| Effects of sputtering conditions on electrochemical behavior and physical properties of Ni-Mo alloy electrode |
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| 作者单位： | Key Laboratory of Luminescence and Optical Information Ministry of Education，Institute of Optoelectronic Technology，Beijing Jiaotong University，Key Laboratory of Luminescence and Optical Information，Ministry of Education，Institute of Optoelectronic Technology，Beijing Jiaotong University，Beijing Solar Energy Research Institute，Beijing Solar Energy Research Institute，Beijing Solar Energy Research Institute，Beijing 100044，China，Beijing 100044，China，Beijing 100083，China，Beijing 100083，China，Beijing 100083，China |
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| 基金项目： | 国家重点基础研究发展计划(973计划);北京交通大学校科研和教改项目 |
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| 摘 要： | 1 Introduction Many transition metal alloys with binary and ternary compositions have been studied as hydrogen evolution reaction electrodes in water electrolysis[1- 6]. The activity of such metal alloys for the hydrogen evolution reaction depends on at l…
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| 关 键 词： | 氢渐近反应 过电压 Ni-Mo合金电极 物理性能 电化学 |
| 收稿时间： | 2005-11-15 |
| 修稿时间： | 2006-03-02 |
Effects of sputtering conditions on electrochemical behavior and physical properties of Ni-Mo alloy electrode |
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| HUANG Jin-zhao,XU Zheng,LI Hai-ling,KANG Guo-hu,WANG Wen-jing. Effects of sputtering conditions on electrochemical behavior and physical properties of Ni-Mo alloy electrode[J]. Transactions of Nonferrous Metals Society of China, 2006, 16(5): 1092-1096. DOI: 10.1016/S1003-6326(06)60383-X |
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| Authors: | HUANG Jin-zhao XU Zheng LI Hai-ling KANG Guo-hu WANG Wen-jing |
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| Affiliation: | 1. Science Institute, University of Iceland, Dunhaga 3, IS-107 Reykjavik, Iceland;2. Department of Physics and Astronomy, Uppsala University, Box 530, S-751 21 Uppsala, Sweden;3. University of Michigan–Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai 200240, China |
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| Abstract: | Sputtering method was used to prepare Ni-Mo alloy electrodes for hydrogen production in alkaline solution. The influences of the working pressure during deposition and the substrate temperature on the electrochemical behavior of electrode were characterized by steady-state polarization plot and Tafel polarization curve measurements. And the physical properties of electrodes were characterized by XRD, SEM, AFM and EDS. It is found that the overpotential is significantly influenced by the working pressure which affects critically the electrode surface morphology, and two Tafel regions are observed for each sample. The overpotential value does not change very much with the substrate temperature. The XRD results indicates that the electrodes should be considered nanocrystalline. Thornton model for the microstructure of sputter-deposited electrodes is referred to explain the observed microstructure change. |
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| Keywords: | hydrogen evolution reaction overpotential Ni-Mo alloy electrode |
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