The support effect on the size and catalytic activity of thiolated Au25 nanoclusters as precatalysts

• 作 者: Jun Fang Jianping Xie Ning Yan
• 机 构: DepartmentofChemicalandBiomolecularEngineering,NationalUniversityofSingapore,4EngineeringDrive4,1175
• 出 处: 第十五届全国青年催化学术会议
• 发表日期: 2015年7期
• 关键词: Au25 nanoclusters heterogeneous catalysis size effect support effect

Thiolate-protected Au nanoclusters(or thiolated Au NCs) are very promising catalysts due to their well-defined cluster size(atomic precision) and structure(atomically resolved).So thiolated Au NCs provide an ideal platform to reveal certain fundamental issues related to Au-based catalytic reactions.In this study,6-mercaptohexanoic(MHA) protected Au25(MHA)18 nanoclusters(or thiolated Au NCs) deposited on various inorganic supports,including hydroxyapatite(HAP),TiO2(Degussa P25),activated carbon(AC),pyrolyzed graphene oxide(PGO),and fumed SiO2 were prepared via a conventional impregnation method.