Carbon Dioxide Conversion Upgraded by Host‐guest Cooperation between Nitrogen‐Rich Covalent Organic Framework and Imidazolium‐Based Ionic Polymer

Abstract

Invited for this month's cover are the groups of Rongjian Sa and Ruihu Wang at Minjiang University and the Chinese Academy of Sciences. The image shows how host–guest composite catalysts with task‐specific components for the cycloaddition of CO2 with epoxides have been developed through integrating nitrogen‐rich covalent organic framework and imidazolium‐based ionic polymer. The Full Paper itself is available at 10.1002/cssc.202006158.

Ag Nanoparticles Anchored on Nanotubular Porous Porphyrin Networks for Carboxylative Cyclization of Propargyl Alcohols with CO2

“…The corresponding product was achieved in promising yield (83%) under 2.0 MPa initial pressure at 30 °C for 15 h (Table 1, entry 12). This noteworthy result could allow for the application of Ag@NT‐PPN in chemical fixation of post‐combustion CO 2 [27] …”

“…This noteworthy result could allow for the application of Ag@NT-PPN in chemical fixation of post-combustion CO 2 . [27] Furthermore, the influence of reaction time on this reaction was illustrated in Figure 5A. The yield of target product increased gradually with reaction time.…”

Synthesis of porous poly(ionic liquid)s for chemical CO2fixation with epoxides

“…However, the preparation of COFs from ionic monomers is difficult as it increases the repulsion between the adjacent layers; thus the successful synthesis usually requires a plethora of error-trials and screens of synthetic parameters (solvent, temperature, time, etc.). 138,141,142 Guanidinium based ILs are a kind of commonly used ionic salt for the synthesis of functional porous PILs. In 2019, Yavuz and co-workers reported the synthesis of guanidinium based porous PILs (COP-213) through the Schiff base condensation of triaminoguanidinium halide and triphenyl benzene β ketoenols.…”

A Rising Star from Two Worlds: Collaboration of COFs and ILs

“…Recently, integrating 3‐ethyl‐1‐vinyl‐imidazolium bromide IL polymer (ImIP) with nitrogen‐rich TT‐COF (monomers: 1H‐1,2,4‐triazole‐3,5‐diamine (TDA), 2,4,6‐triformylphloroglucinol (TP)) to construct ImIP@TT‐COF brought the combinatorial innovation for catalyzing cycloaddition reaction of CO 2. [ 40 ] The catalytic reaction was performed under the conditions of 2‐(chloromethyl)oxirane and CO 2 as reactants. The results showed that the yield of 4‐(chloromethyl)‐1,3‐dioxolan‐2‐one was up to 99% with ImIP@TT‐COF as catalyst, in a contrast, the catalytic activity of TT‐COF and ImIP afforded only 43% and 36%.…”