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Inorganics 2017, 5(2), 38;

Synthesis of LiAlH4 Nanoparticles Leading to a Single Hydrogen Release Step upon Ti Coating

Merlin group, School of Chemical Engineering, The University of New South Wales, Sydney 2052, Australia
Author to whom correspondence should be addressed.
Academic Editor: Torben R. Jensen
Received: 20 May 2017 / Revised: 3 June 2017 / Accepted: 3 June 2017 / Published: 7 June 2017
(This article belongs to the Special Issue Functional Materials Based on Metal Hydrides)
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Lithium aluminum hydride (LiAlH4) is an interesting high capacity hydrogen storage material with fast hydrogen release kinetics when mechanically activated with additives. Herein, we report on a novel approach to produce nanoscale LiAlH4 via a bottom-up synthesis. Upon further coating of these nanoparticles with Ti, the composite nanomaterial was found to decompose at 120 °C in one single and extremely sharp exothermic event with instant hydrogen release. This finding implies a significant thermodynamic alteration of the hydrogen properties of LiAlH4 induced by the synergetic effects of the Ti catalytic coating and nanosizing effects. Ultimately, the decomposition path of LiAlH4 was changed to LiAlH4 → Al + LiH + 3/2H2. View Full-Text
Keywords: alanate; lithium aluminum hydride; nanosizing; core–shell; hydrogen storage alanate; lithium aluminum hydride; nanosizing; core–shell; hydrogen storage

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Wang, L.; Aguey-Zinsou, K.-F. Synthesis of LiAlH4 Nanoparticles Leading to a Single Hydrogen Release Step upon Ti Coating. Inorganics 2017, 5, 38.

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