The growth of carbon nanostructures on cobalt-doped carbon aerogels

Published

Journal Article

By carbonizing cobalt-doped aerogel precursors directly at various temperatures, or by carbon monoxide decomposition of cobalt-doped carbon aerogels, different carbon nano-features such as carbon nano-filaments and graphitic nano-ribbons were grown on cobalt-doped carbon aerogel samples. Transmission electron spectroscopy, X-ray photoelectron spectroscopy and X-ray diffraction characterization results showed that metallic cobalt nano-particles form when heating the cobalt-doped aerogel samples over 500 °C. At low heating temperature, many highly oriented carbon thin films can be found on metallic cobalt nano-particles. When heating the samples at 850 °C, some carbon nano-filaments are obtained. While heating the samples at 1050 °C, many graphitic nano-ribbons are grown and the framework of the interconnected carbon particles of the sample is changed. Graphitic nano-ribbons can also be grown by CO decomposition of the cobalt-doped carbon aerogels. We can therefore control and modify the nanostructures of cobalt-doped carbon aerogels by heating them at different temperatures or by using CO decomposition. © 2002 Published by Elsevier Science B.V.

Full Text

Duke Authors

Cited Authors

  • Fu, R; Dresselhaus, MS; Dresselhaus, G; Zheng, B; Liu, J; Satcher, J; Baumann, TF

Published Date

  • April 15, 2003

Published In

Volume / Issue

  • 318 / 3

Start / End Page

  • 223 - 232

International Standard Serial Number (ISSN)

  • 0022-3093

Digital Object Identifier (DOI)

  • 10.1016/S0022-3093(02)01903-8

Citation Source

  • Scopus