| 微电极定量方法评价贮氢合金的电化学性质 |
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| 引用本文： | 胡蓉晖,杨汉西.微电极定量方法评价贮氢合金的电化学性质[J].电化学,1996,2(4):391-396. |
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| 作者姓名： | 胡蓉晖 杨汉西 |
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| 作者单位： | 武汉大学化学系 |
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| 基金项目： | 国家863计划新材料领域资助 |
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| 摘 要： | 本文介绍了评价贮氢合金电化学性能的粉末微电极定量方法，贮氢合金粉末微电极的电极厚度和半径仅几十微米，材料用量约几微克，从而降低了欧姆极化和液相浓度极化，排除了粘结剂等电极工艺对性能的影响。
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| 关 键 词： | 微电极 贮氢合金 循环伏安 电流阶跃 电化学性能 |
Quantitative Evaluation of Electrochemical Properties of MH alloy by powder microelectrode |
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| Hu Ronghui,Yang Hanxi Liu Jingcheng Li Shengxian Cha Chuanxin.Quantitative Evaluation of Electrochemical Properties of MH alloy by powder microelectrode[J].Electrochemistry,1996,2(4):391-396. |
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| Authors: | Hu Ronghui Yang Hanxi Liu Jingcheng Li Shengxian Cha Chuanxin |
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| Institution: | Hu Ronghui * Yang Hanxi Liu Jingcheng Li Shengxian Cha Chuanxin |
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| Abstract: | In this paper, a quantitative method by use of powder microelectrode combined with cyclic voltammetry and galvanostatic step is described for studying the electrochemical performance characteristic of hydrogen storage alloy(MH). Since the powder microelectrode uses only MH powder and has its depth and diameter of several tens of micrometer, the ohmic and concentration ploarization are greatly reduced and the influences of the technical factors in electrode preparation on the material performance are simply eliminated. Thus, with accurate determination of the load quantity of MH alloy in power microelectrode by absorption spectrometric technique, it is feasible to evaluate quickly and quantitatively the electrochemical properties of MH alloy as negative electrode material. |
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| Keywords: | Powder microelectrode Hydrogen storage alloy Cyclic voltammetry Galvanostatic step |
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