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Intrinsic Catalytic Structure of Gold Nanoparticles Supported on TiO 2
Author(s) -
Kuwauchi Yasufumi,
Yoshida Hideto,
Akita Tomoki,
Haruta Masatake,
Takeda Seiji
Publication year - 2012
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.201201283
Subject(s) - catalysis , transmission electron microscopy , nanoparticle , colloidal gold , bounded function , materials science , nanotechnology , crystallography , chemical engineering , computer science , chemistry , organic chemistry , mathematics , engineering , mathematical analysis
Despite the fragility of TiO 2 under electron irradiation, the intrinsic structure of Au/TiO 2 catalysts can be observed by environmental transmission electron microscopy. Under reaction conditions (CO/air 100 Pa), the major {111} and {100} facets of the gold nanoparticles are exposed and the particles display a polygonal interface with the TiO 2 support bounded by sharp edges parallel to the 〈110〉 directions.