Recent advances in sodium borohydride for hydrogen storage

Abstract

Hydrogen energy is an efficient and renewable clean energy source, and the key issue for its application right moment is the development of hydrogen storage technology with high density and safety. Among many available hydrogen storage materials, metal complex hydrides with the advantages of high hydrogen storage capacity and good safety, are promising for future applications. However, high-capacity hydrogen storage composites suffer from disadvantages such as high hydrogen release temperature and poor reversibility, which severely limit their application. This paper provides a detailed summary of existing approaches to improve the kinetic and thermodynamic properties of NaBH4 for hydrogen storage, including the addition of catalysts, the incorporation of appropriate reactants and the preparation of nanoscale NaBH4, as well as an outlook on the future direction of pyrolysis.