Solution-Based Evolution and Enhanced Methanol Oxidation Activity of Monodisperse Platinum-Copper Nanocubes

被引:359
作者
Xu, Dan [1 ]
Liu, Zhaoping [3 ]
Yang, Hongzhou [2 ]
Liu, Qingsheng [4 ]
Zhang, Jun [1 ]
Fang, Jiye [1 ]
Zou, Shouzhong [2 ]
Sun, Kai [5 ]
机构
[1] SUNY Binghamton, Dept Chem, Binghamton, NY 13902 USA
[2] Miami Univ, Dept Chem & Biochem, Oxford, OH 45056 USA
[3] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315211, Zhejiang, Peoples R China
[4] Texas A&M Univ, Dept Chem, College Stn, TX 77842 USA
[5] Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA
关键词
alloys; copper; methanol electrooxidation; nanostructures; platinum; SHAPE-CONTROLLED SYNTHESIS; TRANSMISSION-ELECTRON-MICROSCOPY; OXYGEN REDUCTION; CATALYTIC-ACTIVITY; ALLOY; NANOPARTICLES; NANOCRYSTALS; SURFACE; GROWTH; CO;
D O I
10.1002/anie.200900293
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Shape-controlled catalysis: High-quality Pt-Cu nanocubes with an average size of about 8 nm (see picture, scale bar=20 nm) were synthesized from a high-temperature organic solution system in the presence of various capping ligands. These cubic Pt-Cu nanocrystals terminated with {100} facets demonstrated a superior catalytic activity towards methanol oxidation compared to similar sized Pt-Cu and Pt nanospheres. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:4217 / 4221
页数:5
相关论文
共 55 条
[1]   Shape-controlled synthesis of colloidal platinum nanoparticles [J].
Ahmadi, TS ;
Wang, ZL ;
Green, TC ;
Henglein, A ;
ElSayed, MA .
SCIENCE, 1996, 272 (5270) :1924-1926
[2]  
[Anonymous], 2006, ANGEW CHEM, DOI DOI 10.1002/ANGE.200603068
[3]  
[Anonymous], 2006, ANGEW CHEM-GER EDIT, DOI DOI 10.1002/ANGE.200504386
[4]  
[Anonymous], 2006, ANGEW CHEM
[5]   The methanol oxidation reaction on platinum alloys with the first row transition metals - The case of Pt-Co and -Ni alloy electrocatalysts for DMFCs: A short review [J].
Antolini, E ;
Salgado, JRC ;
Gonzalez, ER .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2006, 63 (1-2) :137-149
[6]   ELECTRONIC-STRUCTURE OF A CU75PT25 DISORDERED ALLOY [J].
AROLA, E ;
BARNES, CJ ;
RAO, RS ;
BANSIL, A ;
PESSA, M .
SURFACE SCIENCE, 1991, 249 (1-3) :281-288
[7]   Growth of Pt/Cu(100): Formation of a surface alloy [J].
Belkhou, R ;
Thiele, J ;
Guillot, C .
SURFACE SCIENCE, 1997, 377 (1-3) :948-952
[8]   The impact of nanoscience on heterogeneous catalysis [J].
Bell, AT .
SCIENCE, 2003, 299 (5613) :1688-1691
[9]   Transmission-electron-microscopy study on fivefold twinned silver nanorods [J].
Chen, HY ;
Gao, Y ;
Zhang, HR ;
Liu, LB ;
Yu, HC ;
Tian, HF ;
Xie, SS ;
Li, JQ .
JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (32) :12038-12043
[10]   Single-crystal nanowires of platinum can be synthesized by controlling the reaction rate of a polyol process [J].
Chen, JY ;
Herricks, T ;
Geissler, M ;
Xia, YN .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (35) :10854-10855