Imidazolium-Based Ionic Polymers Containing Electrostatic and Triple Hydrogen Bond for Efficient Conversion of CO2 into Cyclic Carbonates - Details

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The　catalytic　conversion　of　carbon　dioxide　(CO2)　into　valuable　chemicals　offers　a　promising　solution　to　mitigate　global　warming.　However,　the　high　thermodynamic　and　kinetic　stability　makes　CO2　activation　challenging,　typically　requiring　harsh　conditions.　This　study　presents　an　ionic　polymer,　(HO)3-ImbTbIP,　synthesized　via　the　quaternarization　of　1,2,4,5-tetrakis(bromomethyl)benzene　(Tb)　with　1,3,5-tri(1H-imidazol-1-yl)benzene　(Imb)　and　2-(hydroxymethyl)-2-(1H-imidazol-1-yl)propane-1,3-diol　(HO)3.　The　polymer　features　imidazolium　ionic　liquids　and　triple　hydrogen　bonds,　where　(HO)3　moieties　weaken　the　C─O　bond　of　epoxides,　and　bromide　anions　act　as　nucleophiles　to　facilitate　epoxide　ring-opening.　Simultaneously,　CO2　activated　by　imidazolium　reacts　with　oxyanion　intermediates　to　form　alkyl　carbonate　species.　Remarkably,　(HO)3-ImbTbIP　efficiently　converts　CO2　to　cyclic　carbonates　under　mild　conditions　(120　°C,　1 bar　CO2).　This　work　advances　the　understanding　of　CO2　conversion　and　highlights　the　potential　of　task-specific　polymers　for　sustainable　catalysis.　©　2025　Wiley-VCH　GmbH.

Keyword：

CO2 conversion Cyclic carbonates Electrostatic hydrogen bond Heterogeneous Catalysis Ionic polymer

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[ 1 ] [Xu X.]Key Laboratory of Jiangxi Province for Special Optoelectronic Artificial Crystal Materials, School of Chemistry and Chemical Engineering, Jinggangshan University, Jiangxi Province, Ji'an, 343009, China
[ 2 ] [Xu X.]School of Chemistry and Chemical Engineering, Jiangxi University of Science and Technology, Jiangxi, Ganzhou, 341000, China
[ 3 ] [Sui Y.]Key Laboratory of Jiangxi Province for Special Optoelectronic Artificial Crystal Materials, School of Chemistry and Chemical Engineering, Jinggangshan University, Jiangxi Province, Ji'an, 343009, China
[ 4 ] [Chen W.]Key Laboratory of Jiangxi Province for Special Optoelectronic Artificial Crystal Materials, School of Chemistry and Chemical Engineering, Jinggangshan University, Jiangxi Province, Ji'an, 343009, China
[ 5 ] [Chai L.]Key Laboratory of Jiangxi Province for Special Optoelectronic Artificial Crystal Materials, School of Chemistry and Chemical Engineering, Jinggangshan University, Jiangxi Province, Ji'an, 343009, China
[ 6 ] [Li X.]Key Laboratory of Jiangxi Province for Special Optoelectronic Artificial Crystal Materials, School of Chemistry and Chemical Engineering, Jinggangshan University, Jiangxi Province, Ji'an, 343009, China
[ 7 ] [Huang W.]Key Laboratory of Jiangxi Province for Special Optoelectronic Artificial Crystal Materials, School of Chemistry and Chemical Engineering, Jinggangshan University, Jiangxi Province, Ji'an, 343009, China
[ 8 ] [Zhou G.]Key Laboratory of Jiangxi Province for Special Optoelectronic Artificial Crystal Materials, School of Chemistry and Chemical Engineering, Jinggangshan University, Jiangxi Province, Ji'an, 343009, China
[ 9 ] [Li Y.]Key Laboratory of Jiangxi Province for Special Optoelectronic Artificial Crystal Materials, School of Chemistry and Chemical Engineering, Jinggangshan University, Jiangxi Province, Ji'an, 343009, China
[ 10 ] [Zhong H.]Key Laboratory of Jiangxi Province for Special Optoelectronic Artificial Crystal Materials, School of Chemistry and Chemical Engineering, Jinggangshan University, Jiangxi Province, Ji'an, 343009, China
[ 11 ] [Zhong H.]State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350116, China

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Imidazolium-Based Ionic Polymers Containing Electrostatic and Triple Hydrogen Bond for Efficient Conversion of CO2 into Cyclic Carbonates
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ChemCatChem

ISSN： 1867-3880

Year： 2025

3 . 8 0 0

JCR@2023

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ESI Highly Cited Papers on the List： 0 Unfold All

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