Title

Effect of TixAly catalysts on hydrogen storage properties of LiAlH4 and NaAlH4

Authors

Authors

M. Resan; M. D. Hampton; J. K. Lomness;D. K. Slattery

Comments

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Abbreviated Journal Title

Int. J. Hydrog. Energy

Keywords

hydrides; alanates; titanium doping; ALUMINUM HYDRIDES; METAL HYDRIDES; TRANSFORMATIONS; DECOMPOSITION; Chemistry, Physical; Electrochemistry; Energy & Fuels

Abstract

The high catalytic activities of TiCl4 and TiCl3 on the hydrogen storage properties of alkali metal aluminum hydrides have been attributed to intennetallic TiAl3. Therefore, in this work, the hydrogen storage properties of LiAlH4 and NaAlH4 doped with titanium aluminum alloys were investigated. The dopants were incorporated into the alanates by ball milling. The catalysts studied included TiAl3, Ti3Al, elemental titanium, and elemental aluminum. Ball milling in the absence of the catalyst was found to decrease the release temperature of hydrogen. Doping LiAlH4 with Ti3Al, TiAl3 and elemental aluminum additionally reduced the temperature required for hydrogen release. That effect was not observed for mixtures with NaAlH4. (c) 2004 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

Journal Title

International Journal of Hydrogen Energy

Volume

30

Issue/Number

13-14

Publication Date

1-1-2005

Document Type

Article

Language

English

First Page

1417

Last Page

1421

WOS Identifier

WOS:000233293500008

ISSN

0360-3199

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