负载型Au/Al_2O_3系列催化剂的研究进展

Advances in the Research of Au/Al_2O_3 Catalysts

负载型金催化剂作为一种新型催化剂,它优异的催化氧化性能引起越来越多化学工作者的关注.Al2O3是催化剂制备中大量使用的典型氧化物载体.综述了近年来以Al2O3为载体的系列Au/Al2O3催化剂的制备方法、催化性能及其活性中心结构的研究状况和发展趋势,讨论的主要反应包括CO低温催化氧化为CO2、汽车尾气净化、含卤有机化合物的消除和甲烷催化燃烧.

As a kind of new catalyst, supported gold catalyst has excellent catalytic performance and has drawn much attention. Al2O3 is a type of metal oxide support in the preparation of catalysts. In this paper, progress on preparation methods, catalytic performance and active sites for the series of supported Au/Al2O3 catalysts is reviewed. A series of important reactions are discussed, such as low-temperature catalytic oxidation of CO, purification of exhaust from motor vehicles, elimination of organic halogen-containing compounds and catalytic combustion of CH4.