Controllable synthesis of pompon-like carbon nitride with abundant intrinsic defect sites for the cycloaddition reaction of CO2 with epichlorohydrin

Exploring the Performance Improvement for CO2 Chemical Fixation in Zn/ZnMg-MOFs

“…15 Homogeneous catalysts, such as ionic liquid catalysts and soluble transition metal compounds (salts and complexes), 16,17 suffer from difficult recovery. Some heterogeneous catalysts, such as metal oxides, 18 zeolites, 19 organocatalysts, and carbon nitride materials, 20,21 mostly require high temperature and high pressure. Metal−organic frameworks (MOFs), self-assembled by metal ions or clusters of metals with organic ligands, are a kind of highly promising heterogeneous catalyst due to their porosity and large specific surface area.…”

“…Homogeneous catalysts, such as ionic liquid catalysts and soluble transition metal compounds (salts and complexes), , suffer from difficult recovery. Some heterogeneous catalysts, such as metal oxides, zeolites, organocatalysts, and carbon nitride materials, , mostly require high temperature and high pressure. Metal–organic frameworks (MOFs), self-assembled by metal ions or clusters of metals with organic ligands, are a kind of highly promising heterogeneous catalyst due to their porosity and large specific surface area. − In recent years, numerous MOF-based catalysts have also shown remarkable progress in the cycloaddition of carbon dioxide to epoxides, such as ZnMOF-1-NH 2 , Zn-2PDC, Zn-DAT, Cu-URJC-8, Cd-TCA, {[Co­(L)]·DMF·2H 2 O} n , {Ni­(muco)­(bpa)­(2H 2 O)}·2H 2 O, and so on. − However, the catalytic performance of the MOF-based catalysts reported for CO 2 chemical fixation remains unsatisfactory in terms of recyclability, turnover frequency (TOF), and stability. , Therefore, a necessity emerges to develop efficient heterogeneous catalysts for the chemical fixation of CO 2 , delivering both high conversion and enduring stability.…”