Trianglamine-Based Supramolecular Organic Framework with Permanent Intrinsic Porosity and Tunable Selectivity

Here we introduce for the first time a metal-free trianglamine-based supramolecular organic framework, T-SOF-1, with permanent intrinsic porosity and high affinity to CO2. The capability of tuning the pore aperture dimensions is also demonstrated by molecular guest encapsulation to afford excellent CO2/CH4 separation for natural gas upgrading.本研究首次报道了一款无金属的、基于三胺（trianglamine）的超分子有机框架（Supramolecular Organic Framework, SOF）材料T-SOF-1，该材料具备永久固有孔隙率，且对二氧化碳（CO₂）具有高亲和性。研究同时证实，可通过分子客体封装调控孔道孔径尺寸，以此实现优异的CO₂/甲烷（CH₄）分离性能，可用于天然气提质升级。