Premium
Local Reaction Kinetics by Imaging: CO Oxidation on Polycrystalline Platinum
Author(s) -
Suchorski Yuri,
Spiel Christian,
Vogel Diana,
Drachsel Wolfgang,
Schlögl Robert,
Rupprechter Günther
Publication year - 2010
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201000599
Subject(s) - kinetics , crystallite , platinum , spectroscopy , chemistry , chemical kinetics , foil method , materials science , analytical chemistry (journal) , crystallography , physics , catalysis , organic chemistry , quantum mechanics , composite material
The locally resolved kinetics of CO oxidation on individual (111), (110) and (100) domains of a polycrystalline Pt foil were obtained by intensity analysis of video‐PEEM images (see picture), and are compared to the global kinetics determined simultaneously by mass spectroscopy. The individual domains behave independently, with the propagating reaction fronts being confined within the grain boundaries.