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采用热分解法制备了一种以离子镀TiN膜为基体的IrO2+Ta2O5涂层电极,通过极化曲线、循环伏安、电化学阻抗谱等电化学方法并结合扫描电镜、X射线能谱和X射线衍射研究了涂层的析氧电催化活性,并对460℃制备的涂层进行强化寿命实验.结果表明:涂层呈多孔、多裂纹的显微结构和多层电化学结构;制备温度对涂层表面形貌和电催化活性影响很大:该涂层阳极在保持了高电催化活性的同时,其使用寿命高于传统Ti基阳极,说明TiN作为此类催化电极的载体是可行的.

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