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- W4307909024 abstract "The intensification of Lewis acidity/basicity of a given heterogeneous catalyst at a molecular level is an advanced approach for boosting CO 2 activation and conversion under extremely mild conditions, which, yet remains a great challenge. This work proposes a one-pot strategy for heterogenization and aromatization of homopolymerized ionic liquids (HpolyILs) through dynamic imine assembly with aromatic spacers for boosting CO 2 conversion into cyclic carbonates. The aromatization of HpolyILs can be controllably achieved at room temperature, and has been proven to enhance the Lewis acidity of C-2 proton on imidazolium IL for promoting ring-opening of epoxides and facilitate CO 2 bending synchronously. The resultant dynamic covalent polyILs exhibit superior catalytic activity and outstanding recyclability for a variety of epoxides under extremely mild conditions (1 atm, 50-90 ºC) without metal/co-catalyst consumption. This work offers a feasible to scale-up approach for tailor-made designing high-efficiency heterogeneous catalysts for CO 2 utilization, guiding the precise regulation of acid-base catalysis. • Heterogenization of homopolymerized ionic liquids is afforded in one-pot by imine assembly with aromatic spacers • The aromatic moiety facilitates hydrogen bonding between C-2 proton and O on epoxides • CO 2 activation is achieved on aromatic moiety • Catalytic activity of dynamic covalent polyILs is facilely regulated through assembly process control • Metal-/cocatalyst-free and atmospheric CO 2 cycloaddition is achieved below 50 ºC" @default.
- W4307909024 created "2022-11-06" @default.
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- W4307909024 date "2023-03-01" @default.
- W4307909024 modified "2023-10-18" @default.
- W4307909024 title "One-pot non-covalent heterogenization and aromatization of poly(ionic liquids) for metal-/cocatalyst-free and atmospheric CO2 conversion" @default.
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- W4307909024 doi "https://doi.org/10.1016/j.apcatb.2022.122125" @default.
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