以热分解工艺制备铽氧化物电极,采用XPS和电化学循环伏安法分析铽氧化物的表面特征和在700 ℃高温NaCl-KCl熔体中析氯过程的行为. XPS分析表明, 热分解产物表面成分为非化学计量、有结构缺陷的混合价态铽氧化物; 电极表面的循环极化反映出Cl-的特性吸附和电解质中电极表面结构变化过程;循环伏安分析揭示了表面氧化物的氧化还原行为及在电催化过程中的作用. 通过测定循环伏安电量研究电催化剂制备时温度的影响, 并进行电化学活性表面的相对测量和活性层表面微观结构变化的实时监控.
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