The evolution of surface species by steam pre-treatment on CrOx/Al2O3 catalysts for propane dehydrogenation

Zhiqian Lin, Hualiang Zuo,Rui Ma, Huaiqing An, Pengwei Zhao,Kaijun Liang, Mingshan Wang,Fushen Lu,Guojun Zou

Molecular Catalysis（2023）

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摘要

•The surface hydroxylation of CrOx/Al2O3 catalysts can construct oxygen defect sites.•The thermally unstable oxygen defect sites were responsible for catalyzing PDH.•The strategy of constructing oxygen defect sites is applicable to other oxide materials.

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关键词

Propane dehydrogenation,CrOx/Al2O3 catalyst,Steam treatment,Hydroxyl groups,Oxygen defect sites

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