4,4` positions of

bithiophene, respectively. The synthesized copolymers were characterized by 1H-NMR, GPC, UV-visible

spectroscopy and cyclic voltammogram.

Keywords: crystallinity, solubility, stille coupling reaction, absorption coefficient, organic photovoltaics

2P-179 Fabrication of Cu2ZnSn(S,Se)4 films by selenization of stack precursor layers

손대호·김대환·김영일·양기정·박시내·심준형·강진규†

대구경북과학기술원

([email protected]†)

A thin film Cu2ZnSnS4 (CZTS) solar cell has received much attention in recent years. CZTSs earth-abundant

and non-toxic elemental composition makes it an ideal candidate to replace Cu(In,Ga)Se2 (CIGS) and CdTe

solar cells which face material scarcity and toxicity issues. In this work, we demonstrate a simple route to

fabricate CZTS and CZTSSe films by using RF/DC sputtering from stacking orders of metal precursor. The CZTS

and CZTSSe absorber layer was simply fabricated for sulfurization and selenization annealing process of metal

precursor film in the presence of S. The effects of the different annealing temperature in the metal precursor

having S on the structural, morphological, electrical properties of CZTS and CZTSSe absorber films were

investigated.

Keywords: CZTS, CZTSSe

2P-189 Extremely flexible silver nanowire-graphene hybrid transparent electrode for organic photovoltaic devices

이동화·이형진·안유미·이윤구†

대구경북과학기술원

([email protected]†)

Transparent electrodes (TEs) based on indium tin oxide (ITO) have been widely used as an essential element

of various organic photovoltaic (OPV) devices. However, it possesses several drawbacks such as high cost,

brittleness, and high processing temperature. Therefore, cheap, flexible, and solution-processed TEs have been

required for emerging OPV devices. Recently, silver nanowires (AgNWs) TE showed the superior optical and

electrical performance comparable to ITO. However, they still have issues on a long-term stability and

electrical connection, which make them difficult for practical use. In this work, we fabricated a

AgNW-Graphene hybrid TE to overcome its issues due to the graphene layer acted as both efficient electron

transport pathway and excellent gas-barrier property. Furthermore, OPV devices with the AgNW-Graphene

hybrid TE showed excellent photovoltaic performance as well as superior long-term stability under ambient

conditions.

Keywords: AgNW, graphene, transparent electrode

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2P-202 금속치환 페라이트를 이용한 메탄 개질 반응으로부터의 합성가스와 수소 생산

이동희·김영호†·김효섭·박주식*

충남대학교,*한국에너지기술연구원

([email protected]†)

구리 치환 페라이트의 격자 산소를 메탄가스와 반응시켜 합성가스를 생산하고, 이어서 환원된 금속 산화물을 물과

반응하여 순수한 수소 가스의 생산이 가능하다. 매체의 고온 안정과 반응성 향상을 위해 yttria-stabilized

zirconia(YSZ)를 지지체로 이용했다. 함침법으로 제조된 구리 치환 페라이트는 900 에서 85% 이상의 높은 메탄 전

환율을 보였으며, 이어서 700 에서 물 분해 반응을 통해 수소를 생산했다. 구리 치환 페라이트에 대한 반복 운전 안

정성을 연구하였으며, 그 과정에서 생성되는 기체의 수율 및 메탄 가스의 전환율을 확인하였다.

Keywords: 메탄 개질, 페라이트, 합성가스, 수소

2P-204 Electrochemical properties of Lithium pre-doped graphene oxide for Li ion capacitor

조은아·박수진†

인하대학교

([email protected]†)

In this work, we studied the electrochemical properties of lithium ion capacitor for amount of lithium ion

pre-doped graphene oxide (Li-GOs). The elemental composition of the surface of the Li-GOs was

characterized by X-ray photoelectron spectroscopy (XPS). The specific surface area and micropore volumes of

the N-MCs were investigated using the Brunauer-Emmett-Teller (BET) and Dubinin-Radushkevich (D-R)

equation respectively. Electrochemical measurements were performed in a three-electrode system using the

cyclic voltammetry (CV). Electrochemical properties were enhanced with increasing of lithium ion amount on

the Li-GOs.

Keywords: lithium ion capacitor, lithium pre-doping, graphene oxide

2P-221 Synthesis of multi-walled carbon nanotubes-porous silica composites impregnated with

polyethyleneimine for CO2 capture

이민상·박수진†

인하대학교

([email protected]†)

In this work, the multi-walled carbon nanotubes (MWCNTs)-porous silicas have been synthesized by

hydrolysis with tetraethylorthosilicate (TEOS). Also, the prepared samples were impregnated with

polyethyleneimine (PEI) for increasing of CO2 adsorption properties. The CO2 adsorption capacity was evaluated

by TGA method in 15% CO2 condition, which was similar condition with fossil-fuel power plants. Pristine

MWCNTs showed a low CO2 adsorption capacity due to their low microporosity. However, the

MWCNT-porous/PEI had higher CO2 adsorption capacity and good cycle stability in CO2 capture experiment

with TGA method.

Keywords: carbon nanotubes, carbon dioxide capture, polyethyleneimine, TGA method

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104 공업화학 전망, 제17권 제3호, 2014

2P-228 Tuning of thermal properties and impregnation of erithritol as phase change materials by

blending with expanded graphite

신혜경·박미라*·박수진†

인하대학교,*전북대학교

([email protected]†)

The use of Phase change material (PCM) is one of the routes for the storage of transitory excessive energy

from industry for use at a more suitable later time. One of the materials with a high energy storage over 100

is erithritol, on which several studies were conducted to solve the thermal properties and impregnation

problems by adding the additives. Therefore, in this article, Erithritol/ expanded graphite (EG) composites for

PCM were prepared according to EG concentration. A variety of EG concentrations were respectively added

into the molten erithritol solution in order to study the effect of EG concentration as the additives on the

thermal properties and impregnation of erythritol as PCM. The structure of the PCM composite was

characterized using scanning electron microscopy. The improvement of the thermal conductivity of

erythryitol/EG composites were investigated and the latent heat for impregnation and thermal stability of

erithritol/EG composites were evaluated by differential scanning calorimetry (DSC) measurement.

Keywords: phase change material,erythritol, thermal property, latent heat

2P-231 Enhanced and tunable side chain using benzodithiophene and thiophene in polymer solar cells

이태호·전성재·허정림·문두경†

건국대학교

([email protected]†)

Polymer solar cells (PSCs) have attracted considerable attention as a promising long-term solution, renewable

energy, flexibility and lightweight. Bulk heterojunction(BHJ) solar cells, with an active layer comprising an

interpenetrating network of conjugated polymers and fullerene derivatives, have been extensively studied and

display the highest efficiencies to date in PSCs. Benzodithiophene(BDT) unit is attractive due to its compact

planar structure that could be beneficial to the electron delocalization and improve mobility into various

conjugated polymers. 2D Thiophene spacer was introduced in polymer side chain for increasing charge

transporting property and π-conjugation length. In this study, we synthesized 2D BDT copolymer and

investigated their PSCs property.

Keywords: polymer solar cells, bulk heterojunction, benzodithiophene, side chain

2P-251 Surface coverage-tunable, multifunctional semi-interpenetrating polymer

network-nanoarchitectured lithium ion cathode materials for high voltage battery

김주명·박장훈·이창기*·이상영†

울산과학기술대학교,*한국생산기술연구원

([email protected]†)

Surface coverage-tunable, multifunctional conformal layer based on semi-interpenetrating polymer

network(semi-IPN) nanoarchitecture is presented as a new concept of interface engineering for lithium-ion

cathode materials. This unusual semi-IPN nanoarchitecture is composed of thermally-cured polyimide(PI) and

KIC News, Volume 17, No. 3, 2014

KIC News, Volume 17, No. 3, 2014 105

polyvinyl pyrrolidone(PVP) and also exhibits well-adjusted polarity matching with cathode materials (here,

LiCoO2(LCO) powders are chosen as a model system). This structural feature allows the PI/PVP semi-IPN

effectively suppresses direct exposure of LCO to liquid electrolytes. In addition, the presence of pyrrolidone ring

bearing Lewis basic site enables the PI/PVP semi-IPN nanoarchitecture to effectively trap hydrofluoric acid that

poses as a critical threat to trigger unwanted side reactions in cells. Owing to the aforementioned combined

effects, the PI/PVP semi-IPN significantly improves cell performance and thermal stability of high-voltage

charged LCO.

Keywords: semi-interpenetrating, high voltage, cathode, lithium ion battery

2P-299 Studies on electrochemical multivalent ion intercalation into the calcium ferrite type structure, XRu2O4

허종욱·홍승태†

DGIST

([email protected]†)

Multivalent ion intercalation is one of the good strategies to overcome capacity limit of LIB. However, only

a few materials have been reported for the electrode materials that can intercalate multivalent ions reversibly.

LiRu2O4 has been synthesized by ion exchange form NaRu2O4. LiRu2O4 is the calcium ferrite (CaFe2O4)-type

structure with one-dimensional tunnels. One dimensional Li array is placed inside these tunnels. It has been

reported that Li ion can be electrochemically intercalated into the LiRu2O4 along 1-d tunnel. Herein, Ru2O4

was synthesized by electrochemical Li ion extraction from LiRu2O4. Its electrochemical intercalation properties

of multivalent ions such as Mg2+ and Zn2+ have been characterized together with its structural changes.

Keywords: multivalent ion intercalation, crystallography

2P-310 Efficient organic dye composed of phenothiazine and carbazole chromophore for dye-sensitized solar cells

이치환·Le Quoc Bao·조효정*·강진규*·김재홍†

영남대학교 화학공학부,*대구경북과학기술원 차세대융복합연구센터

([email protected]†)

Organic dyes are suitable as photosensitizers for the Dye-sensitized Solar Cell (DSSC) because they have

many advantages, such as high molar extinction coefficients, convenience of customized molecular design for

desired photophysical and photochemical properties, inexpensiveness with no transition metals contained, and

environment-friendliness. This result suggests that smartly designed and synthesized metal-free organic dyes are

also highly competitive candidates for photosensitizers of DSSCs with their advantages mentioned above.

Organic photosensitizers based on carbazole and phenothiazine chromorphores with multi-acceptors/anchors

were synthesized and applied to DSSCs.

The judicious choice/design of the donor and acceptors permits the relatively high power conversion

efficiency in organic dye containing cyanoacrylic acid as the electron acceptor.

Keywords: organic dye, dye-sensitized solar cells

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2P-316다양한 energy donors와 energy acceptor를 이용한 forst type resonance energy transfer

system 개발과 이를 적용한 염료감응 형 태양전지

박지영·공정은·한윤수*·김재홍†

영남대학교 화학공학부,*대구가톨릭대학교 에너지신소재 공학부

([email protected]†)

염료감응형 태양전지(DSSCs)는 높은 태양에너지 전환 효율과 함께 제조 공정이 간단하며 단가가 저렴하여 많은 관

심을 모으고 있다. 광전변환 효율을 높이기 위해 나노 구조의 TiO2 및 신규 감광제 개발에 박차를 가하고 있으며, 최근

많은 효율 향상에 대한 보고가 이루어지고 있다. 본 연구에서는, 유기 형광물질을 광전극에 소량 첨가하여 광전변환

효율을 높이고자 하였다. TiO2 표면에 직접 유기 형광 염료를 흡착시킴으로써 형광체가 방출하는 형광을 염료가 여기광

으로 사용 할 수 있으며 이를 통하여 보다 효율적인 광전변환 효율을 기대할 수 있다. Forst Type Resonance Energy

Transfer (FRET) System을 적용한 염료감응형 태양전지에서 높은 광전변환 효율을 달성하기 위하여, 유기 형광체의

형광파장과 염료의 흡수파장 사이에 중첩이 커야 한다. 본 연구에서는 다양한 유기형광체 (Energy Donor)와 염료

(Energy Acceptor)를 적용하여 높은 효율의 FRET System을 개발하고 이를 염료감응형 태양전지 소자에 적용하였다.

Keywords: 염료감응형 태양전지, 유기형광체

[전기화학] 2P-339

Facile and gram-scale synthesis of graphitic carbon nitride materials with high electrocatalytic

activity for fuel cells

김옥희*,**·정동영*,**·김민정*,**·박지은*,**·유지문*,**·성영은*,**,†

*IBS 나노입자연구단,**서울대학교 화학생물공학부

([email protected]†)

A key issue in the commercialization of fuel cell technology is a replacing Pt-based catalyst with lower-cost,

non-precious metal catalysts. The recently developed cost effective and highly stable metal-free catalysts are

including nitrogen doped carbons, graphitic carbon nitride based hybrids, and 2D grapheme based materials.

Among them, graphitic carbon nitride has proven to be effective as catalyst for various applications such as

photocatalysis and fuel cells, because of it has higher nitrogen content and more active reaction sites than other

N-carbon materials to serve as a feasible metal-free ORR electrocatalyst. Here we report facile and

gram-scale production of graphitic carbon nitride-CNF hybrid composite, via a simple process without

high-pressure, high-temperature reactor. The resulting composite material exhibited competitive ORR catalytic

activity and stability compared to a commercial Pt/C catalyst.

Keywords: fuel cell, ORR, non-precious metal catalysts, carbon nitride

2P-342 Highly efficient propeller emitters based on phenanthrene moiety for organic light emitting diodes

강석우·이하윤·박영일*·박종욱†

가톨릭대학교,*한국화학연구원

([email protected]†)

We describe two blue emission materials based on a new type of mulit-chromophore concept.

TAnDAP, TAnPDAP were synthesized through boronylation and Suzuki coupling reactions. One of

multi-chromophore system derivatives, TAnDAP, exhibited an PLmax value of 421nm and The other material

KIC News, Volume 17, No. 3, 2014

KIC News, Volume 17, No. 3, 2014 107

TAnPDAP exhibited an PLmax 433nm in Solution.

The multi-chromophore materials had narrower PL in solution But broad PL spectra in Film and better

thermal properties than the single core chromophore materials.

Keywords: OLED

2P-353 Dye-sensitized solar cells with SiO2 spheres decorated with tightly assembled silver nanoparticles

최정우·강호만·경산·강진수·김진·이윤식·성영은†

서울대학교

([email protected]†)

We investigated the effects of localized surface plasmon resonance (LSPR) on the dye-sensitized solar cells

(DSSCs). SiO2 spheres decorated with tightly assembled silver nanoparticles (SiO2-t-Ag@SiO2) were

incorporated into the photoanode of a dye-sensitized solar cell. The photoanode thin films that contain tightly

assembled Ag nanoparticles showed higher light absorption and reflectance than thin film composed of only

TiO2. By blending 3 wt% of SiO2-t-Ag@SiO2 with TiO2 paste, the power conversion efficiency (η) increased

from 5.73% to 6.88%. This improvement was mainly due to a 17% increase in the short-circuit current density

(JSC), which was ascribable to plasmon-enhanced light absorption.

Keywords: dye-sensitized solar cell (DSSC), surface plasmonic resonance, silver nanoparticle, photoanode

2P-376 Simple size control of TiO2 nanoparticles and their electrochemical performance: emphasizing the contribution

of surface area to lithium storage at high-rates

엄지현*,**·임주현*·이진규*·성영은*,**,†

*Seoul National University,**Institute for Basic Science (IBS)

([email protected]†)

Titanium oxide (TiO2) has been regarded as one of the most promising alternative to the conventional

graphite for lithium ion batteries. In charging and discharging process, the volume change of TiO2 is less than

4% as Li+ ion inserted into the TiO2. Also, TiO2 electrode operates at higher voltages (1.5~1.8 V vs. Li+/Li)

than graphite electrode (~0.1 V vs. Li+/Li). Therefore, TiO2 has good capacity retention during cycling and

prevent the formation of a passive layer known as the SEI (solid electrolyte interface) layer. A series of anatase

TiO2 nanocrystals with different particle sizes (60, 150, and 300 nm) exhibited stable cycle performance. And,

the particle size dependence may be ascribed to the surface morphology in surface layer of TiO2 nanosized

particles.

Keywords: titanium oxide, particle size, anode, Li-ion batteries

[접착제도료잉크] 2P-412

adamantyl acrylate monomer 함량에 따른 pressure sensitive adhesive의 물성 변화

백승석·장세정·황석호†

단국대학교

([email protected]†)

Adamantane은 의자형 cyclohexane의 3분자가 조합된 구조의 3환식 탄화수소로 다이아몬드의 기본 중 하나이다.

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108 공업화학 전망, 제17권 제3호, 2014

투명하고, 결정성을 가지며, 내열성, 내마모성, 굴절률 등이 높은 분자구조이다. 본 연구에서는 adamantyl기를 포함한

acrylate와 2-EHA, 2-HEA 등의 3원 공중합체를 만들고 UV조사하여 PSA를 제조하여 점착력, 탄성, 굴절률 등의 물

성을 adamantyl acrylate 합량에 따른 변화를 관찰하였다.

Keywords: acrylate, PSA, peel strength, probe tack, adamantanes

[정밀화학] 1P-123

Synthesis of poly(phenanthrenequinone) as a conductive binder for high capacity negative electrodes

최성열·김명학·김남태·송욱상·이윤재·김상모·오승모·김영규†

서울대학교 화학생물공학부

([email protected]†)

Carbonaceous materials, typically graphite have been used for negative electrode of lithium-ion batteries

(LIBs) since Sony commercialized in 1991. But, expanding of LIB applications from portable electronic devices

to large scale system such as electric vehicles and energy storage for grids recently, many researches about the

electrode materials with higher capacity than graphite (372 mAh/g, theoretical) have been reported. One of the

tradeoff of high storage capacity materials such as Si and Sn, however, is their large-volume change during

cycles and this make it difficult to be commercialized. In order to overcome the problems, modification of

active materials or introduction of good polymer binders have been mostly considered. Here, we present new

conductive polymers based on phenanthrenequinone as a binder for Si anodes.

Keywords: phenanthrenequinone, binder, Li-ion battery, conductive polymer

1P-166 Crystallization of 1,1-diamino-2,2-dinitroethylene in binary mixture of N,N-dimethylacetamide with water

김재경·이은애·김현수*·구기갑†

서강대학교 화공생명공학과,*국방과학연구소

([email protected]†)

1,1-Diamino-2,2-dinitroethylene (DADNE) has been considered to be the promising energetic material

because of low friction and impact sensitivity than RDX, widely used as a military explosive. DADNE was

recorded the powerful detonation characteristics in spite of the same stoichiometric coefficient of RDX. In the

present study, we carried out the batch crystallization of DADNE in binary mixture of N,N-dimethylacetamide

(DMA) and H2O. Key operating parameters were cooling rate, solvent composition, and saturation temperature

to obtain the affordable properties improving packing density and mechanical strength of the DADNE particles.

Firstly, we polythermally measured the solubilities of DADNE in a different mass ratio of DMA and H2O at 20

~ 90 . Various experiments were conducted to find the optimal combinations of the crystallization

parameters to prepare DADNE particles with the average diameter of 5 to 30 micrometer.

Keywords: crystallization, 1,1-diamino-2,2-dinitroethylene, morphology

[정보전자⋅소재] 1P-196

White polymer light emitting diode materials introducing dendritic quinoxaline derivative

송호준·강주희·신교직·최경호·문두경*·이상국†

한국생산기술연구원,*건국대학교

KIC News, Volume 17, No. 3, 2014

KIC News, Volume 17, No. 3, 2014 109

([email protected]†)

White organic light-emitting diodes (WOLEDs) have attracted great attention recently due to their potential

applications in solid-state lighting and backlights for liquid crystal displays. In this study, dendritic quinoxaline

derivative was adopted as dopant with an orange emitter and PF as a host. To improve PL quantum yields and

aggregation of emitters, the dendritic quinoxaline derivative was introduced to the PF backbone. Polymer blends

were investigated and compared with electroluminecene and optical properties.

Keywords: fluorene, quinoxaline, dendron, WPLED

1P-218 Synthesis of carbazole and phosphine oxide derivative as a host material for deep blue

phosphorescent organic light-emitting diodes

김명곤·이준엽†

단국대학교

([email protected]†)

A high triplet energy of bipolar host material with substituent at 3-position of carbazole was simply

synthesized as one step. Phenylbis(9-phenyl-9H-carbazol-3-yl)phosphine oxide (3DCPO) showed a high

triplet energy of 3.01eV, which was high enough for deep blue phosphorescent organic light-emitting diodes.

The 3DCPO host material showed high thermal stability(Tg, 133 ), low turn on voltage(3.5V), and high

external quantum efficiency of 18.8% at 3% doping concentration.

Keywords: oled, deep blue, phosphorescent, host

1P-221 Highyl efficient white OLEDs using dual core chromophore

양가람·신환규·박종욱†

가톨릭대학교

([email protected]†)

Two different emitting compound, 1-[1,1';3',1"]Terpenyl-5'-yl-6-(10-[1,1';3',1"]terphenyl-5'-yl-anthracene

-9-yl)-pyrene (TP-AP-TP)and Poly-phenylene vinylene derivative(PDY 132)were used to white OLED

device. By incorporating adjacent blue and yellow emitting layers ina multi-layered structure, highly efficient

white emission has been attained. The device was fabricated with a hybrid configuration structure :

ITO/PEDOT(40nm)/PDY-132(8~50nm)/NPB(10nm)/TP-AP-TP(30nm)/Alq3(20nm)/LiF(1nm)/Al(200nm). After

fixing TP-AP-TP thickness of 30nm by evaporation, PDY-132 thickness varied with 8, 15, 35, and 50nm by

spin coating in device. The luminance efficiency of the white devices at 10mA/cm2 were 2.93 cd/A~6.55 cd/A.

One of white devices showed 6.55cd/A and white color of (0.290, 0.331).

Keywords: OLED, white, solution process, dual core chromophore, PDY-132

1P-223 Highly efficient deep-blue phosphorescent organic light-emitting diodes (OLEDs)

이지은·강영진†·류연진·이종원·김진호·오한국·오시현

강원대학교

([email protected]†)

We have developed a series of deep-blue phosphorescent Ir(III) complexes. These molecules have the general

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110 공업화학 전망, 제17권 제3호, 2014

formula of Ir(C^N)2(L^X) where C^N = 2',6'-difluoro-2,3'-bipyridine (dfpypy), and L^X = ancillary ligand such

as acetylacetonate, acac (2) or dipivaloylmethanoate, dpm (3). a optimized condition using mCP or mCPPO1 as

host and TSPO1 as a hole blocking and electron transporting material was developed for efficient blue

PhOLEDs of the following structure: ITO/PEDOT:PSS/TAPC/mCP/ mCP:x%-2 and 3/TSPO1/LiF/ Al. The

device of compound 2 doped into mCP host at the doping level of 3 wt% has the best performance with EQE

of 20% at the brightness of 100 cd/m2 and the maximum current efficiency of 25.3 cd/A(CIE, x=0.14, y=0.18).

Keywords: OLEDs, blue phosphorescence, iridium

1P-250 Carbazole 기반의 Dimesitylboryl 유도체의 Green PHOLED용 host 물질 합성 및 전기-광학적 특성 평가

장홍구·황석호†

단국대학교

([email protected]†)

최근 OLED (Organic Light Emitting Diode) 재료에 대하여 높은 양자 효율과 낮은 구동 전압에 대해 활발히 연구

되고 있다. 특히, Carbazole 유도체가 높은 삼중항 에너지와 우수한 정공 이동 특성에 의해 광범위하게 사용되고 있다.

그리하여 본 연구에서는 전자결핍 특성을 지닌 dimesitylboron unit을 phenyl-carbazole에 도입한 유도체 3-(dimesitylboryl)

-9-phenyl-9H-carbazole(3DBPC) 그리고 9-(4-(dimesitylboryl)phenyl)-9H-carbazole(9-4DBPC)을 합성하였

다. 합성된 화합물의 화학적 구조는 1H-NMR, 13C-NMR 그리고 Mass-spectroscopy에 의해 확인하였다. 전기-광학

적 특성은 UV-vis spectroscopy, Cyclic-voltammetry 그리고 Photoluminescence에 의해 확인하였다. 합성한 재료

를 이용해 PHOLED device에 host물질로 적용하여 제작하였으며 물질에 대한 electro-optical performance를 평가

하였다.

Keywords: OLED, carbazole, dimesitylborane

[촉매] 1P-259

서로 다른 중심원소를 가지는 Keggin형 헤테로폴리산의 산화환원 특성에 관한 연구

최정호·강태훈·방용주·송인규†

서울대학교

([email protected]†)

헤테로폴리산은 뛰어난 산 및 산화환원 특성으로 인해 다양한 산 및 산화환원 반응에서 촉매로 사용되어져 왔다. 헤

테로폴리산의 물리화학적 특성은 구조 및 구성원소의 조성에 따라 매우 다양한 분포를 가지는 것으로 알려져 있으며

특히, 산화환원 특성은 산화환원 반응에서의 반응성과도 접한 관련이 있는 것으로 보고되고 있다. 본 연구에서는 중

심원소가 헤테로폴리산의 산화환원 특성에 미치는 영향을 확인하고자 서로 다른 중심원소가 치환된 Keggin형 헤테로

폴리산을 제조하고 그들의 산화환원 특성을 순환전류전압법 및 자외선-가시광선 분광법을 통해 분석하였다. 최종적으

로 헤테로폴리산을 이용하여 산화반응을 수행하였다(본 연구는 중견연구자지원 사업에 의한 한국연구재단의 지원에

의해 수행되었다: 2012-R1A2A4A01001146).

Keywords: 헤테로폴리산, 중심금속, 산화환원

1P-277 Methane synthesis from photoreduction of CO2 with H2O on a spherical Ni-doped TiO2 catalysts

곽병섭·강소라·임영환·이호정·박덕영·강미숙†

영남대학교

KIC News, Volume 17, No. 3, 2014

KIC News, Volume 17, No. 3, 2014 111

([email protected]†)

최근 화석연료의 사용은 에너지 고갈과 지구온난화와 같은 문제를 일으킬 뿐만 아니라 이산화탄소 또한 증가시킨다.

이런 문제를 해결하기 위하여 많은 대체에너지 연구가 진행되고 있다. 그중 CO2 환원은 CO2 농도를 줄여 지구온난화

를 완화시키면서 메탄과 같은 에너지원을 생성한다는 점에서 주목할 만한 가치가 있다. 본 연구에서는 spherical Ni를

합성하고 그 표면에 티타니아를 입힘으로서 여기된 전자와 홀의 재결합을 줄이도록 시도하였다. 합성된 spherical Ni은

X-ray diffraction으로 결정을 확인하였고, SEM 이미지를 통해 구형의 입자를 관찰하였다. 촉매활성은 CO2와 H2O를

촉매와 함께 광반응기 내부에 주입한 상태에서 실시하였다. 실험 결과 spherical Ni이 첨가된 촉매에서 메탄생성이

0.35μmol/gcath, 티타니아 촉매는 0.30.35μmol/gcath으로 개선된 활성을 보인다는 것을 확인하였다.

Keywords: photoreduction, CO2, CH4

1P-280 Reaction characteristics of mesoporous SAPO-34 Prepared with dual templates in DTO Process

최기환·이동희·김효섭·박주식*·김영호†

충남대학교,*한국에너지기술연구원

([email protected]†)

유기 주형물질(TEAOH, DEA)과 CNT 주형물질을 함께 이용하여 메조세공 SAPO-34 촉매를 성공적으로 합성하였

다. CNT 첨가량에 따른 촉매의 물리·화학적 특성을 X-선 회절 분석(XRD), 주사 전자 현미경(SEM), 질소 흡탈착 등

온선 및 암모니아 승온 탈착(NH3-TPD)을 통해 확인하였다. CNT가 첨가된 SAPO-34는 우수한 메조세공 특성이 관

찰되었으나, CNT가 과량 첨가된 경우 판 형상으로 결정이 성장되었으며 상대적으로 낮은 메조세공 특성을 보였다.

합성된 메조세공 SAPO-34 촉매를 이용하여 dimethyl ether(DME)의 올레핀 전환반응(DTO)을 수행하였고, 메조세공

이 DME의 전환율, 촉매수명, 경질 올레핀 선택도에 미치는 영향을 연구하였다.

Keywords: DTO(dimethyl ether to olefins), mesoporous SAPO-34, CNT(carbon nanotube), dual template, Light

olefins

1P-313 Synthesis of mesoporous tungsten oxide with different annealing temperatures and their

applications for oxidative desulfurization

이정화·김지만†

성균관대학교

([email protected]†)

A series of mesoporous tungsten oxides were synthesized by using nano-replication method via mesoporous

silica KIT-6 as a hard template with different annealing temperatures.The synthesized mesoporous tungsten

oxides were well-characterized by X-ray diffraction (XRD), N2–adsorption, Scanning electron microscope (SEM),

H2-TPR and Raman spectroscopy. The catalytic activities of mesoporous WOx which were calcinated at

different temperatures for the oxidative desulfurization of dibenzothiophene (DBT) in model oil were

investigated under atmospheric pressure at 50oC. The results showed that the catalytic activity was increased in

the order: WOx(400 ) ≥ WOx(500 ) ≥ WOx(600 ) > WOx(300 ) > WOx(200). Mesoporous WOx was

also investigated to be used for catalytic oxidation of sulfur-containing molecules in model oil under different

reaction conditions (different desulfurization systems, H2O2/S molar ratio and different sulfur-containing

compounds).

Keywords: mesoporous tungsten oxide, oxidative desulfurization

http://www.ksiec.or.kr

112 공업화학 전망, 제17권 제3호, 2014

1P-315 Key catalyst descriptors of Cu/ZnO/ZrO2 on the hydrogenolysis of butylbutyrate

정천우·김태우·서영웅†

한양대학교

([email protected]†)

Cu/ZnO 촉매는 메탄올 합성반응, WGS 반응에 사용되어 왔지만 산업적으로 사용되기 위해서는 지지체가 반드시 필

요로 하는데, Cu 표면적을 향상시키기 위하여 Cu/ZnO/Al2O3 촉매가 주요 연구대상이었다. 최근 Al2O3 뿐만아니라

ZrO2을 사용하여 활성을 증진시킬 수 있다는 결과가 발표되고 있다. 이에 본 연구에서는 ZrO2가 Cu/ZnO에 미치는 효

과를 알아 보기 위해서 역공침법을 이용하여 다양한 ZrO2의 비율과 Cu/Zn의 비율을 가지는 Cu/ZnO/ZrO2 촉매를 합

성하였다. 제조한 촉매는 XRD 분석을 통해 precursor catalyst와 calcined catalyst의 결정구조를 확인하였고, 소성한

촉매는 TPR분석을 통해 환원 특성을 비교하였다. 그리고 N2O-chemisorption 분석을 통하여 구리 표면적을 측정하였

으며, 연속식 고정층 반응기를 이용하여 butylbutyrate 수첨분해반응을 통한 부탄올 생성반응에서 제조한 촉매의 활성

을 평가하였다.

Keywords: Cu/ZnO, Cu/ZnO/ZrO2, N2O chemisorption

1P-321 In Line N2 Purification System용 Pellet형 Cu 촉매 제조 및 특성 연구

오승교·성민준·정은아·정관형·권지선·전종기†

공주대학교

([email protected]†)

본 연구의 목적은 In Line N2 Purification System에 사용하기 위한 산소 제거용 Pellet형 Cu촉매를 개발하는 것이

다. 공침법을 사용하여 Cu계 2성분 - 4성분 계의 촉매를 제조하고, BET표면적, X-diffraction, TPR등을 사용하여 촉

매의 특성을 분석하였다. 고정층 연속식 반응기에서 산소제거 실험을 수행하여, 촉매의 최적 성분을 선정하였다.

Scale-up 연구를 위하여 압출기를 사용하여 pellet형 촉매 시제품을 대량으로 제조하였다. 비활성화된 촉매의

regeneration실험을 반복적으로 수행하여 촉매의 재사용 가능성을 확인하였고, 장시간 반응 실험을 통해서 산소제거능

력이 우수함을 확인하였다.

Keywords: Cu계 촉매, 산소 제거

[콜로이드⋅계면화학] 2P-418

W/O제형에서 폴리올을 사용한 ascorbic acid의 안정화 연구

김세희·이태규†

연세대학교

([email protected]†)

화장품 산업의 발전과 함께 유효성분의 피부흡수율을 높이기 위한 많은 연구가 진행되고 있다. 유효성분 중 피부 노

화를 방지하고, 자외선으로부터 피부의 손상을 막아주며 미백 기능을 가진 Ascorbic acid는 매우 유용한 인체효능소재

이다. 하지만 열, 빛, 공기 등 주변환경에 의해 쉽게 산화되어 저장성이 떨어지고 화장품 소재로 사용하였을 때도 효과

적으로 피부에 작용하지 못한다. 따라서 본 연구에서는 열, 빛, 공기로부터 Ascorbic acid의 산화를 막거나 지연하고자

한다. Ascorbic acid는 수용성 물질로서 solvent로 정제수 대신 폴리올(글리세린, 부틸렌글라이콜, 프로필렌글라이콜

등)을 사용하고 열에 대한 산화를 방지하기 위해 실온공정에서도 크림제형을 만들 수 있는 W/O 유화법을 사용하였으

며 온도, 시간에 따른 ascorbic acid의 안정화 정도를 확인하기 위하여 HPLC 분석을 실시하였다.

Keywords: ascorbic acid, 안정화

KIC News, Volume 17, No. 3, 2014

KIC News, Volume 17, No. 3, 2014 113

2P-435 Integrated bioactive hydrogel with microchanneled poly(vinylidene fluoride) (PVDF) membrane

조성우·조윤나·이솔이·김희진·정재현†

숭실대학교

([email protected]†)

Stimulus responsive hydrogels present the potential to exhibit reversible volumetric changes in response to

external stimuli including pH, electric current, temperature and ionic strength. Therefore, these hydrogels have

been studied for various applications including controlled drug delivery, tissue engineering, microscale actuators

and microfluidic flow control. This study demonstrates that a new method to align and control spatial

organization of bioactive hydrogel into microchannels of a poly(vinylidene fluoride) membrane and guide growth

direction and spacing of living cells. This integrated bioactive hydrogel system was prepared by fabricating a

micro-channeled PVDF membranes and subsequently filling micro-channels with a hydrogel of chemically

active methacrylic alginate. We believe that the integrated bioactive hydrogel membrane developed in this study

will be highly useful for a broad array of drug delivery carriers in varied applications.

Keywords: stimulus responive hydogel, poly(vinylidene fluoride)

[펄프⋅제지⋅피혁] 1P-346

디스크 리파이너 바 패턴에 따른 리파이닝 특성 연구

이경선·김철환†·이지영·조후승·임수진·이지영·남혜경

경상대학교 임산공학과 농업생명과학연구원

([email protected]†)

Refiner bar plate 및 Conical bar plate의 수명은 2∼6개월 정도이며, 부품 정비 작업 시 교체비용이 추가로 소요

되고 10시간 이상 설비가동을 중단해야 하는 점을 고려할 때 bar plate를 시급하게 국산화 개발하는 것이 필요하며 이

를 통해 수입대체 효과와 역수출을 기대 할 수 있다. 지금까지 국내 일부 업체가 국산화를 시도했으나 바의 각도와 바

폭의 균일성, 직각도, 내마모성 기준 등을 맞출 수 없어 개발에 실패했으며 현재 판매 중인 제품들은 내구연한이 너무

짧아 제지업체의 비용 상승을 초래할 뿐만 아니라 펄프의 해섬 효율 저하를 초래하고 있을 뿐만 아니라 국산 해섬기

바 원판(Bar Refiner Disc)의 부재로 인해 고가의 수입산 제품을 사용 하고 있어 원가 상승과 외화 유출 등의 악순환이

지속되고 있다.

본 연구에서는 수입산 refiner bar plate에 준하는 고해 결과를 얻을 수 있도록 바 패턴을 설계 및 제작하여 국내 제

지업체의 원가절감에 기여하고자 하였다.

Keywords: refiner, refiner bar plate, double disk refiner, tmp refiner, conical refiner

1P-362 리그노셀룰로오스 효소당화를 위한 이온성액체/N,N-dimethylacetamide (DMAc) 혼합용매 전처리

한송이·김보연·이승환†

강원대학교 산림환경과학대학 산림바이오소재공학과

([email protected]†)

최근 유가 상승으로 다양한 원유 유래물질들을 바이오리파이너리(biorefinery)를 통해 대체하려는 연구가 전 세계적

으로 이뤄지고 있다. 생물공학적, 화학적 기술을 활용하여 바이오매스를 원료로 한 화학제품 및 바이오연료를 고효율

적으로 생산하기 위하여는, 바이오매스 원료의 획기적인 전처리 방법 개발이 요구되고 있다. 본 연구에서는 최근

green chemistry분야에서 주목받고 있는 이온성액체와 셀룰로오스 팽윤용매인 DMAc를 혼합한 복합용매를 사용하여,

http://www.ksiec.or.kr

114 공업화학 전망, 제17권 제3호, 2014

리그노셀룰로오스의 효소당화 효율에 미치는 영향을 조사하였다. 혼합 비율, 시간, 온도에 따른 효소당화율을 조사하

여, 최적의 전처리 조건을 도출하였다.

사사

본 연구는 2013년도 한국연구재단 기초연구사업 (No. NRF-2013R1A1A4A01005013)과 산림청 ‘산림과학기술개

발사업(과제번호 : S211313L010110)의 지원에 의하여 이루어진 것임.

Keywords: 효소당화, 이온성액체, 리그노셀룰로오스

1P-372 안료 배합이 백판지 표면물성에 미치는 영향

홍성호†·이용규·김선구·원종명

강원대학교

([email protected]†)

최근 고품질의 새로운 도공지 및 도공판지의 개발 및 원가 절감에 관한 연구가 활발히 진행되는 가운데 도공용안료

는 종이 품질에 있어서 중요한 역할을 담당하고 있다. 또한, 뛰어난 표면특성을 갖는것이 종이 품질에 있어 중요하다.

종종 표면특성을 높이기 위해 고가의 안료를 사용한다.

본 연구에서는 도공액 배합에 있어서 안료 자체의 가치를 이해하여 어떤 안료 특성이 도공층 구조와 도공지 성능에

어떠한 영향을 미치는지를 구명하고 저가 안료를 적용한 새로운 도공액 배합비를 도출하여 도공지 및 도공판지의 표면

특성을 향상시키고 원가절감 효과를 발현하고자 한다.

Keywords: optical property, coating pigment, printability

1P-401 화학적 보강 처리를 통한 노화 죽지의 강도 개선

이혜윤·윤혜정†·김민수·이제곤·심규정·안정언

서울대학교 산림과학부

([email protected]†)

대나무 섬유로 이루어진 지류 자료는 한지로 제작된 문서에 비해 더 노화되거나 손상된 상태를 보인다. 이러한 지류

자료를 보존하기 위해서는 열화된 종이의 적절한 강도보강처리가 이루어져야 한다. 국내외적으로 노화가 진행된 종이

에 화학적 보강 약품을 이용하여 강도 보강연구를 진행하여 강도 개선 효과를 확인한 바 있다. 따라서 본 연구에서는

대나무 섬유로 이루어진 죽지의 노화 상태를 달리한 후, 화학적 보강 처리를 이용하여 노화 종이의 강도 특성과 재노화

양상을 평가하고 적절한 보강처리 방법을 찾고자 하였다.

Keywords: 대나무 섬유, 종이 노화, 강도 보강, 종이 보존

1P-406 외부 온·습도 변화가 보존상자 내 종이 기록물 열화에 미치는 영향

정소윤·박미선·황지현·김형진†

국민대학교

([email protected]†)

기록물관리법 제정 이후 종이 기록물의 보관 필요성이 증대됨에 따라 기록물의 양 또한 증가하고 있다. 기록물은 대

부분 보존서고 내에 보관되며 온·습도에 민감하게 반응하는 종이기록물이 대부분이다. 외부의 온·습도 변화로부터

종이기록물을 보호하기 위하여 보존상자의 사용이 증가하고 있으며 이에 따른 연구가 활발히 진행되고 있다. 그러나

보존상자 내부의 종이 기록물 보존 상태에 대한 연구는 아직 미흡한 실정이다. 따라서 본 연구에서는 보존상자 외부

온·습도 변화에 따른 내부의 종이기록물 열화 거동을 분석하고 이를 토대로 종이 기록물 장기 보존 관리를 위한 기초

KIC News, Volume 17, No. 3, 2014

KIC News, Volume 17, No. 3, 2014 115

연구 자료로 활용하고자 하였다.

Keywords: corrugated boxboard, archives, accelerated aging, temperature

1P-414 전처리된 섬유소 분자량에 따른 에어로겔 특성

심은비·이신아·양봉숙·정명준·강규영†

동국대학교 바이오시스템대학 바이오환경과학과

([email protected]†)

목질 섬유소의 분자량과 잔존 헤미셀룰로오스 함량이 최종 에어로겔을 제조하는데 있어 미치는 영향을 평가하고자

했다. 우선 전처리를 통하여 다양한 분자량의 목질 섬유소를 제조 하였으며 이렇게 제조된 목질섬유소를

ethylenediamine을 이용하여 헤미셀룰로오스의 함량을 조절하였다. 각각의 시료는 LiCl/DMAc 용액을 이용하여 용액

화 한 후 최종적으로 동결건조를 통하여 에어로겔을 제조하였다. 제조된 에어로겔은 주사전자현미경을 통하여 분자량

에 따른 미세 구조 특성을 비교 분석하였다.

<사사> 본 연구는 산림청 ‘산림과학기술개발사업(과제번호 : S111313L010130)’의 지원에 의하여 이루어진 것입

니다.

Keywords: 전처리, 섬유소, 에어로겔, LiCl/DMAc, 분자량

[화학공정] 1P-432

Optimization of thermoelectric module process with Ni plating using finite element analysis

백규동·정재학†

영남대학교

([email protected]†)

국내·외 적으로 현재 열전모듈 시장은 상온용 모듈의 출력 효율과 안정성을 향상 시켜 제품의 경쟁력을 높이기 위

해 노력 중이다. 따라서 발전용과 냉각용 열전모듈의 제작 기술의 중요성 역시 대두 되고 있다.

이러한 이유로 본 연구에서는 열전재료인 Bi2Te2의 열전도율 및 저항률, 제벡 계수 등과 같은 물질특성을 가지고 도

금 재료의 두께 조건에 따라 변하는 전도성 및 발전성능을 확인하였고, 온도 조건에 따라 기판(substrate)과 도금된 소

자간의 열 응력(thermal stress)변화를 유한요소해석(Finite Element Analysis, FEA)을 통해 열전모듈의 최적화된 도금

조건을 도출하였다.

Keywords: thermoelectric module, finite element analysis, plating

[환경⋅에너지] 1P-576 백금담지 메조세공체 CMK-3 촉매를 이용한 에틸렌글리콜의 수상개질반응에 관한 세공크기 조절에 관한 영향

양윤철·김민철·김정랑·김태완·채호정·정순용·김철웅†

한국화학연구원

([email protected]†)

수상개질 (APR, aqueous phase reforming) 반응은 개질반응과 수성가스 전환반응이 반응기 내에서 동시에 일어나

는 반응으로 저온에서 바이오매스를 수소와 액상연료로 직접 전환하는 기술로 알려져 있다. APR 반응의 경우, 반응

시 부반응을 최대한 억제하여 수소만을 최대로 생산하는 최적조건을 찾는 다양한 연구가 이루어지고 있다.

이러한 APR 반응에 주요 변수로는 금속 활성, 촉매 담체, 반응물의 종류 등이 알려져 있는데, 본 연구에서는 촉매담

체로 CMK-3 제조시 실리카 벽면 두께를 조절하여 다양한 세공크기를 가지는 메조포러스 카본을 제조하여 APR 반응

http://www.ksiec.or.kr

116 공업화학 전망, 제17권 제3호, 2014

에 적용하였다. 즉, 실리카 소스인 SBA-15를 사용하여 메조포러스 실리카 내부에 boric acid와 sucrose를 적절히 첨

가하여, 고온의 질소분위기에서 상분리를 통한 방법을 이용하여 세공크기를 조절하여 CMK-3을 제조하였으며, 여기

에 Pt 금속을 담지하여 촉매를 제조 한 후 APR 반응에 관한 다양한 세공을 가진 CMK-3 카본지지체의 종류 및 세공

크기의 영향을 고찰하였다.

Keywords: APR(aqueous phase reforming), pore size, CMK-3-BA, Pt

1P-579 에탄올로부터 방향족화합물 생산을 위한 mirco-shperical 성형촉매개발

김주완·김철웅†·정순용·채호정·김태완·김정랑

한국화학연구원

([email protected]†)

방향족화합물은 석유화학 및 폴리머 산업에서 가장 중요한 원료중 하나이다. 방향족화합물 생산을 위한 일반적인 공

정은 대부분 원유를 사용하는 리포밍, 크래킹 또는 알킬화와 같은 석유화학공정에 기반을 둔다. 원유소비의 증가로 인

한 가격상승 및 매장량 감소로 인하여, 기존 공정으로부터 방향족화합물, 특히, BTX를 생산하기 위환 새로운 공정개발

이 요구되고있다. 본 연구에서는 유동층 반응기에 적용가능한 ETA용 성형촉매의 제조 및 물성에 대한 특성분석과 반

응 활성실험을 통해 BTX 수율을 높일수있는 최적조건을 알아보고자 하였다.

Keywords: ETA, spray-drying, fluidized-bed, micro-spherical, ZSM-5

1P-582 동애등에를 이용한 대량음식물 쓰레기 친환경 처리 자동화시스템

이유석·전태영·김태훈·김재용†

충북대학교

([email protected]†)

런던협약으로 인하여 2013년부터 음식물쓰레기의 해양투기가 금지되어 매일 발생되는 음식물쓰레기의 처리에 많은

문제점이 발생하고 있다. 이러한 음식물쓰레기 처리를 위한 다양한 해결책이 제시되고 있는데 그 중 음식물 쓰레기 처

리능력이 뛰어나고, 환경친화성을 가진 동애등에가 주목 받고 있다. 본 연구에서는 동애등에를 이용한 대량의 음식물

쓰레기 자원화시 처리효율을 개선하고 보완할 방법을 조사하였다.

Keywords: 동애등에, 음식물쓰레기, 퇴비화, 사료화

1P-606 수분이 함유된 부탄올 탈수반응을 통한 부텐 제조용 촉매 연구

김현아·최현희·정은아·전종기†

공주대학교

([email protected]†)

화학산업의 원료 다변화 및 지속가능한 발전을 위해 바이오리파이너리가 필요하게 되면서, 바이오부탄올 기술이 진

보하고 확대되고 있는 추세이다. 수분이 함유된 2-부탄올의 탈수반응을 통하여 수요가 많은 이소부텐과 1-부텐을 제

조하는 것이 이 연구의 목표이다. 이 연구에서는 MMZ-FER촉매를 이용하여, 수분함량에 따른 2-부탄올 탈수반응에

대해 연구하였다. 촉매 특성 분석 방법은 BET, Ammonia-TPD, Pyridine-IR, XRD 등을 이용하였고, 120시간의 장

시간 탈수반응을 통하여 수분함량에 따른 2-부탄올의 전환율, 1-부텐에 대한 선택도, 수율 등을 분석하였다.

Keywords: 2-butanol, 1-butene, dehydration, water, MMZ-FER

KIC News, Volume 17, No. 3, 2014

KIC News, Volume 17, No. 3, 2014 117

1P-612 Electromagnetic interference shielding effectiveness of direct grown-CNTs/carbon fiber and

glass fiber hybrid fillers-reinforced epoxy matrix composites

한웅*·박성범*,**·김원석*·안계혁*·김병주*,†

*한국탄소융합기술원 연구개발본부,**전주대학교 탄소융합공학과

([email protected]†)

In this work, the electromagnetic interference shielding effectiveness (EMI-SE) of direct grown-CNTs-carbon

fiber fillers and direct-grown CNTs-glass fibers fillers-reinforced composites were investigated. Each hybrid

filler was prepared by a CVD technique and epoxy resin was used as a matrix. The morphologies and structural

properties of the CNT-CF/ or GF fillers were measured by SEM and XRD. The EMI-SE of hybrid fillers/epoxy

matrix composites was evaluated by means of the reflection and adsorption method. From the results, it was

found that the EMI-SE of composites enhanced with increasing CNTs content. These results indicate that the

content of CNTs determine the electric networks in the composites, resulting in the control of the EMI-SE of

the composites.

Keywords: EMI-SE, carbon nanotube, electric networks, hybrid fillers

1P-637 Ion permselectivity of poly(vinylimidazole-co-trifluoroethylmethacrylate-co-divinylbenzene)

anion-exchange membrane for removal of nitrate

오창민·황택성†

충남대학교

([email protected]†)

The vinylimidazole(VI)-co-trifluoroethylmethacrylate(TFEMA)-co-divinylbenzene(DVB) copolymer was synthesized

using by the solution polymerization. The copolymer was functionalized with such as 1bromo-2-methylpropane,

1bromobutane, 1bromo-3-methylbutnae, 1brmopentane and QPVTD anion exchange membranes were

prepared by the casting method. The chemical structure of the membrane was confirmed by FT-IR, 1H-NMR

spectroscopy. The membrane properties such as water content, ion exchange capacity, electrical resistance and

ion permselectivity for nitrate were measured. The maximum water uptake, electrical resistance and ion

exchange capacity were 60.85%, 8.0Ω/cm2 and 1.25meq/g dry respectively.

Keywords: quaterization, nitrate, ion permselectivity, anion exchange membrane

1P-639 TEOS를 이용한 SiO2/Fe2O3/TiO2/FTO코팅막 제조

노을·김선재†·정상철*·윤강섭·양현우·전나현·정희준

세종대학교 나노신소재공학과,*순천대학교 환경공학과

([email protected]†)

PEC 시스템은 영구적인 에너지원인 태양광을 이용해 물로부터 부산물없이 수소를 생산할 수 있기 때문에 지속적으

로 대체 에너지원을 제공할 수 있다. 이 때문에 고효율을 갖는 광전극 제조를 위해 많은 연구들이 활발히 진행중이다.

TiO2는 주로 자외선 영역의 빛을 흡수하고 작은 양의 가시광 영역의 빛을 흡수할수 있으며 광전기화학적 안정성, 비독

성, 저렴한 제조비용 등의 이점때문에 광전극을 위한 연구에 이용되어지고있다. 본 연구팀에서는 PEC용 광전극을 위

한 Fe2O3/TiO2/FTO 나노촉매 코팅층을 제조하였고 Fe2O3의 낮은 전도성을 개선하기 위한 방법으로 TEOS를 층위에

담지하여 복합층을 형성하였다. TEOS와 ethanol을 혼합하여 담지하고 500에서 10분간 열처리 한

http://www.ksiec.or.kr

118 공업화학 전망, 제17권 제3호, 2014

SiO2/Fe2O3/TiO2/FTO 막들은 기존의 Fe2O3/TiO2/FTO 막보다 낮은 onset voltage를 나타내었다. 다른 열처리 과정을

통해 제조된 두 가지 SiO2/Fe2O3/TiO2/FTO 막 모두에서 0.75 V를 onset voltage로 갖는 Fe2O3/TiO2/FTO막과 달리

0 V에서부터 인가된 전압에 따라 current의 증가가 일어나는 특성을 나타내었다.

Keywords: PEC, TEOS, Si, Fe

1P-651 질소원으로 질산암모늄을 사용한 BFDFO에서의 해수담수화 특성

이진희·김승건·정남조*·김동국*·이호원†

제주대학교,*한국에너지기술연구원

([email protected]†)

정삼투(forward osmosis)는 반투막을 사이에 두고 해수와 해수보다 삼투압이 높은 용액(유도용액)을 각각 유입시켜

두 용액간의 삼투압 차에 의해 해수중의 순수를 유도용액(draw solution)으로 이동하도록 하는 공정이다. 정삼투공정

은 역삼투공정에 비해 고압이 불필요하여 에너지 비용이 크게 절감되고 막오염도 현저하게 적게 발생된다. 그러나 정

삼투 공정을 이용하여 해수로부터 담수를 계속적으로 생산하기 위해서는 희석된 유도용액에서 유도용질을 분리 및 회

수하는 공정이 필요하다. BFDFO (blended fertilizer-driven forward osmosis)에서는 유도용액으로 고농도 혼합비료

를 사용하여 해수담수화를 하고, 이때의 생산수(희석된 유도용액)는 별도의 분리공정 없이 액비(또는 액적시비)로 사용

하는 기술이다. 본 연구에서는 정삼투 공정의 유도용액(draw solution)으로서 질산암모늄을 포함한 혼합비료를 사용하

였다. 질산암모늄을 포함한 혼합비료의 종류, 농도 및 유량 변화에 따른 수투과선속(permeate flux), PR (performance

ratio) 및 역용질선속(reverse solute flux)을 측정하여 BFDFO에 의한 해수담수화 특성을 연구하였다.

Keywords: 해수담수화, 질산암모늄, 혼합비료, 정삼투

2P-535 DME synthesis from syngas on Cu-ZnO-Al2O3/alumina prepared from aluminum and carbon black composites

함형원·정민혜·이영후·배종욱†

성균관대학교

([email protected]†)

Dimethyl ether (DME), which has similar physical properties with LPG, is one of the attractive alternative fuel

because of a lower emission of air-pollutants than that of the traditional diesel fuel. The direct synthesis of

DME from syngas was investigated on Cu-ZnO-Al2O3 catalyst composited with the alumina, which was

previously synthesized by the co-precipitation method using aluminum nitrate precursor and carbon black at a

different Al/carbon black ratio. Solid-acid component of alumina was obtained by calcining the composite of

aluminum precursor and carbon black. The active sites for hydrogenation of CO was prepared by using copper

nitrate, zinc acetate and aluminum nitrate with a molar ratio of Cu/ZnO/Al2O3 = 6/2/1, and a weight ratio of

Cu/Al2O3 = 1.4. At an optimum composite of Al/carbon black ratio, the surface area of the as-prepared

Cu-ZnO-Al2O3/alumina was maximized and the maximum catalytic activity was obtained due to its higher

surface area of metallic copper and larger amount of acid sites. The hybrid catalysts were characterized by TPR,

NH3-TPD, XRD, and BET and so on.

Keywords: dimethyl ether; syngas; Cu-ZnO-Al2O3

2P-577 The character and fuel cell performance of sGO/sPAES composite membrane for unitized

regenerative fuel cells(URFCs)

KIC News, Volume 17, No. 3, 2014

KIC News, Volume 17, No. 3, 2014 119

김민우·정호영†·조민선·김건주·신동석

전남대학교

([email protected]†)

The composite membranes based on sulfonated graphene oxide (sGO) / sulfonated poly(arylene ether sulfone)

(sPAES) were fabricated for the unitized regenerative fuel cells(URFCs). Due to the incorporation of sGO, the

number of sulfuric acid functional groups (-SO3H) were increased in the composite membranes. So composite

membrane shows highly phase-separated morphology in the AFM image, which influence on the proton

conductivity and water uptake. Additionally, the performance of URFC using a sGO/sPAES membrane was

confirmed in the unit cell test fixture.

Keywords: composite membrane, URFCs, sGO, sPAES

2P-609 합성물 분리기술을 통한 ADN 순도 및 수율 향상연구

김우람·권윤자·조영민†·박영철*

경희대학교,*국방과학연구소

([email protected]†)

고발열량의 고체 추진제인 ADN(Ammonium dinitramide)은 낮은 합성수율로 인하여 그 활용성이 제한적인 현실이

다. 따라서 본 연구에서는 중간생성물을 추출하지 않는 직접합성법을 적용하여 합성수율을 52%까지 증가시키고, 합성

ADN고체입자의 순도를 99.8% 이상까지 향상시킬 수 있는 정제기술을 시험하였다. 고순도 발연질산과 직접 제조한

술팜산(potassium sulfamate)을 이용하고, 간결한 합성공정을 채택함으로써 수율과 순도를 동시에 향상시키고자 하였

다. 이때, 부생성물인 K2SO4나 질산이온(NO3-)의 형성을 최대한 억제하고, 고체상 ADN을 추출함에 있어서 다단계 복

합용매 분리기술을 적용함으로써 순도를 크게 향상시킬 수 있었다. 추가적으로 활성탄을 이용한 미량 부산물을 흡착제

거하는 분리공정을 확보하여 최종 생성물의 순도를 99.89% 이상으로 증가시켰다. 시험제조한 ADN입자의 열특성과

화학작용기를 TGA-DSC와 FT-IR을 이용하여 분석평가하였으며, IC와 EA에서 합성 ADN의 이론적 화학종 및 불순

물의 양을 상대비교함으로써 순도를 측정하였다. 반응 중간단계의 합성수율은 UV-Vis를 이용하였으며, 궁극적인 수

율은 양론수 대비 무게비를 계산하여 환산하였다.

Keywords: ADN, purity, synthesis yield, purification

2P-612 Effect of Barium Silicate crystal filler content in the mechanical and thermal properties of

SiO2-B2O3-RO(R=Sr,Ca,Ba) glass system

이서환·최병현†·지미정·안용태·설광희

Electronic Materials & Module Team, KICET

([email protected]†)

SOFC에서 sealant는 연료(H2)와 공기(O2)의 혼합 차단과 단전지 적층 시 stack을 기 화하는데 필요한 구성소재로

써 매우 중요하다.

SOFC용 sealant가 갖추어야할 조건으로는 타 구성요소와 열팽창계수가 유사하고 반응이 적어야 되고, 금속

interconnect를 사용하는 SOFC에서는 작동 온도 이상인 850~900에서 유동성을 가지고 금속 interconnect의 부식

으로 인하여 각 단전지를 접합해야 하며, 작동 온도인 750~800에서 유동성 없이 접합이 유지되어야 한다.

본 연구에서는 SOFC 운전 조건인 산화 및 환원분위기에 따른 고온, 장시간에서 변형 및 수축이 거의 없으며, crack

발생이 없도록 성능을 향상시키고자 interconnect와 열팽창계수가 유사하고 반응이 적은 SiO2-B2O3-RO(R=Sr, Ca,

Ba)계 유리에 Barium Silicate계 결정을 복합화 할 때 결정의 함량 따라 기계적, 열적 특성이 고온에서 분위기 및 시간

http://www.ksiec.or.kr

120 공업화학 전망, 제17권 제3호, 2014

에 따라 어떻게 변화되는가를 관찰하였다.

Keywords: SOFC, sealant, filler

2P-657 Production of methanol from methane using methanotroph as biocatalyst with inhibitor of

methanol dehydrogenase

황인엽·이은열†

경희대학교

([email protected]†)

Production of methanol from methane is one of the key factors in utilization of natural and shale gas as

feedstock for chemicals production. Methanol was produced from methane with a high conversion rate using

various methanotrophs as the biocatalyst in the presence of a high concentration of inhibitor for methanol

dehydrogenase. Methanol was accumulated in the reaction media when sodium formate was supplied as reducing

power regeneration. ACKNOWLEDGMENT: This work was supported by the New & Renewable Energy of the

Korea Insitute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government

Ministry of Knowledge Economy (No. G031595311).

Keywords: methanotroph methane methanol dehydrogenase