Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Diameter Control of Carbon Nanotubes Using Surface Modified Fe Nano-Particle Catalysts with APS

APS로 표면 처리한 Fe 나노 입자 촉매를 이용한 CNT의 직경제어

  • Lee, Sunwoo (Department of Electrical Information, Inha Technical College)
  • 이선우 (인하공업전문대학 전기정보과)
  • Received : 2013.05.15
  • Accepted : 2013.05.24
  • Published : 2013.06.01
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Abstract

Diameter controlled carbon nanotubes (CNTs) were grown using surface modified iron nano-particle catalysts with aminpropyltriethoxysilane (APS). Iron nano-particles were synthesized by thermal decomposition of iron pentacarbonyl-oleic acid complex. Subsequently, APS modification was done using the iron nano-particles synthesized. Agglomeration of the iron nano-particles during the CNT growth process was effectively prevented by the surface modification of nano-particles with the APS. APS plays as a linker material between Fe nano-particles and $SiO_2$ substrate resulting in blocking the migration of nano-particles. APS also formed siliceous material covering the iron nano-particles that prevented the agglomeration of iron nano-particles at the early stages of the CNT growth. Therefore we could obtain the diameter controlled CNTs by blocking agglomeration of the iron nano-particles.

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