采用热分解法制备了不同Ru/Ta配比的Ti/RuO2-Ta2O5二元混合氧化物电极材料.采用X射线衍射(XRD)、循环伏安(CV)及恒流充放电测试分析了Ti/RuO2-Ta2O5电极的组织结构、伏安特性和恒流充放电性能.结果表明,随氧化钽含量的升高,RuO2-Ta2O5涂层的结晶程度逐渐下降,当Ta2O5含量≥70 mol%时,RuO2-Ta2O5混合氧化物完全以非晶态结构存在.Ti/RuO2-Ta2O5电极的比电容随Ta2O5含量的增加呈现先增后减的变化趋势.在Ta2O5含量为70 mol%时,电极具有较好的超电容性能,比电容达到621.2 F·g-1.
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