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Reactions of CH 3 O 2 radicals on solid surface
Author(s) -
Manucharova L. A.,
Tsarukyan S. V.,
Vardanyan I. A.
Publication year - 2004
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.20031
Subject(s) - radical , chemistry , peracetic acid , activation energy , atmospheric temperature range , reactivity (psychology) , reaction mechanism , homogeneous , photochemistry , organic chemistry , hydrogen peroxide , catalysis , thermodynamics , medicine , physics , alternative medicine , pathology
The reaction probability of CH 3 O 2 radicals with NO 2 , CH 4 , C 3 H 6 , and CH 3 CHO on the solid surface of KCl in flow at low pressure and temperature range of 297–353 K has been studied. The chosen conditions allowed excluding homogeneous interaction of radicals. The heterogeneous radical decay of peracetic acid served as a source of CH 3 O 2 radicals. On the basis of ESR measurements of CH 3 O 2 radicals with the above‐mentioned compounds, a heterogeneous reaction mechanism has been identified. The reactivity of NO 2 was greatest for the compounds studied. The effective activation energy was evaluated to be 10.4 ± 0.8 kJ/mol for the reaction of RO 2 radicals with NO 2 and −21.3 ± 2.8 kJ/mol for methane. © 2004 Wiley Periodicals, Inc. Int J Chem Kinet 36: 591–595, 2004
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