Carbon Nanotubes Generated from Polyphenyl Acetylene

B.Rajesh1, S. Karthikeyan1, J.-M.Bonard2, K. Ravindranathan Thampi3, B.Viswanathan1

1Department of Chemistry, Indian Institute of Technology, Madras, Chennai-600 036, India

2Institut de Physique et Interfaces, Ecole Polytechnique Federale de Lausanne CH-1015, Switzerland

3Laboratoire de Photonique et Interfaces, Ecole Polytechnique Federale de Lausanne CH-1015, Switzerland

Abstract

The carbonization of polyphenyl acetylene in alumina matrix yields uniform, cylindrical, monodisperse carbon nanotubes with outer diameter almost equal to pore diameter of the alumina membrane used. The electrochemical characteristics reveal that the charge transfer at the composite electrode based on carbon nanotube might be higher compared to that of planar graphite, glassy carbon and composite electrode based on commercially available Vulcan XC72R carbon. Pt-Ru nanoparticles are highly dispersed inside the tube with an average particle size of 1.7 nm as revealed by HR-TEM images.