CO<sub>2</sub> capture by amine infused hydrogels (AIHs)

Xu, Xingguang; Heath, Charles; Pejcic, Bobby; Wood, Colin D.

doi:10.1039/c8ta00602d

Cited by 47 publications

(58 citation statements)

References 47 publications

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“…PEI has also been crosslinked using ECH to create effective membranes for CO 2 separation. 130,131 Sujan et al, modified PECH with secondary amines, which were loaded into mesoporous silica to create CO 2 sorbents. 132 Hu, Wu, and co-workers crosslinked 3-dimethylamino-1-propylamine with epichlorohydrin to produce membranes with hydroxyl groups and secondary, tertiary, and quaternary amines.…”

Section: Co 2 Separationmentioning

confidence: 99%

The versatile, functional polyether, polyepichlorohydrin: History, synthesis, and applications

Shukla

Ferrier

2021

Journal of Polymer Science

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Polyepichlorohydrin (PECH) is a functional polyether first synthesized in the 1950's by the catalytic ring opening polymerization of epichlorohydrin (ECH), its inexpensive epoxide pre-cursor. PECH elastomers are used in diverse commercial applications due to their unique combination of properties including low temperature flexibility and heat and oil resistance. PECH holds an interesting place in polymer history as its synthesis led to the discovery of highly effective aluminum-based catalysts for epoxide polymerizations and a new class of high molecular weight polyether elastomers by an exceptional polymer chemist, Edwin J. Vandenberg. ECH is an ideal feedstock for polymer materials as it is functional, inexpensive, and produced through environmentally friendly means. However, due to the alkyl chloride pendant, polymerizations involving ECH are difficult and limited synthetic advancement has occurred until very recently. This focused review will discuss modern polymerization methods involving ECH while giving a historical perspective on the evolution of these techniques. We will also review applications of ECH-based polymers and discuss the future development of these materials. We hope to convince the reader to explore ECH-based materials in their own work.

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Section: Co 2 Separationmentioning

confidence: 99%

The versatile, functional polyether, polyepichlorohydrin: History, synthesis, and applications

Shukla

Ferrier

2021

Journal of Polymer Science

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“…As aminas reagem com o CO 2 através da formação do (ou derivado do) ácido carbâmico ou do sal de carbamato -RR´NCOOe/ou carbonatos na presença de água [54]. Esta abordagem foi aplicada nos líquidos iónicos [55], hidrogéis [56], polímeros porosos [57][58][59], materiais inorgânicos como a sílica (dióxido de silício) [60] ou óxidos metálicos [61], estruturas metal-orgânicas (MOFs, Metal Organic Frameworks) [62], estruturas orgânicas covalentes (COFs, Covalent Organic Frameworks) [63] e também em DES [64][65][66][67][68]. Por exemplo, Trivedi et al [64] produziram um DES, [MEA•Cl][EDA] (1:3) (Figura 4) que proporcionou uma grande capacidade de captura de CO 2 em massa (31,5% ou 0,54 moles de CO 2 por mol de solvente a 1 bar e 303 K).…”

Section: Sistemaunclassified

Absorventes Emergentes para Separação de Gases

Moura¹

2021

BSPQuimica

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Gas separation and purification operations are relevant at levels ranging from industrial to societal, since they are necessary to produce everyday items, fuel materials, or for the capture of toxic or greenhouse gases. The importance of these types of operations along with the increasing need to develop sustainable industrial separation technologies has driven research in this field. In this article we will briefly review two absorbents in the field of gas capture and separation: deep eutectic solvents (DES) and porous liquids. We will discuss recent developments, the positive and negative aspects, recommendations, and future perspectives for both types of absorbents.

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“…Direct reduction of CO 2 in the flue gas could skip the carbon capture process. [11,12] The main challenge in the direct reduction approach is low catalytic efficiency due to low concentration of CO 2 . Therefore, increasing the selectivity and efficiency of the catalyst is particularly important for direct flue gas reduction.…”

Section: Introductionmentioning

confidence: 99%

“…Typically, adsorption or capture methods can be used to obtain concentrated CO 2 (>99 %). Direct reduction of CO 2 in the flue gas could skip the carbon capture process [11,12] . The main challenge in the direct reduction approach is low catalytic efficiency due to low concentration of CO 2 .…”

Section: Introductionmentioning

confidence: 99%

Imine‐Nitrogen‐Doped Carbon Nanotubes for the Electrocatalytic Reduction of Flue Gas CO₂

et al. 2021

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Imine-nitrogen-doped carbon nanotubes (NCNTs) were prepared by pyrolysis using polyaniline as a major nitrogen source. They can electrocatalytically reduce CO 2 to CO with high selectivity and efficiency. The current density of CO presented a volcanic distribution in the applied potential between À 0.53 and À 0.93 V (vs RHE), reaching 13.8 mA • cm À 2 at À 0.83 V. The maximum Faraday efficiency reached 93 % at À 0.63 V, and the current density of CO was 6.8 mA • cm À 2 . Furthermore, the catalyst can directly reduce CO 2 in simulated flue gas (15 % CO 2, 77 % N 2 and 8 % O 2 ) and exhibited a high CO FE of 70 %. The high catalytic activity originates from rich content of iminenitrogen in NCNTs, serving as the active sites for catalysis.

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CO₂ capture by amine infused hydrogels (AIHs)

Abstract: The AIHs are formed in 300 seconds by mixing hydrogel particles with liquid amine (left) which increases the contact area between the CO2 and the amine (right).

Cited by 47 publications

References 47 publications

The versatile, functional polyether, polyepichlorohydrin: History, synthesis, and applications

The versatile, functional polyether, polyepichlorohydrin: History, synthesis, and applications

Absorventes Emergentes para Separação de Gases

Imine‐Nitrogen‐Doped Carbon Nanotubes for the Electrocatalytic Reduction of Flue Gas CO₂

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CO2 capture by amine infused hydrogels (AIHs)

Abstract: The AIHs are formed in 300 seconds by mixing hydrogel particles with liquid amine (left) which increases the contact area between the CO2 and the amine (right).

Cited by 47 publications

References 47 publications

The versatile, functional polyether, polyepichlorohydrin: History, synthesis, and applications

The versatile, functional polyether, polyepichlorohydrin: History, synthesis, and applications

Absorventes Emergentes para Separação de Gases

Imine‐Nitrogen‐Doped Carbon Nanotubes for the Electrocatalytic Reduction of Flue Gas CO2

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Product

Resources

About

CO₂ capture by amine infused hydrogels (AIHs)

Imine‐Nitrogen‐Doped Carbon Nanotubes for the Electrocatalytic Reduction of Flue Gas CO₂