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Title:Comparative study of different polymeric binders in electrochemical CO reduction
Authors:ID Galbicsek, Noémi V. (Author)
ID Kormányos, Attila (Author)
ID Samu, Gergely Ferenc (Author)
ID Ayyub, Mohd M. (Author)
ID Kotnik, Tomaž (Author)
ID Kovačič, Sebastijan (Author)
ID Janáky, Csaba (Author)
ID Endrődi, Balázs (Author)
Files:.pdf galbicsek-et-al-2024-comparative-study-of-different-polymeric-binders-in-electrochemical-co-reduction.pdf (3,55 MB)
MD5: 1102F2B65DBD40E38066518A9A6E8BBB
 
Language:English
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Electrochemical reduction of carbon monoxide offers a possible route to produce valuable chemicals (such as acetate, ethanol or ethylene) from CO2 in two consecutive electrochemical reactions. Such deeply reduced products are formed via the transfer of 4–6 electrons per CO molecule. Assuming similar-sized CO2 and CO electrolyzers, 2–3-times larger current densities are required in the latter case to match the molar fluxes. Such high reaction rates can be ensured by tailoring the structure of the gas diffusion electrodes. Here, the structure of the cathode catalyst layer was systematically varied using different polymeric binders to achieve high reaction rates. Simple linear polymers, bearing the same backbone but different functional groups were compared to highlight the role of different structural motifs. The comparison was also extended to simple linear, partially fluorinated polymers. Interestingly, in some cases similar results were obtained as with the current state-of-the-art binders. Using different surface-wetting characterization techniques, we show that the hydrophobicity of the catalyst layer─provided by the binder─ is a prerequisite for high-rate CO electrolysis. The validity of this notion was demonstrated by performing CO electrolysis experiments at high current density (1 A cm–2) for several hours using PVDF as the catalyst binder.
Keywords:electrochemical CO reduction, polymeric binders, carbon monoxide
Publication status:Published
Publication version:Version of Record
Submitted for review:22.10.2024
Article acceptance date:23.10.2024
Publication date:05.11.2024
Publisher:ACS Publications
Year of publishing:2024
Number of pages:str. 22307–22314
Numbering:Vol. 38, iss. 22
PID:20.500.12556/DKUM-91775 New window
UDC:544.5/.6
ISSN on article:1520-5029
COBISS.SI-ID:217480195 New window
DOI:10.1021/acs.energyfuels.4c04058 New window
Copyright:© 2024 The Authors
Publication date in DKUM:04.02.2025
Views:0
Downloads:5
Metadata:XML DC-XML DC-RDF
Categories:Misc.
:
GALBICSEK, Noémi V., KORMÁNYOS, Attila, SAMU, Gergely Ferenc, AYYUB, Mohd M., KOTNIK, Tomaž, KOVAČIČ, Sebastijan, JANÁKY, Csaba and ENDRŐDI, Balázs, 2024, Comparative study of different polymeric binders in electrochemical CO reduction. Energy & fuels [online]. 2024. Vol. 38, no. 22. [Accessed 22 April 2025]. DOI 10.1021/acs.energyfuels.4c04058. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=91775
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Record is a part of a journal

Title:Energy & fuels
Shortened title:Energy fuels
Publisher:American Chemical Society
ISSN:1520-5029
COBISS.SI-ID:3420954 New window

Document is financed by a project

Funder:Other - Other funder or multiple funders
Project number:GINOP-2.3.2-15-2016-0001
Name:Intelligent materials based on functional surfaces−from syntheses to applications
Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P2-0150-2020
Name:Integralni pristop k preprečevanju onesnaževanja voda
Funder:ARIS - Slovenian Research and Innovation Agency
Project number:N2-0340-2024
Name:Funkcionalni polimeri za aplikacije v elektrokatalizi
Funder:EC - European Commission
Project number:862453
Name:Heterogenous Photo(electro)catalysis in Flow using Concentrated Light: modular integrated designs for the production of useful chemicals
Acronym:FlowPhotoChem

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:Slovenian
Keywords:elektrokemijska redukcija CO, polimerna veziva, ogljikov dioksid


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