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.

platinum

CO oxidation

pd(110)

reaction-kinetics

photoemission electron

DFT calculations

heterogeneous catalysis

catalytic ignition

Författare

D. Vogel

Max Planck-institutet

Technische Universität Wien

C. Spiel

Technische Universität Wien

Y. Suchorski

Technische Universität Wien

Adriana Trinchero

Kompetenscentrum katalys (KCK)

Chalmers, Teknisk fysik, Kemisk fysik

R. Schlogl

Max Planck-institutet

Henrik Grönbeck

Chalmers, Teknisk fysik, Kemisk fysik

Kompetenscentrum katalys (KCK)

G. Rupprechter

Technische Universität Wien

Angewandte Chemie - International Edition

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

Vol. 51 10041-10044

Ämneskategorier

Kemi

DOI

10.1002/anie.201204031