Low temperature CO oxidation over platinum and cobalt oxide catalysts
Artikel i vetenskaplig tidskrift, 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
Författare
Peter Thormählen
Institutionen för kemisk reaktionsteknik
Chalmers, Teknisk fysik, Kemisk fysik
Kompetenscentrum katalys
Magnus Skoglundh
Kompetenscentrum katalys
Institutionen för teknisk ytkemi
Erik Fridell
Kompetenscentrum katalys
Chalmers, Teknisk fysik, Kemisk fysik
Bengt Andersson
Kompetenscentrum katalys
Institutionen för kemisk reaktionsteknik
Journal of Catalysis
0021-9517 (ISSN) 1090-2694 (eISSN)
Vol. 188 2 300-310Drivkrafter
Hållbar utveckling
Styrkeområden
Nanovetenskap och nanoteknik
Transport
Energi
Materialvetenskap
Ämneskategorier
Kemiteknik
DOI
10.1006/jcat.1999.2665