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一、前言固体物质的比表面积对物质的物理化学性能及其所进行的物理化学过程起着重要作用。由于 BET 法公认比较准确、数据重现性高,因此被人们认为是测定固体物质比表面积的标准方法,而其它方法则往往用BET 法来校准。BET 容量法所选择的吸附质有各种气体。由于 N_2
I. INTRODUCTION The specific surface area of a solid material plays an important role in the physical and chemical properties of the material and in the physical and chemical processes it conducts. The BET method is generally accepted as a standard method of determining the specific surface area of solid materials due to its more accurate and reproducible data, whereas other methods are often calibrated using the BET method. Adsorbents of the BET capacity method have various gases. Due to N_2