초록 |
COF are a new class of porous crystalline materials composed of lightweight elements such as carbon, nitrogen and oxygen. The recently developed COFs composed of the C-N linkages are found to have enhanced chemical stability. However the reported imine-linked COFs typically possesses moderate specific surface areas and mesoporous pore due to its relatively designed large pore. Therefore the design for new COF with excellent porosity, high specific surface area and microporous for gas storage is highly desired. Here we introduce a new imine-linked COF, which features microporosity. Through the optimization process, imine-linked COF showed high crystallinity and high specific surface area, which is close to theoretical surface area. |