Dataset：Potassium Modification on Al₂O₃ Surface and Synergistic Regulation of Propane Dehydrogenation PtSn Active Sites

The data mainly come from the preparation, characterization, and catalytic performance testing of the catalysts. In the experiment, PtSn-Kx/Al₂O₃ catalysts with different K loadings (0.3, 0.5, and 1.0 wt%) were prepared using the impregnation method.

The dataset contains the physical, chemical, and catalytic performance data of the catalysts with different K loadings.Data Processing StepsCatalyst Preparation: The dataset records the process of loading K onto the Al₂O₃ surface using potassium acetate (CH₃COOK) as the K precursor. The precursor was dissolved in ethanol, and after ultrasonic treatment, drying, and calcination, catalysts with different K loadings were obtained.Catalyst Characterization: The physical and chemical properties of the catalysts were analyzed using various characterization techniques, including X-ray powder diffraction (XRD), nitrogen adsorption-desorption, Fourier transform infrared spectroscopy (FT-IR), hydrogen temperature-programmed reduction (H₂-TPR), ammonia temperature-programmed desorption (NH₃-TPD), and X-ray photoelectron spectroscopy (XPS) to evaluate the catalyst structure, surface properties, and interactions with metal active sites.Catalytic Performance Testing: The catalytic performance of the catalysts was tested in a fixed-bed tubular reactor for propane dehydrogenation, recording the propane conversion and propene selectivity at 600°C.Data Content and Time/Space InformationTime: The dataset records the catalytic performance of the catalysts under different reaction conditions, especially in the propane dehydrogenation reaction.