铅电极在硫酸溶液中的光电化学行为

研究了铅电极在阳极氧化过程中光响应的产生机制。结果表明，Ｐｂ电极在光照氧化时存光活化过程，且光经过程须在电位高于０Ｖ时才能发生。采用现场测量光电压技术研究了Ｐｂ电极在硫酸溶液中的恒电流极化过程。

The Photoelectrochemical Behavior of Lead Electrodes in H_2SO_4 Solution

The mechanism of photoresponse during the anodic oxidation of Pb electrode was investigated.The results showed that there was photoactivation during the oxidation of Pb electrode under illumination when the electrode potential was over 0 V.The study of the cathodic photoresponse of lead anodic films in the cathodic potential region showed that the lead anodic films could produce cathodic and anodic photocurrents. The cathodic photocurrent was produced by p-type lead oxide in the film, and the anodic photocurrent might be produced by the lead oxide,which formed p-n junctions.The measurement of photo-potential was used to study the constant current polarization of lead electrodes in H2SO4 solution.