title: In situ growth of Au nanocrystals on graphene oxide sheets.
abstract: Au nanocrystals (AuNCs) with a size of 10-20 nm decorated on graphene oxide (GO) were fabricated successfully through a hydrothermal reduction and crystallization route without any extra reductants and capping agents. The hydrophobic areas of GO benefit the formation of nanocrystals (NCs) with {111} facets totally exposed; however, the hydrophilic areas are detrimental to the crystallization. The morphology of AuNCs could be tailored by the degree of oxidation on the GO surface. The shape-controllable and reducing properties of GO are in favor of "clean" synthesis of noble metal NCs decorated on graphene.
authors: College of Petrochemical Engineering, Changzhou University, Changzhou 213164, China. yzkongyong@126.com.
authors: Yong
authors: Y
authors: Qin
authors: Juan
authors: J
authors: Li
authors: Yong
authors: Y
authors: Kong
authors: Xiazhang
authors: X
authors: Li
authors: Yongxin
authors: Y
authors: Tao
authors: Shan
authors: S
authors: Li
authors: Yuan
authors: Y
authors: Wang
mesh_terms: D000327:Adsorption; D015374:Biosensing Techniques; D003460:Crystallization; D006046:Gold / Q000737:chemistry*; D006108:Graphite / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D053758:Nanoparticles / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods; D010087:Oxides / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry; D010316:Particle Size; D014961:X-Ray Diffraction
chemical_list: D010087:Oxides; D006046:Gold; D006108:Graphite; D010100:Oxygen