Low-temperature and reversible hydrogen storage advances of light metal borohydrides

IF 16.3 1区工程技术 Q1 ENERGY & FUELS Renewable and Sustainable Energy Reviews Pub Date : 2024-10-18 DOI:10.1016/j.rser.2024.115000

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Abstract

Solid-state light metal borohydrides represented by LiBH₄, NaBH₄, Mg(BH₄)₂, and Ca(BH₄)₂ with high hydrogen capacity are promising media to store and transport hydrogen safely and efficiently, raising a hope for popularizing electricity-hydrogen coupling systems built on clean and renewable energy. Yet stable thermodynamics and sluggish kinetics of light metal borohydrides remain two key issues to be addressed for achieving the rapid and reversible hydrogen desorption and absorption under mild conditions. In this review, the short introductions for basic hydrogen storage characteristics of light metal borohydrides and fundamental principles of common thermodynamic and kinetic modification strategies are first presented. Then the focus is on the research advances in reducing operation temperature, accelerating reaction rates, and enhancing cyclic reversibility of light metal borohydrides by using these strategies or their synergy. On this basis, the existing challenges and future directions on light metal borohydrides are proposed from novel and specific perspectives, aiming to obtain high performance hydrogen storage materials practically available towards electricity-hydrogen coupling systems.

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轻金属硼氢化物的低温可逆储氢进展

以 LiBH4、NaBH4、Mg(BH4)2 和 Ca(BH4)2 为代表的固态轻金属硼氢化物具有很高的氢容量，是安全高效地储存和运输氢气的理想介质，为推广基于清洁可再生能源的电氢耦合系统带来了希望。然而，轻金属硼氢化物稳定的热力学和缓慢的动力学仍是在温和条件下实现快速、可逆的氢气解吸和吸收需要解决的两个关键问题。在本综述中，首先简要介绍了轻金属硼氢化物的基本储氢特性以及常见热力学和动力学改性策略的基本原理。然后，重点介绍了利用这些策略或其协同作用在降低轻金属硼氢化物的操作温度、加快反应速率和提高循环可逆性方面的研究进展。在此基础上，从新颖和具体的角度提出了轻金属硼氢化物的现有挑战和未来方向，旨在获得可用于电氢耦合系统的高性能储氢材料。

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来源期刊

Renewable and Sustainable Energy Reviews 工程技术-能源与燃料

CiteScore

31.20

自引率

5.70%

发文量

1055

审稿时长

62 days

期刊介绍： The mission of Renewable and Sustainable Energy Reviews is to disseminate the most compelling and pertinent critical insights in renewable and sustainable energy, fostering collaboration among the research community, private sector, and policy and decision makers. The journal aims to exchange challenges, solutions, innovative concepts, and technologies, contributing to sustainable development, the transition to a low-carbon future, and the attainment of emissions targets outlined by the United Nations Framework Convention on Climate Change. Renewable and Sustainable Energy Reviews publishes a diverse range of content, including review papers, original research, case studies, and analyses of new technologies, all featuring a substantial review component such as critique, comparison, or analysis. Introducing a distinctive paper type, Expert Insights, the journal presents commissioned mini-reviews authored by field leaders, addressing topics of significant interest. Case studies undergo consideration only if they showcase the work's applicability to other regions or contribute valuable insights to the broader field of renewable and sustainable energy. Notably, a bibliographic or literature review lacking critical analysis is deemed unsuitable for publication.