Progress in Porous Organic Polymer for Chemical Fixation of Carnbon Dioxide

Porous organic polymers (POPs) are a new class of porous materials that connect organic structural units by covalent bonds, having the features of various synthetic methods, adjustable pore properties, stable pore structures, low relative density and large specific surface areas. POPs have been applied in fields of gas adsorptions, separations and storage, optoelectronic devices, sensing and heterogeneous catalysis, showing the important application value. Carbon capture, utilization and storage (CCUS) technology is the unique way to significantly reduce carbon dioxide (CO2) emissions from fossil fuels, and catalytic conversion of CO2 into valuable fuels or industrial value-added products is an effective and potential strategy to solve the utilization of renewable energy and realize the development of green chemistry. In this review, the synthesis and properties of covalent-organic frameworks (COFs), covalent triazine frameworks (CTFs), hypercrosslinked polymers (HCPs), conjugated microporous polymers (CMPs) and polymer of intrinsic microporosity (PIMs) and their progress of chemical fixation of CO2 in recent years, is reviewed, and the application prospects of POPs in CO2 catalysis are prospected.