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Journal of Nanomaterials
Volume 2015, Article ID 752647, 5 pages
http://dx.doi.org/10.1155/2015/752647
Research Article

The Formation of Carbon Nanostructures via Catalytic Pyrolysis of Naphthalene under Its Autogenic Pressure

1College of Science, Beijing University of Chemical Technology, Beijing 100029, China
2Key Laboratory of Carbon Fibers and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China

Received 9 January 2015; Accepted 26 February 2015

Academic Editor: Yuhua Xue

Copyright © 2015 Chao-Gang Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The formation of carbon nanotubes (CNTs), spherical carbon nanocapsules (CNCs), and carbon spheres (CSs) is accomplished by using the method of reactions under autogenic pressure at elevated temperatures (RAPET). A powder mixture of naphthalene and nickel acetate tetrahydrate is dissociated under its autogenic pressure. The resultant CNTs and CNCs exhibit good graphitic quality, and the diameters range from 50~200 nm. Smooth and monodisperse CSs with the diameter ranging from 5~10 μm can be obtained by pyrolysis of pure naphthalene. Our results show that the reaction temperature and catalyst proportion play a key role in the formation of carbon nanostructures with RAPET method.