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Sulfur Oxidation on Pt(355): It Is the Steps!
Author(s) -
Streber Regine,
Papp Christian,
Lorenz Michael P. A.,
Bayer Andreas,
Denecke Reinhard,
Steinrück HansPeter
Publication year - 2009
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.200904488
Subject(s) - sulfur , metastability , x ray photoelectron spectroscopy , isothermal process , catalysis , activation energy , in situ , chemistry , materials science , analytical chemistry (journal) , thermodynamics , chemical engineering , environmental chemistry , physics , organic chemistry , engineering
Steps in the right direction : The role of steps in the removal of sulfur from a Pt model catalyst, via metastable SO 3 and SO 4 species, was demonstrated by in situ high‐resolution X‐ray photoelectron spectroscopy. From isothermal experiments the activation energy of the rate‐determining step was deduced to be 34 kJ mol −1 .