摘要
在含有硫酸铜的硫酸体系中，通过稳态动电位扫描和循环伏安扫描，研究了涂层钛阳极在不同ｐＨ值及不同温度下的稳态极化曲线．得出氢离子反应级数为—１／２，反应表观活化能大于２５．１２ｋＪ／ｍｏｌ，表明电极过程为非扩散控制．并且观察到电极表面存在不可逆性强的铜反应区和放氧区．
The anode polarization curves under various pH and temperatures have been studied by the steady-state potentiodynamic scanning and cyclic voltammetry in the sulphuric acid system containing copper sulphate. It is shown that the order of the reaction of hydrogen ion is-1/2 and the apparent activation energy is higher than 25.12kJ/mol, indicating that diffusion is not the control step of the reaction. In addition,irreversible copper deposition-dissociation region and oxygen evolution region on the electrode surface have been observed.
出处
《广东有色金属学报》
1996年第1期45-50,共6页
Journal of Guangdong Non-Ferrous Metals
