Topic
Aluminium hydride
About: Aluminium hydride is a research topic. Over the lifetime, 281 publications have been published within this topic receiving 5151 citations. The topic is also known as: aluminum trihydride & AlH3.
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TL;DR: In this paper, a reversible hydrogen storage system based on catalyzed reactions is proposed, where the catalytic acceleration of the reactions in both directions is achieved by doping alkali metal aluminium hydrides with a few mol% of selected Ti compounds.
1,671 citations
TL;DR: In this article, the effect of titanium and zirconium catalysts on the dehydrogenation kinetics of NaAlH4 was investigated and it was shown that a combination of both titanium and Zr(OPr) catalysts can achieve a greater than 4 wt% cyclable hydrogen capacity.
251 citations
TL;DR: In this paper, a 1D model has been developed to evaluate various designs of metal hydride reactors with planar, cylindrical or spherical geometry, which simulates a cycling loop (absorption-desorption) focusing attention on the heat transfer inside the hydide bed, which is considered the rate limiting factor.
163 citations
TL;DR: In this paper, the authors showed that polycrystalline LiAlH4 showed good stability during high-energy ball-milling in a helium atmosphere for up to 35 h.
153 citations
TL;DR: In this article, the dielectric functions of the series of simple hydrides LiH, NaH, MgH2, and AlH3 were studied using first-principles density functional theory and GW calculations.
Abstract: We study the dielectric functions of the series of simple hydrides LiH, NaH, MgH2, and AlH3, and of the complex hydrides Li3AlH6, Na3AlH6, LiAlH4, NaAlH4, and Mg(AlH4)2, using first-principles density-functional theory and GW calculations. All compounds are large gap insulators with GW single-particle band gaps varying from 3.5 eV in AlH3 to 6.6 eV in LiAlH4. Despite considerable differences between the band structures and the band gaps of the various compounds, their optical responses are qualitatively similar. In most of the spectra the optical absorption rises sharply above 6 eV and has a strong peak around 8 eV. The quantitative differences in the optical spectra are interpreted in terms of the structure and the electronic structure of the compounds. In the simple hydrides the valence bands are dominated by the hydrogen atoms, whereas the conduction bands have mixed contributions from the hydrogens and the metal cations. The electronic structure of the aluminium compounds is determined mainly by aluminium hydride complexes and their mutual interactions.
121 citations