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.

heterogeneous catalysis

catalytic ignition

pd(110)

reaction-kinetics

DFT calculations

photoemission electron

platinum

CO oxidation

Författare

D. Vogel

Max Planck-institutet

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

Max Planck-institutet

Henrik Grönbeck

Kompetenscentrum katalys (KCK)

Chalmers, Teknisk fysik, Kemisk fysik

G. Rupprechter

Technische Universitat Wien

Angewandte Chemie - International Edition

1433-7851 (ISSN) 1521-3773 (eISSN)

Vol. 51 10041-10044

Ämneskategorier

Kemi

DOI

10.1002/anie.201204031