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Dissociation of SO 2 on Au/TiC(001): Effects of Au–C Interactions and Charge Polarization
Author(s) -
Rodriguez José A.,
Liu Ping,
Viñes Francesc,
Illas Francesc,
Takahashi Yoshiro,
Nakamura Kenichi
Publication year - 2008
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.200801027
Subject(s) - dissociation (chemistry) , adsorption , photoemission spectroscopy , materials science , chemistry , spectroscopy , x ray photoelectron spectroscopy , crystallography , chemical physics , chemical engineering , physics , quantum mechanics , engineering
Activating gold : High‐resolution photoemission spectroscopy and DFT calculations were used to study the interaction of SO 2 with Au/TiC(001) surfaces. Both revealed molecular adsorption of SO 2 on TiC(001) but complete dissociation of the SO bonds on Au/TiC(001) (see picture). Au/TiC(001) cleaves SO bonds more efficiently than Au/TiO 2 (110) or Au/MgO(100) and decomposes SO 2 at temperatures as low as 150 K.