CO oxidation on rutile-supported Au nanoparticles

被引：357

作者：

Remediakis, IN ^{[1
]}

Lopez, N

Norskov, JK

机构：

[1] Tech Univ Denmark, Dept Phys, Ctr Atom Scale Mat Phys, DK-2800 Lyngby, Denmark

[2] Univ Barcelona, Dept Quim Fis, E-08028 Barcelona, Spain

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2005年 / 44卷 / 12期

关键词：

density functional calculations; gold; heterogeneous catalysis; nanostructures; titanium oxide;

D O I：

10.1002/anie.200461699

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

What makes inert gold active? The answer lies in controlling the structure of Au particles at the nanoscale: Either many interface sites or many low-coordinate Au atoms need to be present in the particles. This principle is demonstrated by modeling the oxidation of CO on a rutile (TiO 2)-supported Au nanocluster, the transition state of which does not involve the titania support (see picture: Au yellow, Ti light gray, C dark gray, O red). (Figure Presented) © 2005 Wiley-VCH Verlag GmbH S. Co. KGaA.

引用

页码：1824 / 1826

页数：3

共 23 条

[1] The influence of the preparation methods on the catalytic activity of platinum and gold supported on TiO2 for CO oxidation [J].

Bamwenda, GR ;

Tsubota, S ;

Nakamura, T ;

Haruta, M .

CATALYSIS LETTERS, 1997, 44 (1-2) :83-87

[2] Nanocrystalline CeO2 increases the activity of an for CO oxidation by two orders of magnitude [J].

Carrettin, S ;

Concepción, P ;

Corma, A ;

Nieto, JML ;

Puntes, VF .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (19) :2538-2540

[3] CO oxidation on supported nano-Au catalysts synthesized from a [Au6(PPh3)6](BF4)2 complex [J].

Choudhary, TV ;

Sivadinarayana, C ;

Chusuei, CC ;

Datye, AK ;

Fackler, JP ;

Goodman, DW .

JOURNAL OF CATALYSIS, 2002, 207 (02) :247-255

[4] Active nonmetallic Au and Pt species on ceria-based water-gas shift catalysts [J].

Fu, Q ;

Saltsburg, H ;

Flytzani-Stephanopoulos, M .

SCIENCE, 2003, 301 (5635) :935-938

[5] Improved adsorption energetics within density-functional theory using revised Perdew-Burke-Ernzerhof functionals [J].

Hammer, B ;

Hansen, LB ;

Norskov, JK .

PHYSICAL REVIEW B, 1999, 59 (11) :7413-7421

[6] WHY GOLD IS THE NOBLEST OF ALL THE METALS [J].

HAMMER, B ;

NORSKOV, JK .

NATURE, 1995, 376 (6537) :238-240

[7] LOW-TEMPERATURE OXIDATION OF CO OVER GOLD SUPPORTED ON TIO2, ALPHA-FE2O3, AND CO3O4 [J].

HARUTA, M ;

TSUBOTA, S ;

KOBAYASHI, T ;

KAGEYAMA, H ;

GENET, MJ ;

DELMON, B .

JOURNAL OF CATALYSIS, 1993, 144 (01) :175-192

[8] GOLD CATALYSTS PREPARED BY COPRECIPITATION FOR LOW-TEMPERATURE OXIDATION OF HYDROGEN AND OF CARBON-MONOXIDE [J].

HARUTA, M ;

YAMADA, N ;

KOBAYASHI, T ;

IIJIMA, S .

JOURNAL OF CATALYSIS, 1989, 115 (02) :301-309

[9] Do quantum size effects control CO adsorption on gold nanoparticles? [J].

Lemire, C ;

Meyer, R ;

Shaikhutdinov, S ;

Freund, HJ .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (01) :118-121

[10]

LIU ZP, 2003, PHYS REV LETT, V91, P266

← 1 2 3 →