Ti-catalyzed Mg(AlH4)2

A reversible hydrogen storage material

Journal Article (2005)
Author(s)

R. Gremaud (Vrije Universiteit Amsterdam, University of Fribourg)

A. Borgschulte (Vrije Universiteit Amsterdam)

W. Lohstroh (Vrije Universiteit Amsterdam)

H. Schreuders (Vrije Universiteit Amsterdam)

A. Züttel (Vrije Universiteit Amsterdam, University of Fribourg)

B. Dam (Vrije Universiteit Amsterdam)

R. Griessen (Vrije Universiteit Amsterdam)

DOI related publication
https://doi.org/10.1016/j.jallcom.2005.01.140 Final published version
More Info
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Publication Year
2005
Language
English
Journal title
Journal of Alloys and Compounds
Volume number
404-406
Pages (from-to)
775-778
Downloads counter
115

Abstract

Mg-Al thin films with a compositional gradient are co-sputtered from off-centered magnetron sources and capped with a thin Pd layer. We study their hydride formation by monitoring their optical transmission during hydrogenation under defined pressure and temperature conditions. We find that Mg(AlH 4)2 is already formed from the elements at p(H2)=1 bar and T=100 ° C. A thin layer of Ti acts as a catalyst. Doping of Mg-Al with Ti has a negative influence on hydrogen absorption.