Since the 1970s, hydrogen has been considered as a possible energy carrier for the storage of renewable energy. The main focus has been on addressing the ultimate challenge: eveloping an environmentally friendly successor for gasoline. This very ambitious goal has not yet been fully reached, as discussed in this review, but a range of new lightweight hydrogen-ontaining materials has been discovered with fascinating properties. State-of-the-art and future perspectives for hydrogen-containing solids will be discussed, with a focus on metal borohydrides, which reveal significant structural flexibility and may have a range of new interesting properties combined with very high hydrogen densities.
Ley, M. B. ; Jepsen, L. H. ; Lee, Y.-S. ; Cho, Y. W. ; Bellosta van Colbe, J. M. ; et. al. Complex hydrides for hydrogen storage - new perspectives. In: Materials Today, Vol. 17, no. 3, p. 122-128 (2014)