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• W2164075096 abstract "A novel boron nitride (BN) supported Pt-Sn catalyst was used for the oxydehydrogenation of propane. BN is a graphite-like inert support which provides negligible interaction with metals. The Pt-Sn/BN catalysts were prepared by co-incipient wetness impregnation with various Sn loadings. A commercial support γ-Al2O3 was chosen to compare with BN. PtSn alloys were formed due to the partially reduced Sn in Pt-Sn/BN catalyst in H2 at 400 °C. Furthermore, the crystalline phases of PtSn and SnPt3 alloys were also observed from the XRD patterns of Pt-Sn/BN catalysts. However, PtSn alloys were not detected in Pt-Sn/γ-Al2O3 by XRD. The Sn addition clearly improved the activity and propylene selectivity of Pt-Sn/BN at 600 °C. The more the Sn loading, the higher the selectivity and yield of propylene were. A maximum yield of propylene (38.3%) was achieved on Pt-Sn (0.75 wt%)/BN catalyst at the start of reaction. The catalysts, Pt-Sn/γ-Al2O3, deactivated more rapidly than Pt-Sn/BN. The activity and selectivity enhancement are attributed to the formation of PtSn and/or SnPt3 alloy particles on the BN support. Compared with the hydrophilic γ-Al2O3, the hydrophobic BN surface can expel H2O during the oxidation of hydrogen resulting in the activity increase." @default.
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• W2164075096 date "2008-07-01" @default.
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• W2164075096 title "Novel BN supported bi-metal catalyst for oxydehydrogenation of propane" @default.
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• W2164075096 doi "https://doi.org/10.1016/j.cej.2007.11.009" @default.
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