The role of the catalysts with highly dispersed and isolated active sites in the selective oxidation of light hydrocarbo
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.
作 者： WANG Hongxuan ZHAO Zhen 作者单位： State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China 刊 名： 自然科学进展（英文版） SCI 英文刊名： PROGRESS IN NATURAL SCIENCE 年，卷(期)： 2005 15(12) 分类号： O6 关键词： selective oxidation light hydrocarbons highly dispersed isolated active sites oxygenates catalyst methane ethane propane