Low temperature CO oxidation over platinum and cobalt oxide catalysts
Journal article, 1999
The low-temperature CO oxidation activity of three monolith catalysts (Pt/Al2O3, CoOx/Al2O3, and Pt/CoOx/Al2O3) has been studied. The catalytic properties of the catalysts were investigated by using different temperature-programmed methods: CO-TPD (desorption), TPO (oxidation), TPR (reduction), TPReaction, and CO light-off. Preoxidized cobalt-oxide-containing catalysts were found to be highly active for CO oxidation at temperatures as low as 200 K,and at these low temperatures the activity is independent of the presence of platinum. The catalytic properties and how they relate to the surface reaction kinetics are discussed.
temperature programmed desorption
catalyst pretreatment
platinum
temperature programmed reaction
catalytic oxidation of carbon monoxide
low temperature activity
temperature programmed reduction
cobalt oxide
temperature programmed oxidation
Author
Peter Thormählen
Department of Chemical Reaction Engineering
Chalmers, Applied Physics, Chemical Physics
Competence Centre for Catalysis (KCK)
Magnus Skoglundh
Competence Centre for Catalysis (KCK)
Department of Applied Surface Chemistry
Erik Fridell
Competence Centre for Catalysis (KCK)
Chalmers, Applied Physics, Chemical Physics
Bengt Andersson
Competence Centre for Catalysis (KCK)
Department of Chemical Reaction Engineering
Journal of Catalysis
0021-9517 (ISSN) 1090-2694 (eISSN)
Vol. 188 2 300-310Driving Forces
Sustainable development
Areas of Advance
Nanoscience and Nanotechnology
Transport
Energy
Materials Science
Subject Categories
Chemical Engineering
DOI
10.1006/jcat.1999.2665