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On the Role of Oxygen in Stabilizing Low‐Coordinated Au Atoms
Author(s) -
Biener Jürgen,
Biener Monika M.,
Nowitzki Tobias,
Hamza Alex V.,
Friend Cynthia M.,
Zielasek Volkmar,
Bäumer Marcus
Publication year - 2006
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200600326
Subject(s) - oxygen , oxygen atom , adsorption , catalysis , argon , chemistry , ion , photochemistry , atomic oxygen , crystallography , inorganic chemistry , chemical physics , molecule , organic chemistry
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.