Recent advances in catalyst-enhanced LiAlH4 for solid-state hydrogen storage: A review

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.

Automated summary

LiAlH4 is considered a potential material for solid-state hydrogen storage due to its high hydrogen content, but challenges like high decomposition temperature and slow dehydrogenation hinder its wider applications. Methods such as mechanical milling and catalyst doping have shown improvements in efficiency, but further technological advancements are needed to meet expected goals.