13C and 14C kinetic isotope effects in the catalytic oxidation of CO over ZnO

Article abstract of DOI:10.1063/1.444978

13C and 14C kinetic effects in the reaction CO+1/2 O2->CO2 over ZnO catalyst were experimentally determined.The k12/k13 and k12/k14 ratios were found to be temperature independent in the temperature range studied (200-500 deg C) and amounted to 1.0101+/-0.0010 and 1.0204+/-0.0019, respectively.Interpretation of the experimental values, following Bigeleisen's formalism, reveals that (CO2)(excit) with an interband angles of (90+/-10) deg and planar (CO3) (excit) with two interband angles in the range of (120+/-10) deg may be considered as activated complexes of the rate determining and isotope effect fractionation governing step of the reaction mechanism.

Full text of DOI:10.1063/1.444978

13C and 14C kinetic isotope effects in the catalytic oxidation of CO over ZnO
I. Kobal, M. Senegačnik, and H. Kobal
Citation: The Journal of Chemical Physics 78, 1815 (1983); doi: 10.1063/1.444978
View online: http://dx.doi.org/10.1063/1.444978
View Table of Contents: http://scitation.aip.org/content/aip/journal/jcp/78/4?ver=pdfcov
Published by the AIP Publishing
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
138.251.14.35 On: Sat, 20 Dec 2014 21:26:46

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
138.251.14.35 On: Sat, 20 Dec 2014 21:26:46

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
138.251.14.35 On: Sat, 20 Dec 2014 21:26:46

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
138.251.14.35 On: Sat, 20 Dec 2014 21:26:46

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
138.251.14.35 On: Sat, 20 Dec 2014 21:26:46

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
138.251.14.35 On: Sat, 20 Dec 2014 21:26:46

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
138.251.14.35 On: Sat, 20 Dec 2014 21:26:46

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
138.251.14.35 On: Sat, 20 Dec 2014 21:26:46

This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
138.251.14.35 On: Sat, 20 Dec 2014 21:26:46