Synthesis of highly faceted multiply twinned gold nanocrystals stabilized by polyoxometalates

被引:33
作者
Yuan, Junhua
Chen, Yuanxian
Han, Dongxue
Zhang, Yuanjian
Shen, Yanfei
Wang, Zhijuan
Niu, Li [1 ]
机构
[1] Chinese Acad Sci, Grad Sch, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Peoples R China
[2] Xianning Coll, Dept Pharmaceut, Xianning 437100, Peoples R China
[3] Xianning Coll, Dept Pharmaceut, Xianning 437100, Peoples R China
[4] Jilin Univ, Dept Mat Sci, Changchun 130021, Peoples R China
关键词
D O I
10.1088/0957-4484/17/18/027
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
A novel and facile chemical synthesis of highly faceted multiply twinned gold nanocrystals is reported. The gold nanocrystals are hexagonal in transmission electron microscopy and icosahedral in scanning electron microscopy. Phosphotungstic acid (PTA), which was previously reduced, serves as a reductant and stabilizer for the synthesis of gold nanocrystals. The PTA-gold nanocomposites are quite stable in aqueous solutions, and electrochemically active towards the hydrogen evolution reaction.
引用
收藏
页码:4689 / 4694
页数:6
相关论文
共 41 条
[1]   Polyoxoanion- and tetrabutylammonium-stabilized Rh(0)n nanoclusters:: Unprecedented nanocluster catalytic lifetime in solution [J].
Aiken, JD ;
Finke, RG .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (38) :8803-8810
[2]   CRYSTALLOGRAPHIC STRUCTURE OF SMALL GOLD PARTICLES STUDIED BY HIGH-RESOLUTION ELECTRON-MICROSCOPY [J].
BUFFAT, PA ;
FLUELI, M ;
SPYCHER, R ;
STADELMANN, P ;
BOREL, JP .
FARADAY DISCUSSIONS, 1991, 92 :173-187
[3]   Gold nanocages: Bioconjugation and their potential use as optical imaging contrast agents [J].
Chen, J ;
Saeki, F ;
Wiley, BJ ;
Cang, H ;
Cobb, MJ ;
Li, ZY ;
Au, L ;
Zhang, H ;
Kimmey, MB ;
Li, XD ;
Xia, YN .
NANO LETTERS, 2005, 5 (03) :473-477
[4]   Monopod, bipod, tripod, and tetrapod gold nanocrystals [J].
Chen, SH ;
Wang, ZL ;
Ballato, J ;
Foulger, SH ;
Carroll, DL .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (52) :16186-16187
[5]   Shape controlled growth of gold nanoparticles by a solution synthesis [J].
Chen, Y ;
Gu, X ;
Nie, CG ;
Jiang, ZY ;
Xie, ZX ;
Lin, CJ .
CHEMICAL COMMUNICATIONS, 2005, (33) :4181-4183
[6]   Vital role of moisture in the catalytic activity of supported gold nanoparticles [J].
Daté, M ;
Okumura, M ;
Tsubota, S ;
Haruta, M .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (16) :2129-2132
[7]   TEMPERATURE-DEPENDENCE OF PROTON ELECTROREDUCTION KINETICS AT GOLD(111) AND (210) SURFACES AND ANNEALING OF SURFACE-DEFECTS [J].
HAMELIN, A ;
STOICOVICIU, L ;
CHANG, SC ;
WEAVER, MJ .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1991, 307 (1-2) :183-194
[8]   Thermally-induced formation of atomic Au clusters and conversion into nanocubes [J].
Jin, RC ;
Egusa, S ;
Scherer, NF .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (32) :9900-9901
[9]   Integrated nanoparticle-biomolecule hybrid systems: Synthesis, properties, and applications [J].
Katz, E ;
Willner, I .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (45) :6042-6108
[10]   Platonic gold nanocrystals [J].
Kim, F ;
Connor, S ;
Song, H ;
Kuykendall, T ;
Yang, PD .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (28) :3673-3677