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Polymers with Intrinsic Microporosity (PIMs) for targeted CO2 reduction to ethylene

Polymers with Intrinsic Microporosity (PIMs) for targeted CO2 reduction to ethylene
Polymers with Intrinsic Microporosity (PIMs) for targeted CO2 reduction to ethylene
CO2 reduction offers an attractive alternative green synthetic route for ethylene, especially where CO2 could be sourced from industrial exhausts and in combination with green power sources. However, practical applications are currently limited due to the unfortunately low selectivity of cathode materials towards ethylene. This work uses polymers with intrinsic microporosity (PIMs) to improve the performance of copper gas diffusion electrodes for CO2 reduction to ethylene. We report an improved selectivity and activity towards ethylene with the addition of a thin PIMs layer, which is seen as improved Faradaic efficiency, increased stability and a shift in the reduction to lower overpotential. This improvement is highly dependent on the thickness of the added polymer layer, with too thick a layer having a detrimental impact on the hydrophobicity of the gas diffusion layer. With a compromise in loading, PIMs can be used to enhance the activity and selectivity of catalysts for targeted CO2 reduction to ethylene.
Carbon dioxide, electrochemistry, ethylene, gas diffusion electrode, triphasic interface, with intrinsic microporosity
0045-6535
Perry, Samuel
8e204d86-4a9c-4a5d-9932-cf470174648e
Gateman, Samantha
deee4930-ed30-489c-b870-3f9711aa45a7
Malpass-Evansc, Richard
7a618f78-c061-426b-8b06-003e6ff734db
McKeown, Neil
3459b0b8-1dff-4a98-a141-fafcae610847
Wegener, Moritz
cd2da83f-2c40-493f-81f3-58dd53a898c1
Nazarovs, Pāvels
85218d6a-4018-4786-aab0-ed028e1b2c2c
Mauzeroll, Janine
af84f034-1e52-4419-a1c2-ce7116db5b07
Wang, Ling
c50767b1-7474-4094-9b06-4fe64e9fe362
Ponce De Leon Albarran, Carlos
508a312e-75ff-4bcb-9151-dacc424d755c
Perry, Samuel
8e204d86-4a9c-4a5d-9932-cf470174648e
Gateman, Samantha
deee4930-ed30-489c-b870-3f9711aa45a7
Malpass-Evansc, Richard
7a618f78-c061-426b-8b06-003e6ff734db
McKeown, Neil
3459b0b8-1dff-4a98-a141-fafcae610847
Wegener, Moritz
cd2da83f-2c40-493f-81f3-58dd53a898c1
Nazarovs, Pāvels
85218d6a-4018-4786-aab0-ed028e1b2c2c
Mauzeroll, Janine
af84f034-1e52-4419-a1c2-ce7116db5b07
Wang, Ling
c50767b1-7474-4094-9b06-4fe64e9fe362
Ponce De Leon Albarran, Carlos
508a312e-75ff-4bcb-9151-dacc424d755c

Perry, Samuel, Gateman, Samantha, Malpass-Evansc, Richard, McKeown, Neil, Wegener, Moritz, Nazarovs, Pāvels, Mauzeroll, Janine, Wang, Ling and Ponce De Leon Albarran, Carlos (2020) Polymers with Intrinsic Microporosity (PIMs) for targeted CO2 reduction to ethylene. Chemosphere, 248, [125993]. (doi:10.1016/j.chemosphere.2020.125993).

Record type: Article

Abstract

CO2 reduction offers an attractive alternative green synthetic route for ethylene, especially where CO2 could be sourced from industrial exhausts and in combination with green power sources. However, practical applications are currently limited due to the unfortunately low selectivity of cathode materials towards ethylene. This work uses polymers with intrinsic microporosity (PIMs) to improve the performance of copper gas diffusion electrodes for CO2 reduction to ethylene. We report an improved selectivity and activity towards ethylene with the addition of a thin PIMs layer, which is seen as improved Faradaic efficiency, increased stability and a shift in the reduction to lower overpotential. This improvement is highly dependent on the thickness of the added polymer layer, with too thick a layer having a detrimental impact on the hydrophobicity of the gas diffusion layer. With a compromise in loading, PIMs can be used to enhance the activity and selectivity of catalysts for targeted CO2 reduction to ethylene.

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Polymers with Intrinsic Microporosity (PIMs) for targeted CO2 reduction to ethylene - Accepted Manuscript
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Polymers with Intrinsic Microporosity (PIMs) for targeted CO2 reduction to ethylene - Accepted Manuscript
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Accepted/In Press date: 20 January 2020
e-pub ahead of print date: 21 January 2020
Published date: June 2020
Keywords: Carbon dioxide, electrochemistry, ethylene, gas diffusion electrode, triphasic interface, with intrinsic microporosity

Identifiers

Local EPrints ID: 437641
URI: http://eprints.soton.ac.uk/id/eprint/437641
ISSN: 0045-6535
PURE UUID: 5cdd759c-0f1d-40c0-9f9f-b878144d179c
ORCID for Ling Wang: ORCID iD orcid.org/0000-0002-2894-6784
ORCID for Carlos Ponce De Leon Albarran: ORCID iD orcid.org/0000-0002-1907-5913

Catalogue record

Date deposited: 07 Feb 2020 17:32
Last modified: 26 Nov 2021 06:15

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Contributors

Author: Samuel Perry
Author: Samantha Gateman
Author: Richard Malpass-Evansc
Author: Neil McKeown
Author: Moritz Wegener
Author: Pāvels Nazarovs
Author: Janine Mauzeroll
Author: Ling Wang ORCID iD

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