Local Catalytic Ignition during CO Oxidation on Low-Index Pt and Pd Surfaces: A Combined PEEM, MS, and DFT Study
Artikel i vetenskaplig tidskrift, 2012
Shedding light on light-off: Photoemission electron microscopy, DFT, and microkinetic modeling were used to examine the local kinetics in the CO oxidation on individual grains of a polycrystalline sample. It is demonstrated that catalytic ignition ("light-off") occurs easier on Pd(hkl) domains than on corresponding Pt(hkl) domains. The isothermal determination of kinetic transitions, commonly used in surface science, is fully consistent with the isobaric reactivity monitoring applied in technical catalysis. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
pd(110)
DFT calculations
reaction-kinetics
CO oxidation
heterogeneous catalysis
photoemission electron
platinum
catalytic ignition
Författare
D. Vogel
Fritz Haber Institute of the Max Planck Society
Technische Universitat Wien
C. Spiel
Technische Universitat Wien
Y. Suchorski
Technische Universitat Wien
Adriana Trinchero
Chalmers, Teknisk fysik, Kemisk fysik
Kompetenscentrum katalys (KCK)
R. Schlogl
Fritz Haber Institute of the Max Planck Society
Henrik Grönbeck
Chalmers, Teknisk fysik, Kemisk fysik
Kompetenscentrum katalys (KCK)
G. Rupprechter
Technische Universitat Wien
Angewandte Chemie - International Edition
1433-7851 (ISSN) 1521-3773 (eISSN)
Vol. 51 40 10041-10044Ämneskategorier (SSIF 2011)
Kemi
DOI
10.1002/anie.201204031