NanotubesNanotubes

NanotubesNanotubes

Definition: A flat layer of graphite rolled Definition: A flat layer of graphite rolled into a tube.into a tube.

Physicist Alex Zettl, shown here with a model of a carbon nanotube

NanotubesNanotubesClassification:Classification:– Configuration:Configuration:

– ArmchairArmchair– ZigzagZigzag– ChiralChiral

– Number of layers:Number of layers:– Single-walled Single-walled

nanotubesnanotubes

– Multi-walled Multi-walled nanotubesnanotubes

NanotubesNanotubes

Properties:Properties:

– Tensile Strength Tensile Strength -Functionalization-Functionalization– ElasticityElasticity -Luminescence-Luminescence– DensityDensity -Self- assembly-Self- assembly– Thermal conductionThermal conduction -Chemically inert-Chemically inert– Electrical conductionElectrical conduction

NanotubesNanotubesApplications:Applications:

NanotubesNanotubes

Other Applications:Other Applications:– Electrical fieldElectrical field– Reinforce Composites.Reinforce Composites.– Fuel CellsFuel Cells