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测量和研究吸附热对探讨多相催化过程及固体催化剂表面活性中心、结构和吸附特性等均有重要意义。本文参照Richardson及杨梦彦的方法,将差热技术与色谱技术相结合,建立了适于测定气-固不可逆吸附的微分吸附热的量热系统。用它测定了吡啶在γ-Al_2O_3及分子筛NaX沸石上的微分吸附热并初步探讨了它们的表面酸性。 1 实验
Measuring and studying the heat of adsorption is of great significance to the exploration of heterogeneous catalysis, solid catalyst surface activity centers, structure and adsorption properties. According to the methods of Richardson and Yang Mengyan, differential calorimetry and chromatographic techniques are combined to establish a calorimetric system suitable for the determination of differential heat of adsorption for gas-solid irreversible adsorption. The differential heat of adsorption of pyridine on γ-Al 2 O 3 and zeolite NaX zeolite was measured and the surface acidity of pyridine was also discussed. 1 experiment