A reliable and efficient means of storing hydrogen is one of the major challenges that needs to be overcome to establish the “hydrogen economy”. In this Hot Paper Xuebin Yu and co-workers report the first successful identification of the structure of Ca(BH4)2·NH3 and a strategy to improved its dehydrogenation properties by combining Ca(BH4)2·NH3 with LiBH4. The synergistic effect of the introduction of an extra BH group and aided-cation allows the combined system to dehydrogenate at much lower temperatures than neat Ca(BH4)2·NH3 and LiBH4, and other Li-Ca-based hydrogen storage systems.
A novel aided-cation strategy to advance the dehydrogenation of calcium borohydride monoammoniate: Ziwei Tang, Yingbin Tan, Qinfen Gu and Xuebin Yu, J. Mater. Chem., 2012, 22, 5312-5318.
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