用热分解法制备了RuTiSnMn/Ti阳极,通过循环伏安法和交流阻抗法研究了该阳极在3.5%NaCl溶液、0.5mol/L NaOH溶液和混凝土模拟孔隙液中的电化学行为,利用扫描电镜(SEM)对阳极的微观形貌进行了观察,并在4mA/cm2的电流密度下进行了恒电流试验.结果表明:增加涂覆量,可以提高阳极的催化活性;在NaCl和NaOH溶液中,涂覆量加大后氧化膜电阻降低,氧化膜双电层电容变大,法拉第电荷传递电阻减小;涂液浓度和涂覆量对阳极形貌有显著影响;涂覆量增加加大了涂层活性组元的含量,同时延缓了基体的钝化,使阳极寿命明显延长;涂覆量为9.4g/m2时阳极性能满足标准要求.
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