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Atom-level Interaction Design Between Amines and Support for Achieving Efficient and Stable CO Capture

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Journal Nat Commun
Specialty Biology
Date 2024 Jun 13
PMID 38871697
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Abstract

Amine-functionalized adsorbents offer substantial potential for CO capture owing to their selectivity and diverse application scenarios. However, their effectiveness is hindered by low efficiency and unstable cyclic performance. Here we introduce an amine-support system designed to achieve efficient and stable CO capture. Through atom-level design, each polyethyleneimine (PEI) molecule is precisely impregnated into the cage-like pore of MIL-101(Cr), forming stable composites via strong coordination with unsaturated Cr acid sites within the crystal lattice. The resulting adsorbent demonstrates a low regeneration energy (39.6 kJ/mol), excellent cyclic stability (0.18% decay per cycle under dry CO regeneration), high CO adsorption capacity (4.0 mmol/g), and rapid adsorption kinetics (15 min for saturation at 30 °C). These properties stem from the unique electron-level interaction between the amine and the support, effectively preventing carbamate products' dehydration. This work presents a feasible and promising cost-effective and sustainable CO capture strategy.

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Atom-level interaction design between amines and support for achieving efficient and stable CO capture.

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References
1.
Rim G, Kong F, Song M, Rosu C, Priyadarshini P, Lively R . Sub-Ambient Temperature Direct Air Capture of CO using Amine-Impregnated MIL-101(Cr) Enables Ambient Temperature CO Recovery. JACS Au. 2022; 2(2):380-393. PMC: 8889612. DOI: 10.1021/jacsau.1c00414. View

2.
Shi X, Xiao H, Azarabadi H, Song J, Wu X, Chen X . Sorbents for the Direct Capture of CO from Ambient Air. Angew Chem Int Ed Engl. 2019; 59(18):6984-7006. DOI: 10.1002/anie.201906756. View

3.
Pang S, Lee L, Sakwa-Novak M, Lively R, Jones C . Design of Aminopolymer Structure to Enhance Performance and Stability of CO Sorbents: Poly(propylenimine) vs Poly(ethylenimine). J Am Chem Soc. 2017; 139(10):3627-3630. DOI: 10.1021/jacs.7b00235. View

4.
Dutcher B, Fan M, Russell A . Amine-based CO2 capture technology development from the beginning of 2013-a review. ACS Appl Mater Interfaces. 2015; 7(4):2137-48. DOI: 10.1021/am507465f. View

5.
Moon H, Carrillo J, Leisen J, Sumpter B, Osti N, Tyagi M . Understanding the Impacts of Support-Polymer Interactions on the Dynamics of Poly(ethyleneimine) Confined in Mesoporous SBA-15. J Am Chem Soc. 2022; 144(26):11664-11675. DOI: 10.1021/jacs.2c03028. View