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Kinetics and Deactivation of the NO Reduction by CO on Pt‐Supported Catalysts
Author(s) -
Frank Brigitta,
Renken Albert
Publication year - 1999
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/(sici)1521-4125(199906)22:6<490::aid-ceat490>3.0.co;2-9
Subject(s) - catalysis , kinetics , chemistry , dissociation (chemistry) , platinum , chemical engineering , inorganic chemistry , organic chemistry , physics , quantum mechanics , engineering
The reduction of NO by CO on Pt has been extensively investigated in the past since it helps to eliminate NO of the exhaust gas of cars. However, the dissociation of NO in this reaction and the deactivation of the NO/CO reaction on Pt‐supported catalysts still need to be discussed. In this work, the reduction of NO with CO is examined on a 0.5 % Pt‐3.4 % MoO 3 /α‐Al 2 O 3 catalyst. The results of a kinetic modeling are presented and a new proposition concerning the mechanism of the observed deactivation is made. To the authors knowledge, this is the first study where the kinetics of the N 2 O formation on a Pt‐catalyst is established.