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Multi-Walled Carbon Nanotube Growth in Multi-Walled Carbon Nanotubes by Chemical Vapor Deposition.

Authors
  • Hasegawa, Takayuki
  • Arenas, Daniel J
  • Kohno, Hideo
Type
Published Article
Journal
Journal of Nanoscience and Nanotechnology
Publisher
American Scientific Publishers
Publication Date
Feb 01, 2015
Volume
15
Issue
2
Pages
1801–1804
Identifiers
PMID: 26353735
Source
Medline
License
Unknown

Abstract

We report chemical vapor deposition (CVD) growth of a multi-walled carbon nanotube (MWCNT) inside another MWCNTs from a cementite (Fe3C) catalyst nanoparticles. The CNTs have bi or tri-layered core(s)-sheath structure with various crystallinity. The sheath grows first at a lower temperature, and then the catalyst nanoparticle works again to grow the core(s) at a higher temperature in the tip or root growth mode. Transmission electron microscopy (TEM) observation provides a clear piece of evidence of reverse-inward growth.

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