Chemistry Letters
Online ISSN : 1348-0715
Print ISSN : 0366-7022
ISSN-L : 0366-7022
Letter
Preparation of Amorphous Carbon Nanotubes (a-CNTs) from Vanadium Dioxide@Organic Carbon Core–Shell-structured Composites and Their Thermal Stability in Air
Yifu ZhangXiongzhi ZhangChi HuangChanggong Meng
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2013 Volume 42 Issue 12 Pages 1502-1504

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Abstract

A novel route was developed to synthesize amorphous carbon nanotubes (a-CNTs) from organic carbon using V2O5 and glucose solution as the starting materials. The annealing process can stabilize organic carbon shells, leading to the successful formation of a-CNTs, which is the crucial step for preparing a-CNTs. The as-obtained a-CNTs have uniform diameters with outer diameter ranging from 150 to 250 nm and inner diameter about 30 nm on average, and their length is up to several micrometers. The carbon in the as-synthesized a-CNTs is completely amorphous, and the as-prepared a-CNTs are a kind of hydrogenated a-CNTs containing both sp3- and sp2 carbons. Furthermore, the as-prepared a-CNTs have good thermal stability and oxidation resistance below 305 °C in air.

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© 2013 The Chemical Society of Japan
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