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IrO₂-MnO₂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IrO₂纳米颗粒更为密集且尺寸更大；H₂SO₄刻蚀处理的Ti基IrO₂-MnO₂阳极电催化活性最佳，HF次之，C₂H₂O₄再次之，HCl最差.

The IrO₂-MnO₂ anodic nano-coatings were prepared by the traditional thermal decomposition method on the different surfaces of Ti substrates pretreated by different etchants (HCl, H₂SO₄, C₂H₂O₄ and HF). Surface morphologies and electrochemical performance of the Ti based IrO₂-MnO₂ anodic coatings were investigated by field emission scanning electron microscopy (FESEM), cyclic voltammetry (CV) and polarization techniques. Analysis showed that the denser IrO₂ nano-particles with longer dimensions were obtained at the IrO₂-MnO₂ anodic coating surfaces on the Ti substrates etched by HF and H₂SO₄ as compared with those on the Ti substrates etched by HCl and C₂H₂O₄. The decreasing order of electro-catalytic activities for the IrO₂-MnO₂ anodic nano-coatings on the Ti substrates etched by different etchants is H₂SO₄ > HF > C₂H₂O₄ > HCl.