Imaging Isolated Gold Atom Catalytic Sites in Zeolite NaY

被引:179
作者
Lu, Jing [1 ]
Aydin, Ceren [1 ]
Browning, Nigel D. [1 ]
Gates, Bruce C. [1 ]
机构
[1] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA
关键词
electron microscopy; gold; interfaces; zeolites; TRANSMISSION ELECTRON-MICROSCOPY; LOW-TEMPERATURE OXIDATION; SUPPORTED GOLD; CO OXIDATION; CHEMOSELECTIVE HYDROGENATION; CARBON-MONOXIDE; COMPLEXES; NANOPARTICLES; RESOLUTION; HYDROAMINATION;
D O I
10.1002/anie.201107391
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
As good as atomic gold: Aberration-corrected scanning transmission electron microscopy images of zeolite NaY-supported mononuclear gold complexes, obtained with atomic resolution of the gold atoms, showed the locations of the gold complexes in the zeolite framework (see picture) and identified them as the catalytically active species for CO oxidation at 298K and 1bar. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:5842 / 5846
页数:5
相关论文
共 68 条
[1]   Catalyst parameters determining activity and selectivity of supported gold nanoparticles for the aerobic oxidation of alcohols:: The molecular reaction mechanism [J].
Abad, Alberto ;
Corma, Avelino ;
Garcia, Hermenegildo .
CHEMISTRY-A EUROPEAN JOURNAL, 2008, 14 (01) :212-222
[2]  
[Anonymous], 2004, ANGEW CHEM
[3]  
[Anonymous], 2007, ANGEW CHEM-GER EDIT
[4]  
Bailie J.J., 2001, CATAL COMMUN, V2, P291
[5]   Promotion by sulfur of gold catalysts for crotyl alcohol formation from crotonaldehyde hydrogenation [J].
Bailie, JE ;
Hutchings, GJ .
CHEMICAL COMMUNICATIONS, 1999, (21) :2151-2152
[6]   Synthesis of supported transition metal oxide catalysts by the designed deposition of acetylacetonate complexes [J].
Baltes, M ;
Collart, O ;
Van der Voort, P ;
Vansant, EF .
LANGMUIR, 1999, 15 (18) :5841-5845
[7]  
Bond G.C., 2007, Catalysis by Gold
[8]   Oxygen activation on gold nanoparticles: separating the influence of particle size, particle shape and support interaction [J].
Boronat, Mercedes ;
Corma, Avelino .
DALTON TRANSACTIONS, 2010, 39 (36) :8538-8546
[9]   High-resolution low-dose scanning transmission electron microscopy [J].
Buban, James P. ;
Ramasse, Quentin ;
Gipson, Bryant ;
Browning, Nigel D. ;
Stahlberg, Henning .
JOURNAL OF ELECTRON MICROSCOPY, 2010, 59 (02) :103-112
[10]   STABILITY OF ZEOLITES UNDER ELECTRON-IRRADIATION AND IMAGING OF HEAVY CATIONS IN SILICATES [J].
BURSILL, LA ;
THOMAS, JM ;
RAO, KJ .
NATURE, 1981, 289 (5794) :157-158