Adsorption isotherms of carbon dioxide were measured on a family of IPC-2, IPC-4, IPC-6, and IPC-7 siliceous isoreticular zeolites prepared from UTL germanosilicate. New strategy called ADOR allowed to synthesize isoreticular materials having the same structure of individual layers but gradually reduced channel size of 9.5 × 7.1 (14-ring), 8.5 × 5.5 (12-ring), 6.6 × 6.2 (12-ring), 5.4 × 5.3 (10-ring) and 4.5 × 3.6 (8-ring) Å. These IPC-n zeolites present an excellent set of siliceous model materials to analyze the effect of micropore structure on adsorption of carbon dioxide. Isosteric adsorption heats of carbon dioxide were determined from adsorption isotherms measured in the range 273 K–333 K up to 101 kPa. Obtained dependences of the adsorption heat of CO₂ on the amount adsorbed are more sensitive to the adsorbent structure than single adsorption isotherms. It appears that due to domination of dispersion interactions of carbon dioxide with zeolites under study isosteric adsorption heat characterizes the structure features of investigated zeolites with a higher resolution then adsorption isotherms.

在由UTL锗硅酸盐制备的IPC-2，IPC-4，IPC-6和IPC-7硅质网状沸石上测量了二氧化碳的吸附等温线。称为ADOR的新策略允许合成具有相同结构的单层材料，但逐渐减小通道尺寸，分别为9.5×7.1（14环），8.5×5.5（12环），6.6×6.2（12环），5.4 ×5.3（10圈）和4.5×3.6（8圈）Å。这些IPC- n沸石提供了一套出色的硅质模型材料，可分析微孔结构对二氧化碳吸附的影响。根据在273 K–333 K到101 kPa范围内测得的吸附等温线确定了二氧化碳的等温吸附热。求出CO ₂的吸附热的依存性吸附量比单一吸附等温线对吸附剂结构更敏感。似乎由于在研究中二氧化碳与沸石的分散相互作用的支配作用，等位吸附热表征了所研究沸石的结构特征，其分辨率高于吸附等温线。