Recent advance of metal borohydrides for hydrogen storage

Abstract

Hydrogen energy is an excellent carrier for connecting various renewable energy sources and has many advantages. However, hydrogen is flammable and explosive, and its density is low and easy to escape, which brings inconvenience to the storage and transportation of hydrogen. Therefore, hydrogen storage technology has become one of the key steps in the application of hydrogen energy. Solid-state hydrogen storage method has a very high volumetric hydrogen density compared to the traditional compressed hydrogen method. The main issue of solid-state hydrogen storage method is the development of advanced hydrogen storage materials. Metal borohydrides have very high hydrogen density and have received much attention over the past two decades. However, high hydrogen sorption temperature, slow kinetics, and poor reversibility still severely restrict its practical applications. This paper mainly discusses the research progress and problems to be solved of metal borohydride hydrogen storage materials for solid-state hydrogen storage.

Novel porous Al-based composites for improved Al–water reaction performances by spark plasma sintering

“…1–5 Hydrogen is a preferential option as a high calorific value, pollution-free, and resource-rich fuel. 6–8 Hydrogen is recognized as an ideal energy source for the 21st century, and consequently, hydrogen-generation technology has attracted the interest of many researchers. 9…”

“…[1][2][3][4][5] Hydrogen is a preferential option as a high caloric value, pollution-free, and resource-rich fuel. [6][7][8] Hydrogen is recognized as an ideal energy source for the 21st century, and consequently, hydrogengeneration technology has attracted the interest of many researchers. 9 The production of hydrogen by the hydrolysis reactions of metals and metal hydrides (Mg and MgH 2 , NaBH 4 , LiAlH 4 , Al, etc.)…”

Real-time tunable hydrogen generation from hydrolysis of borohydrides using 3D magnetic catalysts

“…3,4 In recent years, more and more attention has been paid to the generation of hydrogen via formic acid, ammonia borane, metal hydrides, and their derivatives because of their high theoretical hydrogen yield. [5][6][7][8] Amongst various hydrogen production and storage methods, hydrolysis of borohydrides, especially NaBH 4 , has gained much attention due to its high hydrogen storage capacity (10.8 wt% for NaBH 4 ), high H 2 purity, mild operation conditions, high safety and environmentally benign nature. [9][10][11][12][13] Besides, great achievements have been made in the simplified synthesis and regeneration of NaBH 4 , which facilitates the development of the hydrogen energy process chain and the hydrogen economy.…”

Size Matters: A Computational Study of Hydrogen Absorption in Ionic Liquids

“…On the other hand, the main idea behind chemical storage is to use hydrogen carriers to design materials that can undergo hydrogenation and dehydrogenation processes. A large number of systems can be attractive for the latter purpose, e.g., the potential ability of borohydrides and ammonia borane to store and deliver large amounts of molecular hydrogen has been intensively investigated. Such dehydrogenation reactions were found to be enhanced in the presence of ionic liquids (ILs), − both in terms of the extent and rate of hydrogen release.…”