Abstract
Amminelithium borohydride (LiBH4•NH3) is one of the most hydrogen-rich inorganic materials, showing potential application for hydrogen storage. In this paper, the dehydrogenation of LiBH4• NH3 was promoted significantly through heating in ammonia atmosphere which demonstrated that the coordinate between NH3 and LiBH 4 is a crucial factor in inducing the hydrogen release for this system. Meanwhile, several metal hydrides LiH, NaH, and CaH2 were found to be effective in promoting the dehydrogenation of LiBH 4•NH3. Among the studied additives, the effect of LiH, as an example, was discussed in detail. It was found that the promotion of dehydrogenation through LiH is due to the reaction: 3LiH + 3LiBH 4•NH3 Li4BN3H10 + 2LiBH4 + 3H2, releasing hydrogen from 60 ̊C. © 2010 American Chemical Society.
| Original language | English |
|---|---|
| Pages (from-to) | 12823-12827 |
| Journal | Journal of Physical Chemistry C |
| Volume | 114 |
| Issue number | 29 |
| DOIs | |
| Publication status | Published - 29 Jul 2010 |
| Externally published | Yes |
Bibliographical note
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The authors acknowledge Dr. Tania Silver for her help in editing the manuscript. This work was partially supported by the 973 program (A001070904), the Shanghai Leading Academic Discipline Project (B113), the Shanghai Pujiang Project (08PJ14014), and an Australian Research Council (ARC) Discovery project (DP0878661).
