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, Polymers with intrinsic microporosity, Triphasic interface
Perry, Samuel
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Gateman, Samantha
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Malpass-Evansc, Richard
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McKeown, Neil
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Wegener, Moritz
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Nazarovs, Pāvels
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Mauzeroll, Janine
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Wang, Ling
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Ponce De Leon Albarran, Carlos
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June 2020
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).
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.
Text
Polymers with Intrinsic Microporosity (PIMs) for targeted CO2 reduction to ethylene
- Accepted Manuscript
Text
Polymers with Intrinsic Microporosity (PIMs) for targeted CO2 reduction to ethylene
- Accepted Manuscript
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More information
Accepted/In Press date: 20 January 2020
e-pub ahead of print date: 21 January 2020
Published date: June 2020
Additional Information:
Funding Information:
This work is supported as part of the CO 2 -based electrosynthesis of ethylene oxide (CO2EXIDE) project, which receives funding from the European Union’s Horizon 2020 research and innovation programme in co-operation with the sustainable process industry through resource and energy efficiency (SPIRE) initiative under grant agreement no. 768789 .
Publisher Copyright:
© 2020 Elsevier Ltd
Keywords:
Carbon dioxide, Electrochemistry, Ethylene, Gas diffusion electrode, Polymers with intrinsic microporosity, Triphasic interface
Identifiers
Local EPrints ID: 437641
URI: http://eprints.soton.ac.uk/id/eprint/437641
ISSN: 0045-6535
PURE UUID: 5cdd759c-0f1d-40c0-9f9f-b878144d179c
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Date deposited: 07 Feb 2020 17:32
Last modified: 06 Jun 2024 04:16
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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
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