The role of the catalysts with highly dispersed and isolated active sites in the selective oxidation of light hydrocarbons  

作　　者：WANG Hongxuan ZHAO Zhen 

机构地区：[1]State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China

出　　处：《Progress in Natural Science:Materials International》2005年第12期1066-1072,共7页自然科学进展·国际材料（英文版）

基　　金：Supported by National Natural Science Foundation of China (Grant No.20373043) the Scientific Research Key Foundation for the Returned Overseas Chinese Scholars of Ministry of Education

摘　　要：This review summarizes the role of catalysts with highly dispersed and isolated active sites (active sites: supported atoms f≤0.5 % ) in the selective oxidation of light hydrocarbons, such as methane, ethane and propane, into oxygenatesand the epoxidation of olefins. The plausible structures of the highly dispersed and isolated active species, as well as their effects on the catalytic performances are discussed. The special physico-chemical properties and the functional mechanism of the catalysts with highly dispersed and isolated active sites, as well as the preparation, characterization of the catalysts with highly dispersed and isolated active sites and their applications in other types of reactions of lower hydrocarbons are summarized.This review summarizes the role of catalysts with highly dispersed and isolated active sites （active sites： supported atoms f≤0. 5 % ） in the selective oxidation of light hydrocarbons, such as methane, ethane and propane, into oxygenates and the epoxidation of olefins. The plausible structures of the highly dispersed and isolated active species, as well as their effects on the catalytic performances are discussed. The special physico-chemical properties and the functional mechanism of the catalysts with highly dispersed and isolated active sites, as well as the preparation, characterization of the catalysts with highly dispersed and isolated active sites and their applications in other types of reactions of lower hydrocarbons are summarized.

关 键 词：selective oxidation light hydrocarbons highly dispersed isolated active sites OXYGENATES catalyst methane ETHANE propane. 

分 类 号：O621.254.1[理学—有机化学] O622.1[理学—化学]