Fabrication of Au-Ag alloy nanoprisms with enhanced catalytic activity

被引:27
作者
Kim, Minjung
Lee, Kang Yeol
Jeong, Gyoung Hwa
Jang, Joonkyung
Han, Sang Woo [1 ]
机构
[1] Gyeongsang Natl Univ, Dept Chem, Res Inst Nat Sci & Environm Biotechnol, Natl Core Res Ctr, Jinju 660701, South Korea
[2] Pusan Natl Univ, Dept Nanomat Engn, Miryang 627706, South Korea
关键词
D O I
10.1246/cl.2007.1350
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Au-Ag alloy nanoparticles with prismatic structure have been prepared in aqueous solution by photoinduced conversion of spherical Au-Ag alloy nanoparticles. All the particles have compositions close to those expected from the starting ratio of metal compounds. These nanoprisms showed pronounced catalytic activity in the reduction of 4-nitrophenol by NaBH4.
引用
收藏
页码:1350 / 1351
页数:2
相关论文
共 14 条
[1]   Preparation of gold-dendrimer nanocomposites by laser irradiation and their catalytic reduction of 4-nitrophenol [J].
Hayakawa, K ;
Yoshimura, T ;
Esumi, K .
LANGMUIR, 2003, 19 (13) :5517-5521
[2]   Fabrication of nanoporous gold nanowires [J].
Ji, CX ;
Searson, PC .
APPLIED PHYSICS LETTERS, 2002, 81 (23) :4437-4439
[3]   Photoinduced conversion of silver nanospheres to nanoprisms [J].
Jin, RC ;
Cao, YW ;
Mirkin, CA ;
Kelly, KL ;
Schatz, GC ;
Zheng, JG .
SCIENCE, 2001, 294 (5548) :1901-1903
[4]   Preparation and characterization of palladium shells with gold and silica cores [J].
Kim, Jun-Hyun ;
Chung, Hae-Won ;
Lee, T. Randall .
CHEMISTRY OF MATERIALS, 2006, 18 (17) :4115-4120
[5]   Formation of gold-silver nanowires in thin surfactant solution films [J].
Krichevski, O ;
Tirosh, E ;
Markovich, G .
LANGMUIR, 2006, 22 (03) :867-870
[6]   Alloy formation of gold-silver nanoparticles and the dependence of the plasmon absorption on their composition [J].
Link, S ;
Wang, ZL ;
El-Sayed, MA .
JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (18) :3529-3533
[7]   Synergistic effect in an Au-Ag alloy nanocatalyst: CO oxidation [J].
Liu, JH ;
Wang, AQ ;
Chi, YS ;
Lin, HP ;
Mou, CY .
JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (01) :40-43
[8]   Self-assembly of mesoscopic metal-polymer amphiphiles [J].
Park, S ;
Lim, JH ;
Chung, SW ;
Mirkin, CA .
SCIENCE, 2004, 303 (5656) :348-351
[9]   Catalytic reduction of aromatic nitro compounds by coinage metal nanoparticles [J].
Pradhan, N ;
Pal, A ;
Pal, T .
LANGMUIR, 2001, 17 (05) :1800-1802
[10]   SIZE-SELECTIVE SYNTHESIS OF NANOSTRUCTURED TRANSITION-METAL CLUSTERS [J].
REETZ, MT ;
HELBIG, W .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1994, 116 (16) :7401-7402