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采用电沉积法制备了钛基PbO2电极和Co、Fe、La、Ce、Bi掺杂的钛基PbO2电极。利用扫描电镜、X射线荧光光谱仪、X射线衍射仪以及电化学工作站等,对比研究了不同金属掺杂PbO2电极的表面形貌、结构、电催化氧化性能和使用寿命。结果表明,Bi、Fe和Ce更容易掺杂到PbO2膜层中。Ti/PbO2–Bi和Ti/PbO2–Ce电极具有比其他电极更小的晶粒尺寸、更高的电催化氧化活性和更长的使用寿命,即Bi和Ce的掺杂能够提高Ti/PbO2电极的电催化氧化性能和使用寿命。
Titanium-based PbO2 electrodes and Co, Fe, La, Ce, Bi-doped titanium-based PbO2 electrodes were prepared by electrodeposition. The surface morphology, structure, electrocatalytic oxidation performance and service life of PbO2-doped electrodes with different metals were compared using scanning electron microscopy, X-ray fluorescence spectrometer, X-ray diffraction and electrochemical workstation. The results show that Bi, Fe and Ce are more easily doped into the PbO2 film. Ti / PbO2-Bi and Ti / PbO2-Ce electrodes have smaller grain size, higher electrocatalytic oxidation activity and longer service life than other electrodes, that is, the doping of Bi and Ce can improve the Ti / PbO2 electrode The electrocatalytic oxidation performance and service life.