Modelling adsorption based on an isoreticular <scp>MOF</scp> ‐series of <scp>IFPs</scp> –Part <scp>I</scp> : Collection of physical properties and single component equilibria

An isoreticular series of metal organic frameworks (MOFs) IFPs (IFP, imidazolate Potsdam) is investigated for their morphological properties and adsorption behaviour. The materials are characterized phenomenologically with respect to particle size tendency agglomerate formation, internal structure. For this purpose, material densities, pore distributions, specific inner surfaces, porosities determined. main part the investigation based on analysis gravimetrically determined equilibria carbon dioxide (CO2) methane (CH4) modelling. In context, two different approaches consideration buoyancy sample compared. adjusted measurement data globally approximated as sets isotherms at temperatures modifications Langmuir model. Results show that both models well suited interpolation experimental in temperature range under consideration. Comparison heats derived from isosteric method values extracted model equations confirms them physically consistent. This provides opportunity numerically simulate dynamic separation CO2/CH4-mixtures heat tone single component data. can be divided into categories. One exclusively microporous (IFP-4, -6, -7, -8), while other exhibits hierarchical structures micropores coupled mesopores (IFP-1, -2, -3, -5). Equilibrium indicate latter better due higher selectivities capacities.