The Mechanism for NOx Storage
Journal article, 2000
The mechanisms for storing of NOx in platinum-barium-alumina catalysts during lean-rich transients are investigated. Oxidation of NO to NO2 is found to be an important step. NO2 is found to be important for oxidation of the catalyst or of nitrites to form nitrates. NOx is then stored in the form of surface nitrates. FTIR studies show no formation of bulk nitrates in these experiments.
lean burn
NOx storage catalyst
barium
surface nitrates
nitrogen oxides
NO2
platinum
Author
Erik Fridell
Chalmers, Applied Physics, Chemical Physics
Competence Centre for Catalysis (KCK)
Hans Persson
Chalmers, Applied Physics
Competence Centre for Catalysis (KCK)
Björn Westerberg
Department of Chemical Reaction Engineering
Competence Centre for Catalysis (KCK)
Louise Olsson
Department of Chemical Reaction Engineering
Competence Centre for Catalysis (KCK)
Magnus Skoglundh
Competence Centre for Catalysis (KCK)
Department of Applied Surface Chemistry
Catalysis Letters
1011-372X (ISSN) 1572-879X (eISSN)
Vol. 66 1-2 71-74Driving Forces
Sustainable development
Areas of Advance
Nanoscience and Nanotechnology
Transport
Energy
Materials Science
Subject Categories (SSIF 2011)
Chemical Engineering
DOI
10.1023/A