Crystallographic and electrochemical characteristics of la0.7mg0.3ni4.5-x(al0.5mo0.5) (x=0-0.8) 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 | European journal of inorganic chemistry
 |
| 出版日期 | 2005-06-06 |
| 期号 | 11页码:2235-2241 |
| 关键词 | High-rate dischargeability Low-temperature dischargeability Exchange current density Hydrogen diffusion coefficient Alloys X-ray diffraction |
| ISSN号 | 1434-1948 |
| DOI | 10.1002/ejic.200400810 |
| 通讯作者 | Zhao, ms() |
| 英文摘要 | The structure, hydrogen storage property, and electrochemical characteristics of the la(0.)7mg(0.)3ni(4.5-x)(al0.5mo0.5). (x = 0, 0.2, 0.4, 0.6, 0.8) hydrogen storage alloys have been investigated systematically. the x-ray powder diffraction and rietveld analysis results reveal that all the alloys mainly consist of the la(la, mg)(2)ni-9 phase and the lani5 phase. the electrochemical measurements show that the maximum discharge capacity increases first from 246.3 (x = 0) to 345.4 mah/g (x = 0.6) and then decreases to 317.6 mah/g (x = 0.8), which is consistent with the variation of the hydrogen storage capacity indicated by the p-c isotherms. for the discharge current density of 1200 ma/g, the high-rate dischargeability of the alloy electrodes increases linearly from 47.2 % (x = 0) to 73.8 % (x = 0.8). moreover, according to the linear polarization curves, the exchange current density of the alloy electrodes also increases monotonously with increasing x. the hydrogen diffusion coefficient increases with increasing al and mo content, and thus increases the low-temperature discharge ability of the alloy electrodes. (c) wiley-vch verlag gmbh & co. |
| WOS关键词 | METAL HYDRIDE ELECTRODES ; PUNI3-TYPE STRUCTURE ; BATTERIES ; CAPACITY ; LAMG2NI9 ; PHASE |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Inorganic & Nuclear |
| 语种 | 英语 |
| WOS记录号 | WOS:000229722200028 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2378363 |
| 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, Grad Sch, Key Lab Rare Earth Chem & Phys, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, Grad Sch, State Key Lab Electroanalyt Chem, 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 la0.7mg0.3ni4.5-x(al0.5mo0.5) (x=0-0.8) hydrogen storage alloys[J]. European journal of inorganic chemistry,2005(11):2235-2241. |
| APA | Zhang, XB,Sun, DZ,Yin, WY,Chai, YJ,&Zhao, MS.(2005).Crystallographic and electrochemical characteristics of la0.7mg0.3ni4.5-x(al0.5mo0.5) (x=0-0.8) hydrogen storage alloys.European journal of inorganic chemistry(11),2235-2241. |
| MLA | Zhang, XB,et al."Crystallographic and electrochemical characteristics of la0.7mg0.3ni4.5-x(al0.5mo0.5) (x=0-0.8) hydrogen storage alloys".European journal of inorganic chemistry .11(2005):2235-2241. |
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来源：中国科学院大学
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