Combustion synthesis of carbon nanotubes using their self-catalytic behavior

자기촉매 특성을 이용한 탄소나노튜브의 연소합성 연구

  • 우상길 (성균관대학교 대학원 기계공학과) ;
  • 홍영택 (성균관대학교 대학원 기계공학과) ;
  • 권오채 (성균관대학교 기계공학부)
  • Published : 2008.11.05

Abstract

Self-catalytic behavior of combustion-synthesized carbon nanotubes (CNTs) is evaluated using a double-faced wall stagnation flow burner with a CNT-deposited stainless steel plate wall. CNT formation is observed using field-emission scanning and transmission electron microscopies and Raman spectroscopy. A self-catalytic behavior of multi-walled CNTs (MWCNTs) shows the enhanced ratio of channel diameter to tube wall thickness and the enhanced intensity ratio of G-band to D-band in Raman spectroscopy, implying that the quality of metal-catalytic, flame-synthesized MWCNTs can be much improved via a CNT self-catalytic flame-synthesis process. Thus, using a DWSF burner through the self-catalytic process has potential in mass production of CNTs having much improved quality.

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