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用阳离子表面活性剂(CTAB)作为阳极氧化物涂层生长模板剂,用热分解法制备出30%RuO_2-70%TiO_2/Ti涂层电极。用计时电位、循环伏安方法分析CTAB用量对涂层电催化性能的影响。结果表明:CTAB在降低析氯电位,提高电极电催化活性上具有显著的效果。表面活性剂CTAB所起的作用主要可以归结为两个方面,一方面用表面活性剂为模板剂使制备的阳极涂层具有高比表面积和多孔性结构,增大涂层的真实表面积;另一方面,CTAB辅助所制备的电极涂层具有高密度的缺陷结构,使涂层的催化活性位密度增大。
The cationic surfactant (CTAB) was used as anodic oxide coating growth template, and the 30% RuO_2-70% TiO_2 / Ti coated electrode was prepared by thermal decomposition. The effect of CTAB dosage on electrocatalytic performance of coatings was analyzed by chronopotentiometry and cyclic voltammetry. The results showed that CTAB had a significant effect in reducing the chlorine evolution potential and improving the electrocatalytic activity of the electrode. The role of the surfactant CTAB can be mainly attributed to two aspects, on the one hand with the surfactant as a template to make the anode coating has a high specific surface area and porous structure, increasing the real surface area of the coating; the other In terms of CTAB, the prepared electrode coating has a high-density defect structure, which increases the density of the catalytically active sites of the coating.