纳米Ce_(1-x)Zr_xO_2催化剂上乙醇催化氧化发光研究  

Catalytic Oxidation Cataluminescence of Ethanol over Catalysts Ce_(1-x)Zr_(x)O_(2)

作　　者：叶青[1] 高岐[1] 张新荣[1] 徐柏庆[1] 

机构地区：[1]清华大学化学系有机光电子与分子工程教育部重点实验室,北京100084

出　　处：《高等学校化学学报》2006年第4期726-730,共5页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:20125310);国家"九七三"计划项目(批准号:2003CB615804)资助

摘　　要：研究了纳米Ce1-xZrxO2上乙醇催化氧化发光特性,重点考察了反应温度和催化剂组成[n(Ce)/n(Zr)]对发光强度的影响.在相近的反应条件下研究了纳米Ce1-xZrxO2上乙醇催化氧化反应的活性、选择性和可能的催化发光机理.结果表明,催化发光强度与催化反应中生成CH3CHO的产率有很好的顺变关系.Cataluminescent characteristics of Ce1-xZrxO2 （0≤x≤1） nanoparticles in the catalytic oxidation of ethanol was studied with focus on the effects of the chemical composition, phase structure and the reaction temperature. To understand the relationship between the cataluminescence and catalytic performance of the Ce1-xZrxO2 nanoparticles, catalytic ethanol oxidation was also studied in a conventional catalytic reactor under conditions similar to those for the cataluminescence study. It is shown that intensity of cataluminescence over Ce1-xZrxO2 nanoparticles is associated with the rate of acetaldehyde formation.

关 键 词：纳米Ce1-xZrxO2 乙醇催化氧化 催化发光 氧化还原性 

分 类 号：O643[理学—物理化学]