Title: Dehydrogenation performance of NH3BH3 with Mg2NiH4 addition
Abstract: The dehydrogenation performance of NH3BH3 destabilized by Mg2NiH4 was investigated. It was found that the onset dehydrogenation temperature was reduced, and no gaseous by-products were released during the whole decomposition process. This enhanced dehydrogenation performance could be attributed to the destabilization effect of Mg2NiH4. In comparison with the 2NH3BH3/MgH2 sample, the dehydrogenation behavior and destabilization mechanism are different. 4NH3BH3/Mg2NiH4 composite exhibits a three-step decomposition feature. NH3BH3 and Mg2NiH4 decomposed separately. The destabilization effect of Mg2NiH4 on the chemical bonds of NH3BH3 plays a crucial role in the enhanced dehydrogenation performance. Our results provide a new insight on destabilized dehydrogenation behavior of NH3BH3 after metal hydrides addition.
Publication Year: 2011
Publication Date: 2011-09-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 7
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