Based on the molecular understanding of the interplay of diffusion and adsorption, new membrane materials can be developed and the operational conditions of gas separation membranes can be optimized. Therefore, numerous diffusion and adsorption studies are conducted to optimize membrane materials. However, in an opposite way, transport or Fickian diffusion coefficients D_T can be derived from membrane permeation studies with surprising accuracy. From measuring the gas transport through nanoporous supported thin-layer membranes or through mixed matrix membranes with nanoporous fillers in a polymer matrix, the transport diffusion coefficients D_T of gases in novel nanoporous materials such as zeolites, MOFs, COFs… can be estimated.

基于分子对扩散和吸附相互作用的理解，可以开发新的膜材料并优化气体分离膜的操作条件。因此，进行了大量的扩散和吸附研究以优化膜材料。然而，以相反的方式，可以从膜渗透研究以惊人的准确性推导传输或菲克扩散系数D _T。通过测量气体通过纳米多孔支撑薄膜或聚合物基质中带有纳米孔填料的混合基质膜的气体传输，可以估算出新型纳米多孔材料（如沸石，MOF，COFs）中气体的传输扩散系数D _T。