Effects of H2O Addition on One-Step Liquid-Phase Synthesis of Highly Aligned Carbon Nanotubes

Abstract:

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Highly aligned carbon nanotube arrays (HACNTAs) were synthesized on a stainless steel substrate from a methanol solution of Co(Ⅲ) acetylacetonate by the one-step liquid-phase synthesis, and effects of H2O addition on the HACNTA growth were examined. The growth rate was considerably accelerated, and the lifetime of the catalysts was prolonged by addition of a small amount of H2O. HACNTAs with over 400 m thickness were formed on the side surfaces of the substrate by resistance-heating for one hour. This suggests that the added H2O removes deposited amorphous carbons from the catalyst surfaces and consequently accelerates the growth rate.

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Periodical:

Edited by:

Shinobu Fujihara and Tadashi Takenaka

Pages:

201-204

DOI:

10.4028/www.scientific.net/KEM.445.201

Citation:

S. Yamashita et al., "Effects of H2O Addition on One-Step Liquid-Phase Synthesis of Highly Aligned Carbon Nanotubes", Key Engineering Materials, Vol. 445, pp. 201-204, 2010

Online since:

July 2010

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$35.00

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