电沉积锌用铅基阳极服役后表面结构演变研究  

Study of Surface Structural Evolution after Lead-based Anodes Used by Electrodeposited Zinc

作　　者：袁绶章[1] 林阳 董伟[1] 陈继园 张兴国 巢书绪 YUAN Shou-zhang;LIN Yang;DONG Wei;CHEN Ji-yuan;ZHANG Xing-guo;CHAO Shu-xu(Kunming Institute of Physics,Kunming,Yunnan 650217,China;Faculty of Material Science and Engineering,Kunming University of Science and Technology,Kunming,Yunnan 650093,China)

机构地区：[1]昆明物理研究所,云南昆明650217 [2]昆明理工大学材料科学与工程学院,云南昆明650093

出　　处：《云南冶金》2024年第2期94-99,共6页Yunnan Metallurgy

基　　金：云南省创新团队项目(2018HC020)。

摘　　要：针对由于析氧反应的过电位对阳极氧化膜的高度依赖性,极大地影响了能耗这一问题,采用扫描电子显微镜(SEM)、能量色散光谱(EDS)、电子探针(EPMA)和X射线衍射(XRD)对Pb基阳极(阳极含量:Pb-0.5%Ag-(0.02~0.03%)Ca-(0.01~0.02%)Sr-(0.01~0.02%)La)的表面形貌、元素分布和织构进行了表征分析,结果表明:服役后的阳极板表面出现了裂纹和大量空洞。同时还观察了阳极泥的形成可能会导致阳极表面的钝化,影响了其电化学性能。The overpotential of oxygen evolution reaction has a high dependency on anode oxidation film,it has a dramatical influence on energy consumption,then using a scanning electron microscope(SEM),an energy-dispersive spectrometer(EDS),an electronic probe(EPMA),and X-ray powder diffraction(XRD)for representation analysis of surface topography,element distribution,and texture of Pb base anode(anode content:Pb-0.5%Ag-(0.02~0.03%)Ca-(0.01~0.02%)Sr-(0.01~0.02%)La),results show that there are cracks and a large number of voids appearing on the used anode plate surface.Simultaneously,this can be seen by watching that the formation of anode slime may lead to surface passivation of anode,and affect its electrochemistry performance.

关 键 词：电沉积 锌 铅基阳极 服役性能 表面结构 

分 类 号：TF803.27[冶金工程—有色金属冶金]