中文摘要：

在旋涂有球状纳米TiO2薄膜的导电玻璃（ITO）基底上采用循环伏安法（CV）电沉积RuO2作为电催化还原CO2的阴极.采用场发射扫描电子显微镜（FE-SEM）表征了RuO2/TiO2纳米薄膜的形貌,并应用近稳态电位扫描法和计时电流法（i～t）研究了薄膜的电催化CO2性能.结果表明所构建的RuO2/TiO2薄膜中纳米粒子大小均匀、排列致密,且较传统热分解法所得催化剂有更好的电催化性能.

英文摘要：

RuO2 electrodeposited on spherical-TiO2 nanoparticles-spin-coated ITO substrate by using cyclic voltammetry （CV） was used as the cathode for electrocatalytic reduction of CO2. The surface morphology of the as-prepared film was characterized by field emission scanning electron microscopy （FE-SEM） and its electrocatalytic performance was assessed by quasi-steady-state potentiodynamics and chronoamperometry （i～t）. The results show that the as-prepared RuO2/TiO2 nanofilm consists of uniform and compact nanoparticles, exhibiting superior electrocatalytic activity and stability for electrochemical reduction of CO2 as compared to that prepared by traditional thermal decomposition.