Paper Title:
The Growth of Carbon Nanostructure on the Mechanical-Milling-Derived Catalyst Precursors
  Abstract

Mechanical milling was employed to prepare the nanocomposite precursors for the catalytic growth of carbon nanostructures. For alumina substrates, our study showed that mechanical-millingderived catalyst precursors possessed high hydrogen reduction efficiency that in turn enabled the high yield of CNTs. The alloying effects presented by the mechanical milling could accelerate the substitutional reactions between the parent oxides and thus the quality of CNTs was apparently improved. In addition, by using water-soluble substrates such as NaCl, we realized large-scale formation of carbon-encapsulated metal nanoparticles (CEMNs) that can be completely separated by a simple washing process. It was found that the morphologies of as-obtained carbon nanostructures were strongly dependent on the substrate effects. By selecting different salt substrates, we can strategically change the morphologies of the as-obtained nanostructures, from CNTs to CEMNs and the intermediate state between CNTs and CEMNs, such as quasi-nanocages.

  Info
Edited by
M. Gupta and Christina Y.H. Lim
Pages
383-386
DOI
10.4028/www.scientific.net/JMNM.23.383
Citation
B.H. Liu, J. Ding, Z.L. Dong, Z. Y. Zhong, J. Y. Lin, T.J. White, "The Growth of Carbon Nanostructure on the Mechanical-Milling-Derived Catalyst Precursors", Journal of Metastable and Nanocrystalline Materials, Vol. 23, pp. 383-386, 2005
Online since
January 2005
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Urszula Narkiewicz, Marcin Podsiadły, Iwona Pełech, Waleran Arabczyk, M.J. Woźniak, Krzysztof J. Kurzydłowski
Abstract:Nanocrystalline cobalt was carburised with ethylene in the range 340– 500°C to obtain Co(C) nanocapsules. The carbon deposit was reduced by...
249
Authors: Zhao Yong Ding, Bao Min Sun, Yong Hong Guo, Bin Jia, Jin Sheng Bi
Abstract:Pyramid sharp pyrolysis flame is a new method for carbon nanotubes synthesis. Oxy-acetylene flame outside the frustum of pyramid sharp...
572
Authors: Qian Zhang, Li Feng Dong
Chapter 9: Nano Materials
Abstract:A series of techniques, including field emission scanning electron microscopy, transmission electron microscopy, X-ray powder diffraction,...
1364
Authors: Jian Bao Hu, Shao Ming Dong, Xiang Yu Zhang, Zhi Hui Hu, Bo Lu, Jin Shan Yang, Qing Gang Li, Bin Wu
Chapter 2: Engineering Ceramics and Ceramic Composites
Abstract:Surface modification of carbon fibers(CF) by physicochemical methods directs an attractive approach for improvement of metal uptake from...
761
Authors: Lei Shan Chen
Chapter 2: Applications of Materials in Manufacturing Technologies, Materials Science and Engineering
Abstract:Carbon nanotubes based on anodic aluminum nano-templates embedded with different metal catalysts were synthesized and the influence on the...
534