高阳极电势窗口的SnO_2-Sb_2O_3/Ti电极的制备  

Preparation of SnO_2-Sb_2O_3/Ti Electrode with High Anodic Potential Window in Concentrated Alkaline Solution

作　　者：章谚[1] 张存中[1] 吴锋[1] 

机构地区：[1]北京理工大学化工与环境学院,北京100081

出　　处：《化学研究》2006年第1期47-50,共4页Chemical Research

基　　金：国家重点基础研究发展规划(2002CB211800);国家基础研究重大项目前期研究专项(2001CCA05000);北京理工大学基础研究基金(05120404)资助项目

摘　　要：制备了不同热处理温度和涂层次数的SnO2-Sb2O3/Ti电极,研究了不同电极涂层的氧化物组成,涂层表面形貌和阳极电势窗口及其三者的内在关系,考察了不同制备工艺条件的电极对电催化高铁性能的影响.结果表明430℃是电极最佳的热处理温度,涂层次数增加为30次时,电极具有高的阳极电势窗口,同时能降低高铁氧化还原反应的超电势,更真实的展现高铁电化学生成的热力学原貌.The SnO2-Sb2O3/Ti electrodes with different oxide layer and treated at different temperatures were prepared, and the relationship among their oxide components, surface morphologies and anodic potential windows was discussed. The electro-catalytic behavior of ferrate was also studied. The results show that 430 ~C was the optimal temperature and anodic potential window widened markedly by adding the painting number to 30, which helped to reduce the overpotential involved in ferrate reaction, so the electrochemical generation and reduce of ferrate could be exhibited approaching to their thermodynamic process.

关 键 词：SnO2-Sb2O3/Ti电极 阳极电势窗口 循环伏安 高铁酸盐 

分 类 号：O657.1[理学—分析化学]