| 锌电极组织结构对其电化学性能的影响 |
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| 引用本文： | 王华清,徐晓刚,陈昌国,曹均莲,金钊.锌电极组织结构对其电化学性能的影响[J].材料热处理学报,2008(6). |
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| 作者姓名： | 王华清 徐晓刚 陈昌国 曹均莲 金钊 |
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| 作者单位： | 重庆通信学院动力发电教研室;重庆大学化学化工学院;重庆市江津区第五中学; |
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| 摘 要： | 在对金属锌进行变形、退火等处理的基础上,用金相法、X射线衍射法、循环伏安法等,分析了金属锌的组织与电化学性能的关系。结果表明:晶界、位错等缺陷会提高锌的溶解速度,同时电极表面的位错对还原过程中锌原子的沉积有利;晶粒的增大会减小晶界面积,使得锌电极的晶间腐蚀等局部腐蚀加剧,降低锌电极的耐蚀性,但是晶粒尺寸对电极电化学性能的影响相对于位错及其他缺陷要小得多。
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| 关 键 词： | 晶粒 织构 缺陷 耐蚀性 循环伏安 |
Microstructure of zinc electrode and its influence on electrochemical performance |
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| WANG Hua-qing,XU Xiao-gang,CHEN Chang-guo,CAO Jun-lian,JIN Zhao.Microstructure of zinc electrode and its influence on electrochemical performance[J].Transactions of Materials and Heat Treatment,2008(6). |
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| Authors: | WANG Hua-qing XU Xiao-gang CHEN Chang-guo CAO Jun-lian JIN Zhao |
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| Affiliation: | WANG Hua-qing1,XU Xiao-gang1,CHEN Chang-guo2,CAO Jun-lian3,JIN Zhao1(1.College of Chongqing Communication,Chongqing 400035,China,2.College of Chemical Engineering,Chongqing University,Chongqing 400044,3.No.5 Middle School of the Jiangjin Territory,Chongqing 402200,China) |
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| Abstract: | The relationship between microstructure and electrochemical performance of zinc electrode was studied by metallographic examination,XRD and cyclic voltammetry.The results show that a great deal of defect such as grain boundary and dislocation in zinc electrode accelerates the dissolution of zinc and is favorable for electrodeposition of zinc atoms during the deoxidization.The area of the grain boundary decreases due to grain growth,and as a result,the local corrosion,such as intercrystalline corrosion,is ag... |
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| Keywords: | grain texture defect corrosion resistance cyclic voltammetry |
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