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| 雾化贮氢合金的电化学活化性能 | |
| 引用本文： | 花均社,李谋成,侯万良,余家康,才庆魁,胡壮麒. 雾化贮氢合金的电化学活化性能[J]. 材料研究学报, 2001, 15(2): 179-184 |
| 作者姓名： | 花均社 李谋成 侯万良 余家康 才庆魁 胡壮麒 |
| 作者单位： | 1. 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;东北大学 2. 中国科学院金属研究所金属腐蚀与防护国家重点实验室 3. 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 4. 东北大学 |
| 基金项目： | 国家自然科学基金项目59671027 |
| 摘 要： | 用铝盐水溶液对雾化贮氢合金的表面进行化学处理，以改善其电化学活性，结果表明，处理后的雾化合金第一周期放电容量即达到231mA.h.g^-1，未处理合金的第五周期放电容量只有185mA.h.g^-1，AES和XPS分析表明，表面氧化层的性质是影响雾化合金在碱溶液中活化的重要因素。 |
| 关 键 词： | 气体雾化 贮氢合金 化学处理 表面处理 电化学活化性能 铝盐水溶液 |
| 文章编号： | 1005-3093(2001)02-0179-06 |
| 修稿时间： | 2000-03-02 |
ELECTROCHEMICAL ACTIVATION BEHAVIOR OF HYDROGEN STORAGE ALLOY PRODUCED BY GAS-ATOMIZATION METHOD |
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| HUA Junshe,LI Moucheng,HOU Wanliang,YU Jiakang CAI Qingkui,HU Zhuangqi. ELECTROCHEMICAL ACTIVATION BEHAVIOR OF HYDROGEN STORAGE ALLOY PRODUCED BY GAS-ATOMIZATION METHOD[J]. Chinese Journal of Materials Research, 2001, 15(2): 179-184 | |
| Authors: | HUA Junshe LI Moucheng HOU Wanliang YU Jiakang CAI Qingkui HU Zhuangqi |
| Abstract: | In order to improve the initial electrochemical activity of the hydrogen storage alloy prepared by means of gas-atomization method, the alloy powder surface was treated by an Al3+containing aqueous solution and the electrochemical properties of the alloy powder before and after treatment were measured. It was found that surface treatment was significantly effective on improving the initial electrochemical properties of the alloy powder. For the treated alloy. the initial discharge capacity reached 231mA.h.g-1, but only 185mA.h.g-1 for the non-treated alloy even at the fifth cycle of charge-discharge. AES and XPS results showed that the oxide layer formed on the surface plays a key role on the activation process of the gas-atomized alloy in alkaline solution. |
| Keywords: | gas-atomization hydrogen storage alloy chemical treatment |
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