Crystallographic and electrochemical characteristics of la0.7mg0.3ni3-x(al0.5mo0.5)x (x=0-0.4) hydrogen storage alloys
文献类型：期刊论文
| 作者 | Zhang, XB; Sun, DZ; Yin, WY; Chai, YJ; Zhao, MS |
| 刊名 | Electrochimica acta
 |
| 出版日期 | 2005-05-30 |
| 卷号 | 50期号:16-17页码:3407-3413 |
| 关键词 | Hydrogen storage alloy Metal hydride electrode Crystal structure Electrochemical properties |
| ISSN号 | 0013-4686 |
| DOI | 10.1016/j.electacta.2004.12.020 |
| 通讯作者 | Zhao, ms() |
| 英文摘要 | The effect of partial substitution of al and mo for ni on the structure and electrochemical properties of the la0.7mg0.3ni3-x(al0.5mo0.5)(x) (x = 0-0.4) hydrogen storage alloys have been investigated systematically. the result of x-ray powder diffraction (xrd) and rietveld analysis show that all the alloys consist of the la(la, mg)(2)ni-9 phase and the lani5 phase. meanwhile, the lattice parameter and the cell volume of both the la(la, mg)(2)ni-9 phase and the lani5 phase increase with increasing al and mo contents in the alloys. the pressure composition isotherms curves indicate that the hydrogen storage capacity first increases and then decreases with increasing x. the electrochemical measurements show that the maximum discharge capacity of the alloy electrodes first increases from 343.3 (x = 0) to 377.6 mah/g (x = 0.3) and then decreases to 350.4 mah/g (x = 0.4). moreover, the high rate dischargeability (hrd) and the exchange current density of the alloy electrodes decrease first and then increases with the increase of x in the alloys. the hydrogen diffusion coefficient increases with increasing al and mo content and thus increases the low temperature dischargeability (ltd) of the alloy electrodes. © 2004 elsevier ltd. all rights reserved. |
| WOS关键词 | METAL HYDRIDE ELECTRODES ; PUNI3-TYPE STRUCTURE ; MN CONTENT ; CAPACITY ; LAMG2NI9 ; BATTERIES ; PHASE |
| WOS研究方向 | Electrochemistry |
| WOS类目 | Electrochemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000229570300027 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2377793 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhao, MS |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab Rare Earth Chem & Phys, Grad Sch, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Grad Sch, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, XB,Sun, DZ,Yin, WY,et al. Crystallographic and electrochemical characteristics of la0.7mg0.3ni3-x(al0.5mo0.5)x (x=0-0.4) hydrogen storage alloys[J]. Electrochimica acta,2005,50(16-17):3407-3413. |
| APA | Zhang, XB,Sun, DZ,Yin, WY,Chai, YJ,&Zhao, MS.(2005).Crystallographic and electrochemical characteristics of la0.7mg0.3ni3-x(al0.5mo0.5)x (x=0-0.4) hydrogen storage alloys.Electrochimica acta,50(16-17),3407-3413. |
| MLA | Zhang, XB,et al."Crystallographic and electrochemical characteristics of la0.7mg0.3ni3-x(al0.5mo0.5)x (x=0-0.4) hydrogen storage alloys".Electrochimica acta 50.16-17(2005):3407-3413. |
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