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Silicon and Low Pt Loading Improves Redox Dynamics and Regenerability in PtGa Propane Dehydrogenation Catalysts

Year: 2026

Type: article

Abstract: The increasing propene demand has accelerated the development of on-purpose propane dehydrogenation (PDH) technologies. While efficient Pt-Ga based PDH catalysts exist, the origin of the Si-promotional effect and the need of only small amounts of Pt are not fully understood. Herein, we find that, using surface organometallic chemistry, incorporating Si and decreasing the Pt-loading in Si-containing PtGacatalyst supported on alumina improve both stability and regenerability, due to optimal Pt-Ga dynamics as evidenced by in-situ/operando Xray absorption spectroscopy.

Source: Journal of the American Chemical Society

DOI: 10.1021/jacs.6c02694

Authors: Kazutaka Sakamoto, Milivoj Plodinec, Christoph R. Müller, Christophe Copéret

Institutions: ETH Zurich, Scientific Center for Optical and Electron Microscopy

Language: English

Topic: Catalysis and Oxidation Reactions

Subfield: Catalysis

Field: Chemical Engineering

Domain: Physical Sciences

Open Access status: green

Funders: European Synchrotron Radiation Facility, Clariant

OpenAlex ID: W7155088872

FWCI: 2.046

Cites: 29

Cited by: 2

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