V(IV)在石墨电极上的阳极氧化动力学  

Study of the kinetics of anodic oxidation on graphite electrode for V(IV) in sulfuric acid solution

作　　者：罗冬梅[1] 康晓雪[1] 许茜[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110004

出　　处：《电源技术》2006年第3期227-230,共4页Chinese Journal of Power Sources

基　　金：辽宁省自然科学基金资助项目(99106003);国家教育部留学回国人员启动基金资助项目(无编号)

摘　　要：在石墨电极上采用线性扫描法对V(IV)的阳极氧化反应机理进行了研究。测得V(IV)在硫酸溶液中氧化反应稳态极化曲线,研究了钒离子浓度、硫酸浓度和温度对极化曲线的影响;计算出反应动力学参数,交换电流密度为5.26×10-5A/cm2。V(IV)的氧化反应机理研究表明,V(IV)氧化反应存在一个电子转移和两个质子转移。The kinetics and mechanism of anodic oxidation on graphite electrode for V（IV） was studied by using linear sweep voltammetry. The polarization curves of the oxidation for V（IV） in sulfuric acid solution were obtained with various V（IV） concentrations, H2SO4 concentrations and temperatures. The exchange current density was calculated as 5.26×10^-5A/cm^2. The results indicated that the mechanism of V（IV） oxidation is the reaction with one-electron transfer and two-proton transfer.

关 键 词：钒电池 极化曲线 阳极氧化 反应机理 

分 类 号：TM912.1[电气工程—电力电子与电力传动]