Effects of carbon nanotubes and metal catalysts on hydrogen storage in magnesium nanocomposite

Yao, X. D. and Wu, C. Z. and Wang, Hao and Cheng, H. M. and Lu, G. Q. (2006) Effects of carbon nanotubes and metal catalysts on hydrogen storage in magnesium nanocomposite. Journal of Nanoscience and Nanotechnology, 6 (2). pp. 494-498. ISSN 1533-4880

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Abstract

This paper reports a study on nanostructured magnesium composites with carbon nanotubes (CNTs) and catalytic transition metals with high H2 adsorption capacity and fast adsorption kinetics at reduced hydrogenation temperatures. Nanostructures in such a composite are shown to be responsible for improvements in both adsorption capacity and kinetics. It is found that the carbon nanotubes significantly increase the hydrogen storage capacity, and the catalytic transition metals (Fe and Ti) greatly improve the kinetics. This could be understood from the enhancement of diffusion by CNTs and decrease in energy barrier of hydrogen dissociation at the magnesium surface.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Awaiting copyright advice.
Depositing User: Dr Hao Wang
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 11 Oct 2007 01:19
Last Modified: 02 Jul 2013 22:49
Uncontrolled Keywords: carbon nanotubes (CNT), metal catalysts, hydrogen, magnesium, nanocomposite
Fields of Research (FOR2008): 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
03 Chemical Sciences > 0303 Macromolecular and Materials Chemistry > 030302 Nanochemistry and Supramolecular Chemistry
URI: http://eprints.usq.edu.au/id/eprint/3061

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