Supramolecular Complexation-Enhanced CO2 Chemisorption in Amine-Derived Sorbents

Errui Li; Bo Li; Arvind Ganesan; Liqi Qiu; De en Jiang; Shannon M. Mahurin; Subhamay Pramanik; Ilja Popovs; Zhenzhen Yang; Sheng Dai

doi:10.1002/chem.202402137

Supramolecular Complexation-Enhanced CO₂ Chemisorption in Amine-Derived Sorbents

Errui Li, Bo Li, Arvind Ganesan, Liqi Qiu, De en Jiang, Shannon M. Mahurin, Subhamay Pramanik, Ilja Popovs, Zhenzhen Yang, Sheng Dai

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

A supramolecular complexation approach is developed to improve the CO₂ chemisorption performance of solvent-lean amine sorbents. Operando spectroscopy techniques reveal the formation of carbamic acid in the presence of a crown ether. The reaction pathway is confirmed by theoretical simulation, in which the crown ether acts as a proton acceptor and shuttle to drive the formation and stabilization of carbamic acid. Improved CO₂ capacity and diminished energy consumption in sorbent regeneration are achieved.

Original language	English
Article number	e202402137
Journal	Chemistry - A European Journal
Volume	30
Issue number	48
DOIs	https://doi.org/10.1002/chem.202402137
State	Published - Aug 27 2024

Funding

The research was supported financially by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences, US Department of Energy.

Keywords

Amine sorbents
CO Chemisorption
Carbamic acid
Intermolecular proton transfer
Supramolecular complexation

Access to Document

10.1002/chem.202402137

Cite this

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title = "Supramolecular Complexation-Enhanced CO2 Chemisorption in Amine-Derived Sorbents",

abstract = "A supramolecular complexation approach is developed to improve the CO2 chemisorption performance of solvent-lean amine sorbents. Operando spectroscopy techniques reveal the formation of carbamic acid in the presence of a crown ether. The reaction pathway is confirmed by theoretical simulation, in which the crown ether acts as a proton acceptor and shuttle to drive the formation and stabilization of carbamic acid. Improved CO2 capacity and diminished energy consumption in sorbent regeneration are achieved.",

keywords = "Amine sorbents, CO Chemisorption, Carbamic acid, Intermolecular proton transfer, Supramolecular complexation",

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AU - Li, Errui

AU - Li, Bo

AU - Ganesan, Arvind

AU - Qiu, Liqi

AU - Jiang, De en

AU - Mahurin, Shannon M.

AU - Pramanik, Subhamay

AU - Popovs, Ilja

AU - Yang, Zhenzhen

AU - Dai, Sheng

PY - 2024/8/27

Y1 - 2024/8/27

N2 - A supramolecular complexation approach is developed to improve the CO2 chemisorption performance of solvent-lean amine sorbents. Operando spectroscopy techniques reveal the formation of carbamic acid in the presence of a crown ether. The reaction pathway is confirmed by theoretical simulation, in which the crown ether acts as a proton acceptor and shuttle to drive the formation and stabilization of carbamic acid. Improved CO2 capacity and diminished energy consumption in sorbent regeneration are achieved.

AB - A supramolecular complexation approach is developed to improve the CO2 chemisorption performance of solvent-lean amine sorbents. Operando spectroscopy techniques reveal the formation of carbamic acid in the presence of a crown ether. The reaction pathway is confirmed by theoretical simulation, in which the crown ether acts as a proton acceptor and shuttle to drive the formation and stabilization of carbamic acid. Improved CO2 capacity and diminished energy consumption in sorbent regeneration are achieved.

KW - Amine sorbents

KW - CO Chemisorption

KW - Carbamic acid

KW - Intermolecular proton transfer

KW - Supramolecular complexation

UR - https://www.scopus.com/pages/publications/85200513826

U2 - 10.1002/chem.202402137

DO - 10.1002/chem.202402137

M3 - Article

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VL - 30

JO - Chemistry - A European Journal

JF - Chemistry - A European Journal

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