电沉积PbO_2电极的析氧行为

Oxygen Evolution Behavior of PbO_2 Electrodes Prepared with Electrodeposition Method

本文探讨了PbO_2电极的电沉积制备条件以及电极的析氧行为和稳定性。实验结果表明:FcCL_3R的存在可以显著提高电沉积PbO_2电极的析氧性能,提高电极在强氧化性条件下的稳定性。从电沉积层的组成、Fe_2O_3、Pb_2和TiO_2的晶体结构以及不同条件下PbO_2电极的析氧催化行为角度对上述结果进行了理论探讨。

The electrodeposition conditions for the preparation of PbO2 electrode the oxygen evolution behavior and the stability of the prepared PbO2 electrodes were studied. It was shown that the presence of ferric chloride (FeCl3) would significantly enhance both the catalytic effect on oxygen evolution reaction and the stability under strong oxidizing conditions of PbO2 electrodes. The results were rationalized in terms of the composition of the resultant electrodeposites the crystal structure of Fe2O3, PbO2 and TiO2 and the electrochemical catalytic behavior of PbO2 electrodes under various conditions.