Recent advances in catalyst-enhanced LiAlH_4 for solid-state hydrogen storage: A review

摘要

LiAlH4 is regarded as a potential material for solid-state hydrogen storage because of its high hydrogen content (10.5 wt%). However, its high decomposition temperature, slow dehydrogenation kinetics and irreversibility under moderate condition hamper its wider applications. Mechanical milling treatment and doping with a catalyst or additive has drawn significant ways to improve hydrogen storage properties of LiAlH4. Microstructure or nanostructure materials were developed by using a ball milling technique and doping with various types of catalysts or additives which had dramatically improved the efficiency of LiAlH4. However, the state-of-the-art technologies is still far from meeting the expected goal for the applications. In this paper, the overview of the recent advances in catalyst-enhanced LiAlH4 for solid-state hydrogen storage is detailed. The remaining challenges and the future prospect of LiAlH4-catalyst system is also discussed. This paper is the first systematic review that focuses on catalyst-enhanced LiAlH4 for solid-state hydrogen storage. (C) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.