Graphene oxide supported Au-Ag alloy nanoparticles with different shapes and their high catalytic activities

被引：44

作者：

Wu, Tao ^{[1
]}

Ma, Junkui ^{[1
]}

Wang, Xingrui ^{[1
]}

Liu, Yue ^{[1
]}

Xu, Han ^{[2
]}

Gao, Jianping ^{[1
]}

Wang, Wei ^{[2
]}

Liu, Yu ^{[1
]}

Yan, Jing ^{[1
]}

机构：

[1] Tianjin Univ, Sch Sci, Tianjin 300072, Peoples R China

[2] Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China

来源：

NANOTECHNOLOGY | 2013年 / 24卷 / 12期

基金：

美国国家科学基金会;

关键词：

GOLD NANOPARTICLES; BIMETALLIC NANOPARTICLES; SILVER NANOPARTICLES; REDUCTION; CHEMISTRY; PHASE; NANOCRYSTALS; BIOLOGY; SIZE; PD;

D O I：

10.1088/0957-4484/24/12/125301

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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.

引用

页数：10

共 50 条

[1] Synthesis and Spectroscopic Analysis of Au-Ag Alloy Nanoparticles with Different Composition of Au and Ag
Latif-ur-Rahman
Shah, Anwar-ul-Haq Ali
Shah, Afzal
Salman, Syed Muhammad
Jan, Abdul Khaliq
BIOINTERFACE RESEARCH IN APPLIED CHEMISTRY, 2022, 12 (01): : 377 - 390
[2] Fabrication of graphene oxide decorated with Au-Ag alloy nanoparticles and its superior catalytic performance for the reduction of 4-nitrophenol
Wu, Tao
Zhang, Lei
Gao, Jianping
Liu, Yu
Gao, Chunjuan
Yan, Jing
JOURNAL OF MATERIALS CHEMISTRY A, 2013, 1 (25) : 7384 - 7390
[3] Microwave-assisted synthesis of Au, Ag and Au-Ag nanoparticles and their catalytic activities for the reduction of nitrophenol
Albonetti, S.
Blosi, M.
Gatti, F.
Migliori, A.
Ortolani, L.
Morandi, V.
Baldi, G.
Barzanti, A.
Dondi, M.
SCIENTIFIC BASES FOR THE PREPARATION OF HETEROGENEOUS CATALYSTS: PROCEEDINGS OF THE 10TH INTERNATIONAL SYMPOSIUM, 2010, 175 : 621 - 624
[4] A simple and "green" method for the synthesis of Au, Ag, and Au-Ag alloy nanoparticles
Raveendran, P
Fu, J
Wallen, SL
GREEN CHEMISTRY, 2006, 8 (01) : 34 - 38
[5] Synthesis of Au, Ag and Au-Ag alloy nanoparticles in aqueous polymer solution
Pal, Angshuman
Shah, Sunil
Devi, Surekha
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2007, 302 (1-3) : 51 - 57
[6] Fungal biomolecules assisted biosynthesis of Au-Ag alloy nanoparticles and evaluation of their catalytic property
Tripathi, Ravi Mani
Gupta, Rohit Kumar
Bhadwal, Akhshay Singh
Singh, Priti
Shrivastav, Archana
Shrivastav, B. R.
IET NANOBIOTECHNOLOGY, 2015, 9 (04) : 178 - 183
[7] Extracellular biosynthesis of bimetallic Au-Ag alloy nanoparticles
Senapati, S
Ahmad, A
Khan, MI
Sastry, M
Kumar, R
SMALL, 2005, 1 (05) : 517 - 520
[8] Synthesis of Au-Ag alloy nanoparticles supported on silica gel via galvanic replacement reaction
Xiaoyan Liu
Aiqin Wang
Lin Li
Tao Zhang
Chung-Yuan Mou
Jyh-Fu Lee
Progress in Natural Science:Materials International, 2013, 23 (03) : 317 - 325
[9] Synthesis of Au-Ag alloy nanoparticles supported on silica gel via galvanic replacement reaction
Liu, Xiaoyan
Wang, Aiqin
Li, Lin
Zhang, Tao
Mou, Chung-Yuan
Lee, Jyh-Fu
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL, 2013, 23 (03) : 317 - 325
[10] One-Pot Synthesis of Silica Supported Au-Ag Alloy Nanoparticles for Cyclohexane Oxidation
Wu, Pingping
Bai, Peng
Xia, Wei
Yang, Xiujie
Li, Jun
Yan, Zifeng
NANOSCIENCE AND NANOTECHNOLOGY LETTERS, 2016, 8 (11) : 972 - 977

← 1 2 3 4 5 →