Oxide-supported Aun（SR）m nanoclusters for CO oxidation

作     者：Weili Li 葛庆杰 Qingjie Ge 

作者机构：Dalian National Laboratory for Clean Energy Dalian Institute of Chemical Physics Chinese Academy of Sciences 

出 版 物：《催化学报》 (催化学报)

年 卷 期：2015年第36卷第2期

页      面：135-138页

核心收录：

学科分类：081705[工学-工业催化] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0817[工学-化学工程与技术] 080501[工学-材料物理与化学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

主　　题：金纳米粒子 CO氧化 纳米团簇 负载 氧化物 金属纳米粒子 SR 多相催化 

摘      要：Supported Au nanoparticles have been extensively investigated in heterogeneous catalysis since the seminal work of Haruta s research group, in part because of their high activity in some reactions, especially CO oxidation. Although many studies have been performed, two problems still remain: aggregation of Au nanoparticles and their catalytic reaction mechanism. Many strategies have been developed to increase Au nanoparticle stability, such as modification of metal nanoparticle composition, metal-support interfaces, and support nanostructures. However, Au particles prepared by the deposition-precipitation method are usually larger than 2 nm. Au nanoparticles smaller than 2 nm easily aggregate, and how to stabilize them is an interesting topic. In addition, many studies on the reaction mechanism catalyzed by supported Au nanoparticles have been performed, but the conclusions are not in agreement. This is mainly because of the heterogeneous distribution of the active metal in the catalysts, which are usually prepared by the traditional deposition-precipitation method.