| 碱液中镍电极的析氢机理 |
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| 引用本文： | 高鹏,胡晨,朱永明,屠振密. 碱液中镍电极的析氢机理[J]. 材料保护, 2010, 43(12) |
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| 作者姓名： | 高鹏 胡晨 朱永明 屠振密 |
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| 作者单位： | 哈尔滨工业大学(威海)海洋学院应用化学系,山东,威海,264209;哈尔滨工业大学(威海)海洋学院应用化学系,山东,威海,264209;哈尔滨工业大学(威海)海洋学院应用化学系,山东,威海,264209;哈尔滨工业大学(威海)海洋学院应用化学系,山东,威海,264209 |
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| 摘 要： | 研究镍电极在碱液中的析氢机理对开发二次清洁能源有指导意义,过去对其研究不够.通过Tafel曲线和电化学阻抗谱对镍电极在KOH溶液中的析氢机理进行了研究.结果表明,过电位低于600 mV时,析氢服从复合脱附机理,反应历程为电化学步骤+复合脱附步骤;过电位高于600 mV时,析氢服从迟缓放电机理或电化学脱附机理,反应历程为电化学步骤+电化学脱附步骤.
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| 关 键 词： | 镍电极 析氢机理 碱液 反应历程 |
Hydrogen Evolution Mechanism of Nickel Electrode in Alkaline Solution |
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| GAO Peng,HU Chen,ZHU Yong-ming,TU Zhen-mi. Hydrogen Evolution Mechanism of Nickel Electrode in Alkaline Solution[J]. Journal of Materials Protection, 2010, 43(12) |
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| Authors: | GAO Peng HU Chen ZHU Yong-ming TU Zhen-mi |
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| Affiliation: | GAO Peng,HU Chen,ZHU Yong-ming,TU Zhen-mi(Department of Applied Chemistry,Harbin Institute of Technology at Weihai,Weihai 264209,China). |
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| Abstract: | In view of the importance of studying the hydrogen evolution mechanism of Ni electrode in alkaline solution to the development of secondary clean energy,the hydrogen evolution mechanism of Ni electrode in KOH solution was studied by measuring Tafel curves and electrochemical impedance spectra.It was found that at an over-potential of below 600 mV,the hydrogen evolution reaction conformed to the composite desorption mechanism,and the reaction process consisted of an electrochemical step and a composite desor... |
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| Keywords: | nickel electrode hydrogen evolution mechanism alkaline solution reaction process |
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