PtSn propane dehydrogenation catalyst supported by γ-Al2O3: insight into the supports and active species interaction
Source abstract
Abstract
Three γ-Al2O3 supports were prepared by hydrothermal method, and PtSn/Al2O3 catalysts were prepared by sequential impregnation for propane dehydrogenation. The catalyst was characterized by TEM, PXRD, H2-TPR, and other characterization methods. The effects of different morphologies of PtSn/Al2O3 catalysts on the dehydrogenation performance and coking of propane were investigated. The results show that the exposed crystal planes of three morphologies of Al2O3 support are different, which makes the Lewis acid content on the support surface and the interaction of active metals on the support different, thus affecting the catalytic performance of the catalyst and coking carbon. Graphical Abstract Different morphologies of γ-Al2O3 expose different crystal planes, change the Lewis acid content on the surface of the support, and regulate the interaction between active metals and support, thus affecting propane dehydrogenation performance and catalyst coking.
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Research context
OpenAlex topics: Catalysis and Oxidation Reactions · Catalytic Processes in Materials Science · Radioactive element chemistry and processing
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