Simulation‐based guidance for improving CO2${ m CO}_{2}$ reduction on silver gas diffusion electrodes
Abstract The reduction of CO2${ m CO}_{2}$ in an electrochemical reactor using electrical energy is a promising approach to implement a more sustainable carbon economy and to replace fossil fuels with renewable carbon sources. Conventionally used solid plate electrodes are limited by poor mass trans...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley-VCH
2023-02-01
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| Series: | Electrochemical Science Advances |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/elsa.202100160 |
| _version_ | 1811165334200123392 |
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| author | Matthias Heßelmann Berinike Clara Bräsel Robert Gregor Keller Matthias Wessling |
| author_facet | Matthias Heßelmann Berinike Clara Bräsel Robert Gregor Keller Matthias Wessling |
| author_sort | Matthias Heßelmann |
| collection | DOAJ |
| description | Abstract The reduction of CO2${
m CO}_{2}$ in an electrochemical reactor using electrical energy is a promising approach to implement a more sustainable carbon economy and to replace fossil fuels with renewable carbon sources. Conventionally used solid plate electrodes are limited by poor mass transport of the reactants. Gas diffusion electrodes (GDEs) can overcome this limitation and have gained industrial relevance during the last decades. A comprehensive understanding of transport and conversion phenomena within such porous electrodes is not yet well developed. Here, we report a one‐dimensional steady state model of the GDE to investigate the influence of relevant operational parameters and GDE properties on CO2${
m CO}_{2}$ reduction. The results indicate the importance of controlling the local reaction environment, that is, the reactant concentration and the pH value, by tuning the electrolyte and gas composition, and flow rate as well as the catalyst layer properties. |
| first_indexed | 2024-04-10T15:36:37Z |
| format | Article |
| id | doaj.art-62a1b3b93dcc41628ceb945493eaa357 |
| institution | Directory Open Access Journal |
| issn | 2698-5977 |
| language | English |
| last_indexed | 2024-04-10T15:36:37Z |
| publishDate | 2023-02-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Electrochemical Science Advances |
| spelling | doaj.art-62a1b3b93dcc41628ceb945493eaa3572023-02-13T05:14:13ZengWiley-VCHElectrochemical Science Advances2698-59772023-02-0131n/an/a10.1002/elsa.202100160Simulation‐based guidance for improving CO2${ m CO}_{2}$ reduction on silver gas diffusion electrodesMatthias Heßelmann0Berinike Clara Bräsel1Robert Gregor Keller2Matthias Wessling3RWTH Aachen University Chemical Process Engineering Forckenbeckstr. 51 Aachen 52074 GermanyRWTH Aachen University Chemical Process Engineering Forckenbeckstr. 51 Aachen 52074 GermanyRWTH Aachen University Chemical Process Engineering Forckenbeckstr. 51 Aachen 52074 GermanyRWTH Aachen University Chemical Process Engineering Forckenbeckstr. 51 Aachen 52074 GermanyAbstract The reduction of CO2${ m CO}_{2}$ in an electrochemical reactor using electrical energy is a promising approach to implement a more sustainable carbon economy and to replace fossil fuels with renewable carbon sources. Conventionally used solid plate electrodes are limited by poor mass transport of the reactants. Gas diffusion electrodes (GDEs) can overcome this limitation and have gained industrial relevance during the last decades. A comprehensive understanding of transport and conversion phenomena within such porous electrodes is not yet well developed. Here, we report a one‐dimensional steady state model of the GDE to investigate the influence of relevant operational parameters and GDE properties on CO2${ m CO}_{2}$ reduction. The results indicate the importance of controlling the local reaction environment, that is, the reactant concentration and the pH value, by tuning the electrolyte and gas composition, and flow rate as well as the catalyst layer properties.https://doi.org/10.1002/elsa.202100160carbon utilizationelectrochemical CO2${ m CO}_{2}$ reductiongas diffusion electrodemodeling |
| spellingShingle | Matthias Heßelmann Berinike Clara Bräsel Robert Gregor Keller Matthias Wessling Simulation‐based guidance for improving CO2${ m CO}_{2}$ reduction on silver gas diffusion electrodes Electrochemical Science Advances carbon utilization electrochemical CO2${ m CO}_{2}$ reduction gas diffusion electrode modeling |
| title | Simulation‐based guidance for improving CO2${
m CO}_{2}$ reduction on silver gas diffusion electrodes |
| title_full | Simulation‐based guidance for improving CO2${
m CO}_{2}$ reduction on silver gas diffusion electrodes |
| title_fullStr | Simulation‐based guidance for improving CO2${
m CO}_{2}$ reduction on silver gas diffusion electrodes |
| title_full_unstemmed | Simulation‐based guidance for improving CO2${
m CO}_{2}$ reduction on silver gas diffusion electrodes |
| title_short | Simulation‐based guidance for improving CO2${
m CO}_{2}$ reduction on silver gas diffusion electrodes |
| title_sort | simulation based guidance for improving co2 m co 2 reduction on silver gas diffusion electrodes |
| topic | carbon utilization electrochemical CO2${ m CO}_{2}$ reduction gas diffusion electrode modeling |
| url | https://doi.org/10.1002/elsa.202100160 |
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