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- W2890779721 abstract "The influences of support (SiO2 versus Al2O3), synthesis method (impregnation versus colloidal synthesis) and Sn loading on the performance of Sn-promoted Pt nanoparticles for propane dehydrogenation to propene at 773 K were explored. Catalysts were characterized extensively by X-ray diffraction, temperature-programmed reduction/oxidation, chemisorption, electron microscopy, X-ray photoelectron spectroscopy, and DRIFTS of adsorbed CO. Catalyst stability and selectivity to propene were correlated with extent of Pt-Sn interactions within the nanoparticles, which was favored at high Sn loading, and when the particles were supported on a weakly interacting carrier such as silica. However, oxidative regeneration irreversibly deactivated bimetallic nanoparticles on silica relative to those on alumina. The extended performance of Sn-promoted Pt catalysts is an optimization of the Pt-Sn interactions with the ability to oxidatively redisperse the metals during regeneration." @default.
- W2890779721 created "2018-09-27" @default.
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- W2890779721 date "2018-11-01" @default.
- W2890779721 modified "2023-10-14" @default.
- W2890779721 title "Propane dehydrogenation over supported Pt-Sn nanoparticles" @default.
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- W2890779721 doi "https://doi.org/10.1016/j.jcat.2018.09.006" @default.
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