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首页> 外文期刊>Catalysis science & technology >Aqueous-phase reforming of xylitol over Pt/C and Pt/TiC-CDC catalysts: catalyst characterization and catalytic performance
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Aqueous-phase reforming of xylitol over Pt/C and Pt/TiC-CDC catalysts: catalyst characterization and catalytic performance

机译：木糖醇在PT/C和PT/TIC-CDC催化剂上的水相重构：催化剂表征和催化性能

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摘要

The aqueous phase reforming (APR) of xylitol was studied over five Pt/C catalysts. The correlation between physico-chemical properties of the catalysts and catalytic performance was established. The Pt/C catalysts have different textural properties as well as different mean Pt cluster sizes and surface acidity. The average Pt cluster size was investigated by means of CO chemisorption as well as by TEM. The reaction was found to be structure sensitive and TOF linearly increases with increasing average Pt cluster size in the studied domain. The catalysts which possess higher surface acidity favoured higher rates of hydrocarbon production. On the contrary the Pt/C materials with lower acidities generated hydrogen with high selectivity and TOF.
机译：在五个PT/C催化剂上研究了木糖醇的水相（APR）。 建立了催化剂的物理化学特性与催化性能之间的相关性。 PT/C催化剂具有不同的纹理特性以及不同的平均PT簇大小和表面酸度。 通过CO化学吸附和TEM研究了平均PT簇大小。 发现该反应是结构敏感的，TOF随着研究结构域中的平均PT簇大小的增加而线性增加。 具有较高表面酸度的催化剂有利于更高的烃产生速率。 相反，具有较低酸度的PT/C材料产生了具有高选择性和TOF的氢。

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