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Graphene oxide supported Au-Ag alloy nanoparticles with different shapes and their high catalytic activities.
MedLine Citation:
PMID:  23459126     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
A simple method was developed to fabricate Au-Ag nanoparticle/graphene oxide nanocomposites (Au-Ag/GO) by using simultaneous redox reactions between AgNO3, HAuCl4 and GO. The Au-Ag/GO was characterized by x-ray photoelectron spectroscopy, transmission electron microscopy and energy dispersive x-ray spectroscopy. The GO nanosheets acted as the reducing agent and the support for the Au-Ag alloy nanoparticles. In addition, Au-Ag alloy nanoparticles with different shapes including core-shell-like, dendrimer-like and flower-like were obtained by simply modifying the concentration of the reactants and the reaction temperature. With no reducing or stabilizing agents added, the Au-Ag/GO nanocomposites show superior catalytic performance for the reduction of 4-nitrophenol and for the aerobic homocoupling of phenylboronic acid.
Authors:
Tao Wu; Junkui Ma; Xingrui Wang; Yue Liu; Han Xu; Jianping Gao; Wei Wang; Yu Liu; Jing Yan
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-3-04
Journal Detail:
Title:  Nanotechnology     Volume:  24     ISSN:  1361-6528     ISO Abbreviation:  Nanotechnology     Publication Date:  2013 Mar 
Date Detail:
Created Date:  2013-3-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101241272     Medline TA:  Nanotechnology     Country:  -    
Other Details:
Languages:  ENG     Pagination:  125301     Citation Subset:  -    
Affiliation:
School of Science, Tianjin University, Tianjin, 300072, People's Republic of China.
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