Possible growth region of single-walled carbon nanotube in CVD synthesis on the CHO components diagram

Shuhei Inoue, Takashi Tomie, Yukihiko Matsumura, Masamichi Kohno

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Considering the massive-scale synthesis of single-walled carbon nanotube (SWCNT), chemical vapor deposition has become a standard process for synthesizing CNTs. In most of these processes, oxygen and hydrogen atoms were included originally or added later; and they are expected to have important roles such that they helped in the removal of amorphous carbon and prevented SWCNTs from containing metal particles. However, whole perspectives for suitable carbon source or ideal balance among carbon, hydrogen, and oxygen have not been reported. We examined a variety of raw materials in our newly developed round-trip-type vacuum furnace in order to determine whether they could be used to synthesize a carbon nanotube. We used Raman spectroscopy for evaluation, and plotted the component ratios of effective and ineffective materials on a C-H-O ternary diagram. Consequently, it is clear that the growth region should satisfy the equation O < C < (H + O) in molar ratio.

Original languageEnglish
Title of host publicationASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011
PublisherAmerican Society of Mechanical Engineers
ISBN (Print)9780791838921
DOIs
Publication statusPublished - 2011
EventASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011 - Honolulu, HI, United States
Duration: Mar 13 2011Mar 17 2011

Publication series

NameASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011

Other

OtherASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011
CountryUnited States
CityHonolulu, HI
Period3/13/113/17/11

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology

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    Inoue, S., Tomie, T., Matsumura, Y., & Kohno, M. (2011). Possible growth region of single-walled carbon nanotube in CVD synthesis on the CHO components diagram. In ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011 (ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011). American Society of Mechanical Engineers. https://doi.org/10.1115/ajtec2011-44193