Activation of Pt/TiO2 Catalysts by Structural Transformation of Pt-Sites
Author(s) -
Xiaoyan Shi,
Changbin Zhang,
Hong He,
Masashi Shou,
Kenichi Tanaka,
Shinichi Sugihara,
Yukio Ando
Publication year - 2006
Publication title -
catalysis letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.587
H-Index - 121
eISSN - 1572-879X
pISSN - 1011-372X
DOI - 10.1007/s10562-005-9723-0
Subject(s) - chemistry , catalysis , organometallic chemistry , oxide , transition metal , heterogeneous catalysis , platinum , transformation (genetics) , inorganic chemistry , organic chemistry , biochemistry , gene
Superior activation of on 1 wt% Pt/TiO2 catalysts for the oxidation of CO was attained by loading a large amount of Fe-oxide (100 wt%) and TiO2. In situ IR spectra of CO proved that the structural transformation is brought about on the Pt-sites by loading of Fe-oxide, where predominant Pt-sites giving linear CO change to highly reactive bridge CO Pt-sites. In contrast, no transformation of the linear CO sites to the bridge CO sites takes place by loading of TiO2 but the environment of Pt-sites for linear CO is changed. © 2006 Springer Science+Business Media, Inc.
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