Thermal decomposition of alkaline-earth metal hydride and ammonia borane composites
International Journal of Hydrogen Energy Volume 35 Issue 22
Page 12405-12409
published_at 2010-11
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| File | |
| Title ( eng ) |
Thermal decomposition of alkaline-earth metal hydride and ammonia borane composites
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| Creator |
Zhang Yu
Shimoda Keiji
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| Source Title |
International Journal of Hydrogen Energy
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| Volume | 35 |
| Issue | 22 |
| Start Page | 12405 |
| End Page | 12409 |
| Abstract |
We demonstrate a method to improve the promising hydrogen storage capabilities of ammonia borane by making composites with alkaline earth metal hydrides using ball milling technique The ball milling for the mixtures of alkaline earth metal hydride (MgH2 or CaH2) and ammonia borane (AB) yields a destabilization compared with the ingredient of the mixture, showing the hydrogen capacity of 8 7 and 5 8 mass% at easily accessible dehydrogenation peak temperatures of 78 and 72 C respectively without the unwanted by product borazine Through detailed analyses on the dehydrogenation performance of the composite at various ratios in the hydride and AB we proposed a different chemical activation mechanism from that in the LiH/AB and NaH/AB systems reported in a previous literature.
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| Keywords |
Hydrogen
Ammonia borane
Alkaline earth metal hydride
Dehydrogenation
Borazine
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| NDC |
Chemistry [ 430 ]
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| Language |
eng
|
| Resource Type | journal article |
| Publisher |
Pergamon Elsevier Science Ltd
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| Date of Issued | 2010-11 |
| Rights |
Copyright (c) 2010 Professor T. Nejat Veziroglu Published by Elsevier Ltd.
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| Publish Type | Author’s Original |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0360-3199
[DOI] 10.1016/j.ijhydene.2010.08.018
[NCID] AA00680410
[DOI] http://dx.doi.org/10.1016/j.ijhydene.2010.08.018
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