Electron microscopy study of Ti-doped sodium aluminum hydride prepared by mechanical milling NaH/Al with Ti powder
文献类型：期刊论文
| 作者 | X. D. Kang ; P. Wang ; H. M. Cheng |
| 刊名 | Journal of Applied Physics
 |
| 出版日期 | 2006 |
| 卷号 | 100期号:3 |
| 关键词 | reversible hydrogen storage x-ray-diffraction naalh4 titanium alanates state decomposition spectroscopy absorption precursors |
| ISSN号 | 0021-8979 |
| 中文摘要 | Quite recently, we have demonstrated that mechanical milling NaH/Al mixture with metallic Ti powder resulted in the formation of catalytically active Ti hydride. In the present study, the morphology and the distribution state of the catalytically active Ti hydride and the parent phases of the as-prepared and cycled samples were examined by electron microscopy in combination with energy dispersive x-ray analysis. It was observed that the de-/hydriding cycles resulted in a substantial change on the particle size and grain size of Al. In particular, a specific correlation between the distribution states of Al and Ti hydride was developed after de-/hydriding cycles. In addition, a variation of milling atmosphere during the doping process was found to lead to a varied distribution state of Ti hydride phase. Understanding of these structural characteristics, especially in combination with the previously observed hydrogen storage performance of the materials, has provided insight into the catalytic mechanism and reaction processes of metallic Ti-doped NaAlH(4). (c) 2006 American Institute of Physics. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34282]  |
| 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 | X. D. Kang,P. Wang,H. M. Cheng. Electron microscopy study of Ti-doped sodium aluminum hydride prepared by mechanical milling NaH/Al with Ti powder[J]. Journal of Applied Physics,2006,100(3). |
| APA | X. D. Kang,P. Wang,&H. M. Cheng.(2006).Electron microscopy study of Ti-doped sodium aluminum hydride prepared by mechanical milling NaH/Al with Ti powder.Journal of Applied Physics,100(3). |
| MLA | X. D. Kang,et al."Electron microscopy study of Ti-doped sodium aluminum hydride prepared by mechanical milling NaH/Al with Ti powder".Journal of Applied Physics 100.3(2006). |
入库方式： OAI收割
来源：金属研究所
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