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- W2286014773 abstract "Compared to metallic platinum and chromium oxide, zinc oxide (ZnO) is an inexpensive and low-toxic alternative for the direct dehydrogenation of propane (PDH). However, besides the limited activity, conventional zinc-based catalysts suffer from serious deactivation, because of ZnO reduction and/or carbon deposition. Considering the high cost of platinum, reducing the amount of platinum in the catalyst is always desirable. This paper describes a catalyst comprising ZnO modified by trace platinum supported on Al2O3, where the Zn2+ species serve as active sites and platinum acts as a promoter. This catalyst contains less platinum than traditional platinum-based catalysts and is much more stable than conventional ZnO catalyst or commercial chromium-based systems during PDH. It is proposed that ZnO was promoted to a stronger Lewis acid by platinum; thus, easier C–H activation and accelerated H2 desorption were achieved." @default.
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- W2286014773 date "2016-02-26" @default.
- W2286014773 modified "2023-10-17" @default.
- W2286014773 title "Platinum-Modified ZnO/Al<sub>2</sub>O<sub>3</sub> for Propane Dehydrogenation: Minimized Platinum Usage and Improved Catalytic Stability" @default.
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- W2286014773 doi "https://doi.org/10.1021/acscatal.5b02878" @default.
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