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以RuCl3·3H2O和LaCl3·7H2O为前驱物,通过热分解方法制备Ti基Ru-La氧化物涂层,用循环伏安法(CV)、热分析(DSC-TG)法、X射线衍射(XRD)仪及原子力显微镜(AFM)等测试手段对涂层电化学活性、结构和形貌进行表征.结果表明,加入La使钌基氧化物涂层晶粒细化,扩大了活性表面积,从而使电化学活性得到提高.另外,La 提高了RuCl3热分解温度,并抑制了RuO2和RuOx(x>2)结晶和长大,其混合氧化物主要以非晶态形式存在.当La 含量达到30%(摩尔分数)时,晶粒尺寸达到最小值,其电化学活性最好.

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