Catalytically Enhanced Hydrogen Storage Properties of Mg(NH2)(2)+2LiH Material by Graphite-Supported Ru Nanoparticles
文献类型：期刊论文
| 作者 | L. P. Ma ; H. B. Dai ; Y. Liang ; X. D. Kang ; Z. Z. Fang ; P. J. Wang ; P. Wang ; H. M. Cheng |
| 刊名 | Journal of Physical Chemistry C
 |
| 出版日期 | 2008 |
| 卷号 | 112期号:46页码:18280-18285 |
| 关键词 | n-h system self-assembled monolayers complex hydrides ammonia decomposition surfaces ru(001) carbon linh2 nh3 |
| ISSN号 | 1932-7447 |
| 中文摘要 | Identification of effective catalyst has been a subject of great interest and challenge in developing metal-N-H systems as potential hydrogen storage media. Motivated by the mechanistic understanding of the essential amide/imide conversion, we experimentally examined the possibility of N-H bond activation by using metal catalyst. We prepared the graphite-supported Ru nanoparticles (Ru/C catalyst) and evaluated their effect on the hydrogen storage properties of Mg(NH2)(2) + 2LiH material. Our studies show that the Ru/C catalyst is catalytically active toward both dehydrogenation and rehydrogenation reactions of Mg(NH2)(2) + 2LiH. Moreover, the catalytically enhanced hydrogen sorption kinetics persists well over 10 de/rehydrogenation cycles. Careful examination of the isothermal dehydrogenation behaviors suggests that the enhanced dehydrogenation kinetics may result from the Ru-catalyzed interface reaction between amide and imide solid phases. This is consistent with the Fourier transform infrared results, which show clearly the promoting effect of Ru catalyst on the N-H bond reconstruction. Finally, the catalytic mechanism of Ru catalyst on the reversible dehydrogenation reactions of Mg(NH2)(2) + 2LiH material is discussed. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/33018]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | L. P. Ma,H. B. Dai,Y. Liang,et al. Catalytically Enhanced Hydrogen Storage Properties of Mg(NH2)(2)+2LiH Material by Graphite-Supported Ru Nanoparticles[J]. Journal of Physical Chemistry C,2008,112(46):18280-18285. |
| APA | L. P. Ma.,H. B. Dai.,Y. Liang.,X. D. Kang.,Z. Z. Fang.,...&H. M. Cheng.(2008).Catalytically Enhanced Hydrogen Storage Properties of Mg(NH2)(2)+2LiH Material by Graphite-Supported Ru Nanoparticles.Journal of Physical Chemistry C,112(46),18280-18285. |
| MLA | L. P. Ma,et al."Catalytically Enhanced Hydrogen Storage Properties of Mg(NH2)(2)+2LiH Material by Graphite-Supported Ru Nanoparticles".Journal of Physical Chemistry C 112.46(2008):18280-18285. |
入库方式： OAI收割
来源：金属研究所
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