Catalytic combustion of ethyl acetate over CeMnO_x and CeMnZrO_x compounds synthesized by coprecipitation method  

作　　者：Xiaoshuang Li Jianli Wang Chuanwen Liao Hongyan Cao Yaoqiang Chen Maochu Gong 

机构地区：[1]Key Laboratory of Green Chemistry ＆ Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, Sichuan, China

出　　处：《Journal of Natural Gas Chemistry》2011年第6期623-628,共6页天然气化学杂志（英文版）

基　　金：supported by the National Natural Science Foundation of China (No. 20773090);the National High Technology Research and Development Program of China (863 Program,No. 2006AA06Z347);the Youth Fund of Sichuan University (No. 2008119)

摘　　要：Ce0.6Mn0.4O2 catalysts with different sources of manganese and Ce0.6-xZrxMn0.4O2 mixed oxide catalysts were prepared by coprecipitation method and were characterized by N2 adsorption-desorption,TPR,XRD,and XPS techniques.The activities of the prepared catalysts for ethyl acetate combustion,and the effects of calcination temperature and space velocity on catalytic activity were investigated.The results showed that partial replacement of Mn（NO3）2 with KMnO4 as sources of manganese could improve activities of catalysts.Ce0.45Zr0.15Mn0.4O2 catalyst exhibited the best catalytic activity and high thermal stability,e.g.,T90 could be still below 210℃ even if space velocity was up to 20000h-1.Ce0.6Mn0.4O2 catalysts with different sources of manganese and Ce0.6-xZrxMn0.4O2 mixed oxide catalysts were prepared by coprecipitation method and were characterized by N2 adsorption-desorption,TPR,XRD,and XPS techniques.The activities of the prepared catalysts for ethyl acetate combustion,and the effects of calcination temperature and space velocity on catalytic activity were investigated.The results showed that partial replacement of Mn（NO3）2 with KMnO4 as sources of manganese could improve activities of catalysts.Ce0.45Zr0.15Mn0.4O2 catalyst exhibited the best catalytic activity and high thermal stability,e.g.,T90 could be still below 210℃ even if space velocity was up to 20000h-1.

关 键 词：ethyl acetate catalytic combustion volatile organic compound CeMnZrOx catalysts 

分 类 号：O643.36[理学—物理化学] X701[理学—化学]