This work was supported by the Project for Scientific Researches of 2009 in Universities from the Education Department of Liaoning Province (No. 2009S016).
Relationship Between Geometric Structures of Catalyst Particles and Growth of Carbon Nanocoils†
Article first published online: 29 JUN 2010
Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Chemical Vapor Deposition
Volume 16, Issue 4-6, pages 166–169, June 2010
How to Cite
Li, D.-W., Pan, L.-J., Liu, D.-P. and Yu, N.-S. (2010), Relationship Between Geometric Structures of Catalyst Particles and Growth of Carbon Nanocoils. Chem. Vap. Deposition, 16: 166–169. doi: 10.1002/cvde.200906832
- Issue published online: 29 JUN 2010
- Article first published online: 29 JUN 2010
- Manuscript Revised: 18 JAN 2010
- Manuscript Received: 15 OCT 2009
- Carbon nanocoils;
- Geometric structure;
- Growth mechanism
The relationship between the geometric structures of catalyst particles and the growth of carbon nanocoils (CNCs) is investigated. It is found that the CNCs usually consist of over two, but less than five tubules. The catalyst particles at the tips of CNCs are all polyhedron structures, in most cases, hexahedron. It is considered that a catalyst particle has two kinds of crystal facets, the catalytically active facet and the carbon precipitation facet. The active facet mainly plays the roles of decomposition of hydrocarbon and diffusion of the formed carbon atoms, while carbon tubules are grown from the precipitation facets and twisted to form a carbon coil. Catalysts with different numbers of active facets and geometric structures form different types of CNCs.