| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 674424 | Thermochimica Acta | 2011 | 6 Pages |
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.
► Dehydrogenation performance of NH3BH3 is enhanced by ball milling with Mg2NiH4. ► No gaseous by-products were released during the whole decomposition process with Mg2NiH4 addition. ► The main cause for dehydrogenation improvements of NH3BH3 is the destabilization effect of Mg2NiH4.
