钛-铜基阳极表面电势分布及其电化学性能  

Surface Potential Distribution and Electrochemical Properties of Ti-Cu-Based Anodes

作　　者：黄文芳[1] 竺培显[1] 杨秀琴[1] 周生刚[1] 许健[1] 张瑾[1] 

机构地区：[1]昆明理工大学,云南昆明650093

出　　处：《稀有金属材料与工程》2011年第10期1844-1847,共4页Rare Metal Materials and Engineering

基　　金：国家自然科学基金项目(50664005);国家高技术研究发展计划项目(2009AA032512);云南省科技厅联合支持项目(2009GA007)

摘　　要：提出利用钛-铜层状复合材料替代传统钛电极单一钛基体,对比研究其涂层电极与传统钛涂层电极的性能差异,分析了电极的表面电势分布和线性扫描伏安(LSV)曲线。结果表明:钛-铜基涂层电极对基体材料的改进,提高了电极的导电性,有利于均化电极表面电势分布和电流分布,提高了极板的电催化活性,同时具有优良的高电流密度反应稳定性。应用于电解工业时,钛-铜基涂层电极能有效地降低槽电压,提高工作电流密度,从而提高电流效率和时效产率。Substitution of Ti-Cu-layered composite materials for single-titanium substrates in traditional titanium electrodes was proposed,and the different performances between the novel electrode and the traditional Ti coated electrodes were investigated.The potential distribution over the electrode surface and linear scanning voltammetry curves were analyzed.The results show that the Ti-Cu-based coated electrode possesses higher conductivity due to its new substrate material,which is conducive to both potential distribution and current distribution over the electrode surface.The Ti-Cu-based coated electrode has better electrocatalytic activity,as well as excellent reaction stability under high-current density.When used in electrolysis industry,the novel electrode can reduce the electrolysis voltage and increase current density,thus enhancing the current efficiency and the productivity.

关 键 词：钛-铜层状复合材料 不溶性阳极 电势分布 电催化活性 

分 类 号：O646.5[理学—物理化学]