On the mechanism of n-butane disproportionation over platinum supported on tungstated zirconia: Isotopic labeling studies

Gustavo Larsen; Lucía M. Petkovic

doi:10.1016/S1381-1169(96)00270-1

On the mechanism of n-butane disproportionation over platinum supported on tungstated zirconia: Isotopic labeling studies

Gustavo Larsen, Lucía M. Petkovic

Research output: Contribution to journal › Article

16 Scopus citations

Abstract

The reactions of n-butane over platinum supported on tungstated zirconia in the presence of hydrogen were studied using isotopically labeled n-butanes and deuterium. All reaction pathways experience isotopic effects when the hydrogen flow is replaced by an equal flow of deuterium. The non-rate limiting formation of a bimolecular intermediate appears to account for the disproportionation products. Mass spectrometric analysis of the product stream also reveals that the intramolecular 1-2 shift of the labeled primary carbon atoms is easily detected under primary-product-only reaction regimes.

Original language	English (US)
Pages (from-to)	517-522
Number of pages	6
Journal	Journal of Molecular Catalysis A: Chemical
Volume	113
Issue number	3
DOIs	https://doi.org/10.1016/S1381-1169(96)00270-1
State	Published - Dec 10 1996

Keywords

Disproportionation mechanism
Isotopic effect
Tungstated zirconia
n-Butane labeling

ASJC Scopus subject areas

Catalysis
Process Chemistry and Technology
Physical and Theoretical Chemistry

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Larsen, G., & Petkovic, L. M. (1996). On the mechanism of n-butane disproportionation over platinum supported on tungstated zirconia: Isotopic labeling studies. Journal of Molecular Catalysis A: Chemical, 113(3), 517-522. https://doi.org/10.1016/S1381-1169(96)00270-1

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