On the role of oxygen in stabilizing low-coordinated au atoms

被引：39

作者：

Biener, Jurgen

Biener, Monika M.

Nowitzki, Tobias

Hamza, Alex V.

Friend, Cynthia M.

Zielasek, Volkmar

Baeumer, Marcus

机构：

[1] Univ Bremen, Inst Angew & Phys Chem, D-28359 Bremen, Germany

[2] Lawrence Livermore Natl Lab, Nanoscale Synth & Characterizat Lab, Livermore, CA 94550 USA

[3] Harvard Univ, Dept Chem, Cambridge, MA 02138 USA

来源：

CHEMPHYSCHEM | 2006年 / 7卷 / 09期

关键词：

catalysis; gold; nanoparticles; scanning probe; microscopy; surface chemistry;

D O I：

10.1002/cphc.200600326

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Low-coordinated gold atoms play a decisive role in the catalytic cycle of low-temperature CO oxidation or the selective oxidation of olefins. A comparative study of argon and oxygen ion-bombarded Au(111) surfaces (see microstructure images) reveals a threefold role of adsorbed oxygen: structure formation, stabilization of low-coordinated gold atoms, and transfer during oxidation reactions. (Figure Presented). © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：1906 / 1908

页数：3