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采用传统热分解法制得了不同刻蚀剂(HCl、H2SO4、C2H2O4和HF)处理的Ti基Ir O2-Mn O2纳米涂层阳极,使用场发射扫描电子显微镜(FESEM)、循环伏安(CV)及极化技术等观察和研究各纳米涂层阳极表面形貌及其电化学性能.结果表明,与HCl和C2H2O4刻蚀剂相比,HF和H2SO4刻蚀的基底涂层表面Ir O2纳米颗粒更为密集且尺寸更大;H2SO4刻蚀处理的Ti基Ir O2-Mn O2阳极电催化活性最佳,HF次之,C2H2O4再次之,HCl最差.
The Ti-based Ir O2-MnO2 nano-coated anodes treated with different etchants (HCl, H2SO4, C2H2O4 and HF) were prepared by the traditional thermal decomposition method. The emission spectra were characterized by field emission scanning electron microscopy (FESEM), cyclic voltammetry Polarization technique and so on were used to observe and study the surface morphology and electrochemical performance of each anode coated with nano-coating.The results show that the surface of IrO2 nano-particles coated with HF and H2SO4 is better than HCl and C2H2O4 etchants Dense and larger in size. The Ti-based Ir O2-Mn O2 anode treated with H2SO4 had the best electrocatalytic activity with HF followed by C2H2O4 and HCl the worst.