含Mn涂层钛阳极的制备及性能

采用热分解法制备了不同含锰涂层钛阳极,对比测试了不同含锰涂层钛阳极的性能。对所制备钛阳极涂层成分和形貌进行了X射线衍射(XRD)、扫描电子显微镜(SEM)检测分析。通过循环伏安曲线(CV)、极化曲线(LSV)和加速寿命实验(ALT)测试,探究了涂层钛阳极在硫酸溶液中的电化学行为。结果表明,不同元素组成的涂层钛阳极表面形貌具有明显的差异,Mn可以明显改善涂层的形貌结构和催化性能,提高涂层的耐腐蚀性。通过对比Ti/IrO₂-RuO₂-MnO₂涂层阳极综合性能最好、强化电解寿命可达114h,具有很好的吸氧催化活性和稳定性。

Preparation and properties of Mn coated titanium anode

Titanium anodes with different coatings were prepared by thermal decomposition method, and the performance of titanium anodes with different manganese coatings was compared and tested.The composition and morphology of the prepared titanium anode coating were analyzed by X-ray diffraction (XRD) and scanning electron microscope (SEM). The electrochemical behavior of coated titanium anode in sulfuric acid solution was investigated by cyclic voltammetry (CV), polarization curve (LSV) and accelerated life test (ALT). The results show that the surface morphology of the coated titanium anode with different elements has obvious differences. Mn can significantly improve the morphology, structure and catalytic performance of the coating, and improve the corrosion resistance of the coating. By comparison, Ti/IrO₂-RuO₂-MnO₂ coated anode has the best comprehensive performance, enhanced electrolytic life up to 114h, and it has good oxygen absorption catalytic activity and stability.