Abstract In this study, the effects of Ag+ (140 mg/L) in an electrolyte on the oxygen evolution and corrosion behaviors of Pb and Pb Ag (0.6 wt%) anodes in diaphragm electrolysis were investigated by utilizing a variety of tests and analyses, including galvanostatic polarization, mass increment, ion concentration, anodic polarization curve, phase analysis, and scanning electron microscopy of the oxide layer and substrate. The results show that an ion exchange membrane can effectively prevent Ag+ and Pb2+ from penetrating into the cathode chamber and depositing on the cathode. The addition of Ag+ in diaphragm electrolysis significantly lowers the overpotential of oxygen evolution reaction and improves the corrosion resistance of Pb and Pb Ag (0.6 wt%) anodes. This is mainly attributed to the formation of Ag2O2 on the surface of the anode, which provides good catalytic activity for the oxygen evolution reaction (Ag2O2 can form Ag2O2 hydrate in sulfuric acid solution, Ag2O2 hydrate loses electrons and H+ during electrification, and then Ag2O2 is formed again after electron rearrangement).

中文翻译：

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隔膜电解中Ag+对铅和铅银阳极析氧和腐蚀行为的影响

摘要 在这项研究中，电解液中的 Ag+ (140 mg/L) 对隔膜电解中 Pb 和 Pb Ag (0.6 wt%) 阳极的析氧和腐蚀行为的影响，通过各种测试和分析进行了研究，包括恒电流极化、质量增量、离子浓度、阳极极化曲线、相分析和氧化层和基板的扫描电子显微镜。结果表明，离子交换膜可以有效地防止Ag+和Pb2+渗入阴极室并沉积在阴极上。在隔膜电解中添加 Ag+ 显着降低了析氧反应的过电位，并提高了 Pb 和 Pb Ag (0.6 wt%) 阳极的耐腐蚀性。这主要是由于在阳极表面形成了 Ag2O2，