电沉积MnO₂工艺因素对PbO₂-Ti/MnO₂电极性能的影响

来源期刊：中南大学学报(自然科学版)1991年第2期

论文作者：陈振方 蒋汉瀛 舒余德 陈新民

文章页码：207 - 214

关键词：电沉积; 二氧化锰; 电催化; 寿命; 阳极析氧反应

Key words：electrodepositing; manganese dioxide; electrocatalysis; lifetime; oxygen evolution reaction

摘    要：文中研究了电沉积MnO₂工艺条件及热处理对PbO₂-Ti/MnO₂电极电催化析氧性能及寿命的影响。实验结果表明,低电流密度(0.01～0.06A/dm²)下电沉积MnO₂得到的电极的电催化性能好、寿命长。热处理能改善电极的电催化性能,并能大大延长电极的寿命。电沉积MnO₂动力学研究、电极表面MnO₂显微组织分析、断面PbO₂与MnO₂结合状态的研究,均阐明了这种影响的微观实质。

Abstract: The electrode made by electrodepositing manganese dioxide on PbO₂-Ti at low current density (0. 01～0. 06 A/dm²) shows good catalytic activity for OER (oxygen evolution reaction) and longer lifetime. The catalytic activity can be hoproved and lifetime can be greatly prolonged by heat treatment of the electrode. The essence of this effect has been interpreted by the study of the kinetics of electrodepositing manganese dioxide, the microstructure of the layer of manganese dioxide and the interface between the oxides of lead and manganese.