Premium
Mechanism and Active Sites of the Oxidation of CO over Au/TiO 2
Author(s) -
Fujitani Tadahiro,
Nakamura Isao
Publication year - 2011
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201104694
Subject(s) - mechanism (biology) , reaction mechanism , chemistry , computer science , chemical engineering , catalysis , organic chemistry , philosophy , engineering , epistemology
At low reaction temperatures (<320 K), moisture plays an essential role in promoting the oxidation of CO over Au/TiO 2 (110) surfaces, whereas at high temperatures (>320 K), such promotional effect is not observed, suggesting that the mechanism and active sites of the reaction change with the reaction temperature (see picture; r CO 2=rate of CO 2 formation and p H 2 O =pressure of H 2 O).