Significantly enhanced dehydrogenation properties of calcium borohydride combined with urea

Hailiang Chu; Shujun Qiu; Lin Liu; Yongjin Zou; Cuili Xiang; Huanzhi Zhang; Fen Xu; Lixian Sun; Huaiying Zhou; Guotao Wu

doi:10.1039/C4DT01355G

Significantly enhanced dehydrogenation properties of calcium borohydride combined with urea†

Hailiang Chu,*^ab Shujun Qiu,^b Lin Liu,^a Yongjin Zou,^b Cuili Xiang,^b Huanzhi Zhang,^b Fen Xu,^b Lixian Sun,^b Huaiying Zhou^b and Guotao Wu*^a

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* Corresponding authors

^a Dalian Institute of Chemical Physics, Chinese Academy of Sciences, No. 457, Zhongshan Road, Dalian 116023, PR China
E-mail: wgt@dicp.ac.cn

^b School of Materials Science and Engineering, Guilin University of Electronic Technology, No. 1, Jinji Road, Guilin 541004, PR China
E-mail: chuhailiang@guet.edu.cn
Fax: +86-773-2290129
Tel: +86-773-2216607

Abstract

The interaction of [BH_x]- and [NH_x]-containing species gives rise to molecular hydrogen and the establishment of the B–N bond. Up to now, metal amides and ammonia are the commonly used [NH_x] sources. Herein, urea, an organic carbonyl diamide, was used to react with Ca(BH₄)₂. A new type of complex hydride Ca(BH₄)₂·4CO(NH₂)₂ was synthesized with release of ca. 5.2 wt% hydrogen below 250 °C.

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Significantly enhanced dehydrogenation properties of calcium borohydride combined with urea†

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Significantly enhanced dehydrogenation properties of calcium borohydride combined with urea

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