Effect of ball-milling time on the electrochemical properties of La-Mg-Ni-based hydrogen storage composite alloys
文献类型：期刊论文
| 作者 | Chu, Hai-Liang1,2; Qiu, Shu-Jun1,2; Tian, Qi-Feng3; Sun, Li-Xian1; Zhang, Yao1; Xu, Fen1; Liu, Ying-Ya1,2; Qi, Yan-Ni1,2; Fan, Mei-Qiang1,2 |
| 刊名 | international journal of hydrogen energy
 |
| 出版日期 | 2007-12-01 |
| 卷号 | 32期号:18页码:4925-4932 |
| 关键词 | Ni/MH batteries La-Mg-Nihydrogen storage alloy composite material electrochemical properties cyclic stability |
| 英文摘要 | in the present study, the effect of ball-milling time on the structure and the overall electrochemical properties of the novel la - mg - ni-based hydrogen storage composite alloys was investigated systematically. it is found that, from the results of x-ray diffraction (xrd) and scanning electron microscopy (sem), the composite alloy is formed after ball milling the homogenous mixture of both la(0.7)mg(0.3)ni(3.5) alloy and ti(0.17)zr(0.8)v(0.35)cr(0.1)ni(0.3) alloy for different times. in these composite alloys, both la(0.7)mg(0.3)ni(3.5) and ti(0.17)zr(0.8)v(0.35)cr(0.1)ni(0.3) alloys basically maintain their respective original phase structures. the electrochemical studies show that the cyclic life of the composite alloy electrodes is improved with increasing ball-milling time, especially for the sample ball-milled for 120min. after 100 charge - discharge cycles, the capacity retention rate c(100)/c(max) increases from 62.4% (30 min) to 80.3% (120 min), which can be ascribed to the enhanced anti-corrosion performance of electrode in koh solution. moreover, the electrochemical impedance spectra (eis) and linear polarization (lp) measurements indicate that the kinetics of electrochemical hydrogen reaction is also improved with the increase of ball-milling time. (c) 2007 international association for hydrogen energy. published by elsevier ltd. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; electrochemistry ; energy & fuels |
| 研究领域[WOS] | chemistry ; electrochemistry ; energy & fuels |
| 关键词[WOS] | metal hydride electrodes ; solid-solution alloys ; microstructure ; batteries ; substitution ; capacity ; network ; ratio ; mn ; fe |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000252259500037 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/140673]  |
| 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 & Thermmochem Lab, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.Wuhan Inst Technol, Hubei Key Lab Novel Chem Reactor & Green Chem Tec, Wuhan 430073, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chu, Hai-Liang,Qiu, Shu-Jun,Tian, Qi-Feng,et al. Effect of ball-milling time on the electrochemical properties of La-Mg-Ni-based hydrogen storage composite alloys[J]. international journal of hydrogen energy,2007,32(18):4925-4932. |
| APA | Chu, Hai-Liang.,Qiu, Shu-Jun.,Tian, Qi-Feng.,Sun, Li-Xian.,Zhang, Yao.,...&Fan, Mei-Qiang.(2007).Effect of ball-milling time on the electrochemical properties of La-Mg-Ni-based hydrogen storage composite alloys.international journal of hydrogen energy,32(18),4925-4932. |
| MLA | Chu, Hai-Liang,et al."Effect of ball-milling time on the electrochemical properties of La-Mg-Ni-based hydrogen storage composite alloys".international journal of hydrogen energy 32.18(2007):4925-4932. |
入库方式： OAI收割
来源：大连化学物理研究所
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