Local Catalytic Ignition during CO Oxidation on Low-Index Pt and Pd Surfaces: A Combined PEEM, MS, and DFT Study
Journal article, 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

Author

D. Vogel

Max Planck Institute

Vienna University of Technology

C. Spiel

Vienna University of Technology

Y. Suchorski

Vienna University of Technology

Adriana Trinchero

Competence Centre for Catalysis (KCK)

Chalmers, Applied Physics, Chemical Physics

R. Schlogl

Max Planck Institute

Henrik Grönbeck

Chalmers, Applied Physics, Chemical Physics

Competence Centre for Catalysis (KCK)

G. Rupprechter

Vienna University of Technology

Angewandte Chemie - International Edition

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

Vol. 51 40 10041-10044

Subject Categories

Chemical Sciences

DOI

10.1002/anie.201204031

More information

Latest update

3/2/2018 7