Investigation on the structure and electrochemical properties of AB(3)-type La-Mg-Ni-Co-based hydrogen storage composites
文献类型：期刊论文
| 作者 | Qiu, Shu-Jun1,2; Chu, Hai-Liang1,2; Zhang, Yao1; Qi, Yan-Ni1,2; Sun, Li-Xian1; Xu, Fen1 |
| 刊名 | journal of alloys and compounds
 |
| 出版日期 | 2008-08-25 |
| 卷号 | 462期号:1-2页码:392-397 |
| 关键词 | hydrogen storage alloy AB(3)-type electrode alloy composite material cyclic stability electrochemical characteristic |
| 英文摘要 | the la0.7mg0.3ni2.75co0.75 and ti0.17zr0.08v0.35cr0.1ni0.3 alloys were prepared by vacuum magnetic levitation melting and the la-mg-ni-co-based composites containing ti0.17zr0.08v0.35cr0.1ni0.3 with different weight ratios (5, 10, 15 and 20%) were successfully synthesized by ball milling method. the xrd analyses showed that all these composites mainly consisted of the (la, mg)ni-3 phase with the rhombohedral puni3-type structure and the lani5 phase with the hexagonal cacu5-type structure, the cell volumes of the (la, mg)ni3 phase increased with the increasing ti0.17zr0.08v0.35cr0.1ni0.3 weight ratio, while the cell volumes of lani5 phase decreased. the electrochemical measurements showed that the maximum discharge capacity of the composites decreased, and the cycling life improved distinctly with increasing ti0.17zr0.08v0.35cr0.1ni0.3 weight ratio, which can be ascribed to the improved anti-corrosion performance of composite electrode in koh solution. however, the electrochemical impedance spectroscopy (eis) and anodic polarization (ap) measurements showed that the kinetics of composite electrodes was retarded with the increase of ti0.17zr0.08v0.35cr0.1ni0.3 amount. these results suggest that the formation of composite with ti0.17zr0.08v0.35cr0.1ni0.3 alloy is a promising strategy for improving the cyclic life of ab(3)-type la-mg-ni-co-based alloy. (c) 2007 elsevier b.v. all fights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; materials science, multidisciplinary ; metallurgy & metallurgical engineering |
| 研究领域[WOS] | chemistry ; materials science ; metallurgy & metallurgical engineering |
| 关键词[WOS] | metal hydride electrodes ; solid-solution alloys ; capacity ; substitution ; lamg2ni9 ; phase ; performance ; impedance ; network ; mn |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000258076300079 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/140932]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Mat & Thermochem Lab, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qiu, Shu-Jun,Chu, Hai-Liang,Zhang, Yao,et al. Investigation on the structure and electrochemical properties of AB(3)-type La-Mg-Ni-Co-based hydrogen storage composites[J]. journal of alloys and compounds,2008,462(1-2):392-397. |
| APA | Qiu, Shu-Jun,Chu, Hai-Liang,Zhang, Yao,Qi, Yan-Ni,Sun, Li-Xian,&Xu, Fen.(2008).Investigation on the structure and electrochemical properties of AB(3)-type La-Mg-Ni-Co-based hydrogen storage composites.journal of alloys and compounds,462(1-2),392-397. |
| MLA | Qiu, Shu-Jun,et al."Investigation on the structure and electrochemical properties of AB(3)-type La-Mg-Ni-Co-based hydrogen storage composites".journal of alloys and compounds 462.1-2(2008):392-397. |
入库方式： OAI收割
来源：大连化学物理研究所
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