多层吸附理论(简称 BET 方程)是目前最流行的比表面计算方法。最初的 BET 工作是建立在 氮吸附Ⅱ类等温线上,各种无孔吸附剂可以在 P/P0 0.05-0.3 的范围内给出线性 BET 图,继而计算 出比表面值。孔隙度(如微孔和介孔的存在)对 BET 方程的适用性有重要影响。BET 方程可以应用在非孔 和较宽孔直径的介孔材料的比表面分析,但严格意义上,不能用于微孔吸附材料,因为单层-多层 吸附过程通常在相对压力(p/p0)小于 0.1 时就完成了,在微
Microporous materials are defined as materials containing pores which have diameters less than 2 nm. An important characteristic of all porous materials is the materials surface area, commonly calculated utilizing the BET equation
Knowing the properties and behavior of powders and granular media is essential for many industrial applications. Powder behavior is not only critical for the manufacturing process and transportation, but it also influences the pro