前言固体孔径分布的测定和固体比表面的测定一样,在催化剂、吸附剂、色谱担体、耐火材料及天然岩石的研究中,具有重要的意义。资料曾报导了用Nelsen系统做出了全程吸附等温线,计算出了孔径分布。本工作在前文的基础上,对贵金属催化剂涂层的孔径分布的测定进行了研究,获得了满意的结果,达到了一机多用的目的。 Introduction Determination of solid pore size distribution is of great importance in the study of catalysts, adsorbents, chromatographic supports, refractories and natural rocks, as well as the determination of solids over specific surface areas. It has been reported that the entire adsorption isotherm was calculated using the Nelsen system and the pore size distribution was calculated. In this work, based on the foregoing, the determination of the pore size distribution of the precious metal catalyst coating was studied, and the satisfactory results were obtained, achieving the purpose of a multi-purpose machine.