| 电镀Zn-In合金在碱性溶液中的电化学行为 |
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| 引用本文： | 周合兵,梁曼,吕东生,许梦清,李伟善. 电镀Zn-In合金在碱性溶液中的电化学行为[J]. 金属学报, 2011, 0(8) |
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| 作者姓名： | 周合兵 梁曼 吕东生 许梦清 李伟善 |
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| 作者单位： | 华南理工大学材料科学与工程学院;电化学储能材料与技术教育部工程研究中心;广东省高等学校电化学储能与发电技术重点实验室; |
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| 基金项目： | 广东省自然科学基金项目10351063101000001和10451063101006346资助~~ |
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| 摘 要： | 用电沉积的方法在Ni基体上制得了Zn-In合金,采用ICP,SEM和EDS研究了电镀Zn-In合金的组织和成分,采用LSV,CV和EIS等方法研究了不同镀时下电镀Zn-In合金在碱性溶液中的电化学行为.结果表明,沉积时间越长,合金中In的含量越高;与镀时为20和30 min相比,10 min为较佳镀时,在此镀时下,Ni基体表面能形成均匀平整的Zn-In合金,延长镀时,会因为局部In颗粒生长过快使Zn-In合金均匀性变差;Zn-In合金中的In能提高Zn电极的析氢过电位,增加Zn阳极溶解电阻,可有效抑制Zn自腐蚀共轭反应的两支;当Zn活化溶解时,In的存在还提供了骨架的作用,为OH~-通过合金表面跟内层的Zn反应提供了通道,使得Zn的致钝电位发生正移,活化电位区间也得到拓宽,Zn的钝化得到延缓,放电深度得到加强,放电容量得到提高;Zn的活化溶解产物易于在In电极表面还原,Zn的充放电性能得到改善.
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| 关 键 词： | 电镀 Zn-In合金 碱性溶液 电化学行为 |
ELECTROCHEMICAL BEHAVIORS OF ZINC-INDIUM ALLOY ELECTROPLATING IN ALKALINE SOLUTIONS |
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| ZHOU Hebing),LIANG Man) ) School of Materials Science , Engineering,South China University of Technology,Guangzhou ) Engineering Research Center of Materials , Technology for Electrochemical Energy Storage,South China Normal University,Guangzhou ) Key Laboratory of Electrochemical Technology on Energy Storage , Power Generation of Guangdong Higher Education Institutes,South China Normal Un.... ELECTROCHEMICAL BEHAVIORS OF ZINC-INDIUM ALLOY ELECTROPLATING IN ALKALINE SOLUTIONS[J]. Acta Metallurgica Sinica, 2011, 0(8) |
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| Authors: | ZHOU Hebing) LIANG Man) ) School of Materials Science Engineering South China University of Technology Guangzhou ) Engineering Research Center of Materials Technology for Electrochemical Energy Storage South China Normal University Guangzhou ) Key Laboratory of Electrochemical Technology on Energy Storage Power Generation of Guangdong Higher Education Institutes South China Normal Un... |
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| Affiliation: | ZHOU Hebing~),LIANG Man~) 1) School of Materials Science , Engineering,South China University of Technology,Guangzhou 510641 2) Engineering Research Center of Materials , Technology for Electrochemical Energy Storage,South China Normal University,Guangzhou 510631 3) Key Laboratory of Electrochemical Technology on Energy Storage , Power Generation of Guangdong Higher Education Institutes,South China Normal Un... |
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| Abstract: | Zinc-indium alloy electrodes based on nickel substrate were prepared by a simple electroplating technique.The content of indium element in zinc-indium alloy became higher with increase in electroplating time.The effects of indium in zinc-indium alloy coating with different electroplating times on the electrochemical behaviors of zinc in alkaline solutions were investigated by inductively coupled ICP,SEM,EDS,LPS,CV and EIS.The results showed that ten minutes was the best electroplating time among the investi... |
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| Keywords: | electroplate zinc-indium alloy alkaline electrolyte electrochemical behavior |
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