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) |
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Pages (from-to) | 517-522 |
Number of pages | 6 |
Journal | Journal of Molecular Catalysis A: Chemical |
Volume | 113 |
Issue number | 3 |
DOIs | |
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