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Synergistic Mechanism of Platinum‐GaOx Catalysts for Propane Dehydrogenation.
- Source :
- Angewandte Chemie International Edition; 8/26/2022, Vol. 61 Issue 35, p1-7, 7p
- Publication Year :
- 2022
-
Abstract
- The synergy between metals and metal oxides can effectively improve the heterogeneous catalytic process. This paper describes the intrinsic effect of Pt modification over GaOx (Pt−GaOx) on propane dehydrogenation. The presence of Pt promotes H2 dissociation and surface coverage of hydrogen species, which is beneficial for the activation of C−H in propane. With excessive Pt, Gaδ+ can be further reduced to form Pt−Ga alloy with less surface hydrogen species. Consequently, the relative propylene formation rate between Pt−GaOx and the summed contribution of individual Pt and GaOx increases linearly with the content of hydrogen species. Optimally, the relative propylene formation rate of Pt−GaOx with 0.03 wt % Pt exceeds 25 % of the summed contribution of individual components. [ABSTRACT FROM AUTHOR]
- Subjects :
- DEHYDROGENATION
PROPANE
GALLIUM alloys
METALLIC oxides
CATALYSTS
PROPENE
Subjects
Details
- Language :
- English
- ISSN :
- 14337851
- Volume :
- 61
- Issue :
- 35
- Database :
- Complementary Index
- Journal :
- Angewandte Chemie International Edition
- Publication Type :
- Academic Journal
- Accession number :
- 158633991
- Full Text :
- https://doi.org/10.1002/anie.202201453