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.
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.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
2010年第6期590-593,共4页
Acta Chimica Sinica
基金
国家自然科学基金(No.20873031)
上海市基础研究重点(No.08JC1402000)资助项目
