KH plus Ti co-doped NaAlH(4) for high-capacity hydrogen storage
文献类型：期刊论文
| 作者 | P. Wang ; X. D. Kang ; H. M. Cheng |
| 刊名 | Journal of Applied Physics
 |
| 出版日期 | 2005 |
| 卷号 | 98期号:7 |
| ISSN号 | 0021-8979 |
| 关键词 | sodium aluminum-hydride x-ray-diffraction metal-hydrides titanium alanates zirconium state behavior powder dehydrogenation |
| 中文摘要 | A method for preparation of Ti-doped NaAlH(4) with high hydrogen capacity was developed, in which the NaH/Al mixture was mechanically milled with a catalytic amount of KH together with metallic Ti. The addition of KH was found to result in a pronounced improvement in the dehydriding performance of the Na(3)AlH(6)/NaH+Al step. As a result, the practical cycling hydrogen capacity has been markedly enhanced from 3.3 wt % for the Ti-doped hydride to 4.7 wt % for KH+Ti co-doped material. Moreover, the pronounced enhancement on hydrogen capacity arising upon adding KH was observed to persist in the following dehydrogenation/hydrogenation cycles. Structural investigation shows that the addition of KH has led to a lattice expansion. Moreover, it was found that the enthalpy change of the Na(3)AlH(6)/NaH+Al decomposition step underwent a considerable decrease upon adding KH. Therefore, the observed property improvement may be ascribed to a favorable thermodynamic adjustment arising upon the addition of KH. (c) 2005 American Institute of Physics. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35088]  |
| 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 | P. Wang,X. D. Kang,H. M. Cheng. KH plus Ti co-doped NaAlH(4) for high-capacity hydrogen storage[J]. Journal of Applied Physics,2005,98(7). |
| APA | P. Wang,X. D. Kang,&H. M. Cheng.(2005).KH plus Ti co-doped NaAlH(4) for high-capacity hydrogen storage.Journal of Applied Physics,98(7). |
| MLA | P. Wang,et al."KH plus Ti co-doped NaAlH(4) for high-capacity hydrogen storage".Journal of Applied Physics 98.7(2005). |
入库方式： OAI收割
来源：金属研究所
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