Diffusion in Porous Solids: Insights into the Effect of Pore Structure

该项目将通过使用零长度色谱柱(ZLC)和含有一系列分子(包括Ar、N2、CO2、正构烷烃和甲苯)的吸附差示容积仪(ADVA)测量单个商业珠粒、颗粒和成型材料上的质量传输和吸附来解决这一差距。然后，相同的珠子将在FIB-FE设施中进行测试，以获得纳米级的详细结构信息。该项目的主要成果将是关于同一珠粒的结构和质量传输信息的大型数据库，这将成为验证预测多孔材料扩散的先进多尺度建模方法的基础。

This project will address this gap by measuring mass transport and adsorption on individual commercial beads, pellets and formed materials using the zero length column (ZLC) and the adsorption differential volumetric apparatus (ADVA) with a range of molecules (including Ar, N2, CO2, n-alkanes and toluene). The same beads will be then tested in the FIB-FEM facility to obtain detailed structural information at the nanoscale. The main outcome of the project will be a large database of structural and mass transport information on the same individual beads, which will form the basis for validating advanced multiscale modelling approaches to predict diffusion in porous materials.