| 雾化贮氢合金的电化学和表面特性 |
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| 引用本文： | 花均社,刘常升,李谋成,余家康,才庆魁,胡壮麒.雾化贮氢合金的电化学和表面特性[J].东北大学学报(自然科学版),2000,21(3):266-269. |
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| 作者姓名： | 花均社 刘常升 李谋成 余家康 才庆魁 胡壮麒 |
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| 作者单位： | 东北大学材料与冶金学院!辽宁沈阳110006中国科学院金属研究所快速凝固非平衡合金国家重点实验室;辽宁沈阳110015;东北大学材料与冶金学院!辽宁沈阳110006;中国科学院金属腐蚀与防护研究所金属腐蚀与防护国家重点实验室!辽宁沈阳110015;中国科学院金属腐蚀与防护研究所金属腐蚀 |
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| 基金项目： | 辽宁省自然科学基金资助项目! ( 970 2 8) |
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| 摘 要： | 盐酸处理显著改善了雾化合金MlNi36Co07Mn03Al04的初期电化学吸放氢特性和循环伏安特性;用复数非线性拟合程序分析了氢化物电极的电化学阻抗;XPS和AES分析表明,盐酸处理后合金表面形成了富镍层·充电过程中镍被还原成高活性金属镍是雾化合金电化学性能得以改善的主要原因
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| 关 键 词： | 化学处理 贮氢合金 电化学性能 |
| 修稿时间： | : |
Electrochemical and Surface Properties of Hydrogen Storage Alloy Produced by Gas-Atomization Method |
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| HUA Jun-she,LIU Chang-sheng,CAI Qing-kui,LI Mou-cheng,YU Jia-kang,HU Zhuang-qi.Electrochemical and Surface Properties of Hydrogen Storage Alloy Produced by Gas-Atomization Method[J].Journal of Northeastern University(Natural Science),2000,21(3):266-269. |
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| Authors: | HUA Jun-she LIU Chang-sheng CAI Qing-kui LI Mou-cheng YU Jia-kang HU Zhuang-qi |
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| Abstract: | It is shown that the initial electrochemical hydrogen adsorption and desorption performance of hydrogen storage alloy prepared by means of gas atomization are greatly improved by an additional hydrochloric acid treatment. The cyclic voltammetry experiments indicates that the electrochemical activity of the treated alloy electrode is very high. The impedance spectra were analyzed by using a non linear least squares fitting program. AES and XPS measurement show that the additional treatment provides the alloy new surface where a Ni rich layer is formed. This is the main cause why the electrochemical characteristics of the alloy powder with the treatment are significantly improved. |
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| Keywords: | chemical treatment hydrogen storage alloy electrochemical performance |
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