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Gas diffusion electrodes (GDEs) for electrochemical reduction of carbon dioxide, carbon monoxide, and dinitrogen to value-added products: a review
Electrochemical reduction of gaseous feeds such as CO 2 , CO, and N 2 holds promise for sustainable energy and chemical production. Practical application of this technology is impeded by slow mass transport of the sparingly soluble gases to conventional planar electrodes. Gas diffusion electrodes (G...
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| Published in: | Energy & environmental science 2021-04, Vol.14 (4), p.1959-28 |
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| Main Authors: | , , , , , |
| Format: | Article |
| Language: | English |
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| cited_by | cdi_FETCH-LOGICAL-c359t-b87a53f25bbf26e33962ee6e6ac47ecff9229256a408810b5df8a584c0bacb5d3 |
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| cites | cdi_FETCH-LOGICAL-c359t-b87a53f25bbf26e33962ee6e6ac47ecff9229256a408810b5df8a584c0bacb5d3 |
| container_end_page | 28 |
| container_issue | 4 |
| container_start_page | 1959 |
| container_title | Energy & environmental science |
| container_volume | 14 |
| creator | Rabiee, Hesamoddin Ge, Lei Zhang, Xueqin Hu, Shihu Li, Mengran Yuan, Zhiguo |
| description | Electrochemical reduction of gaseous feeds such as CO
2
, CO, and N
2
holds promise for sustainable energy and chemical production. Practical application of this technology is impeded by slow mass transport of the sparingly soluble gases to conventional planar electrodes. Gas diffusion electrodes (GDEs) maintain a high gas concentration in the vicinity of the catalyst and improve mass transport, thereby resulting in current densities higher by orders of magnitude. However, gaseous feeds cause changes to the GDE environment, and specific features are required to efficiently tune the product selectivity and improve reaction stability. Herein, with a comprehensive review of the challenges and advances in GDE development for various electrocatalytic reactions, we intend to complement the body of material-focused reviews. This review outlines GDE fundamentals and highlights key advantages of GDE over conventional electrodes. Through critical discussion about steps in GDE fabrication, and specific shortcomings and remedial strategies for various electrochemical applications, this review discusses connections, unique design criteria, and potential opportunities for gas-fed reactions and desired products. Finally, priorities for future studies are suggested, to support the advancement and scale-up of GDE-based electrochemical technologies.
Opportunities, challenges and design criteria associated with Gas diffusion electrodes (GDEs) for various electrochemical applications. |
| doi_str_mv | 10.1039/d0ee03756g |
| format | article |
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2
, CO, and N
2
holds promise for sustainable energy and chemical production. Practical application of this technology is impeded by slow mass transport of the sparingly soluble gases to conventional planar electrodes. Gas diffusion electrodes (GDEs) maintain a high gas concentration in the vicinity of the catalyst and improve mass transport, thereby resulting in current densities higher by orders of magnitude. However, gaseous feeds cause changes to the GDE environment, and specific features are required to efficiently tune the product selectivity and improve reaction stability. Herein, with a comprehensive review of the challenges and advances in GDE development for various electrocatalytic reactions, we intend to complement the body of material-focused reviews. This review outlines GDE fundamentals and highlights key advantages of GDE over conventional electrodes. Through critical discussion about steps in GDE fabrication, and specific shortcomings and remedial strategies for various electrochemical applications, this review discusses connections, unique design criteria, and potential opportunities for gas-fed reactions and desired products. Finally, priorities for future studies are suggested, to support the advancement and scale-up of GDE-based electrochemical technologies.
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2
, CO, and N
2
holds promise for sustainable energy and chemical production. Practical application of this technology is impeded by slow mass transport of the sparingly soluble gases to conventional planar electrodes. Gas diffusion electrodes (GDEs) maintain a high gas concentration in the vicinity of the catalyst and improve mass transport, thereby resulting in current densities higher by orders of magnitude. However, gaseous feeds cause changes to the GDE environment, and specific features are required to efficiently tune the product selectivity and improve reaction stability. Herein, with a comprehensive review of the challenges and advances in GDE development for various electrocatalytic reactions, we intend to complement the body of material-focused reviews. This review outlines GDE fundamentals and highlights key advantages of GDE over conventional electrodes. Through critical discussion about steps in GDE fabrication, and specific shortcomings and remedial strategies for various electrochemical applications, this review discusses connections, unique design criteria, and potential opportunities for gas-fed reactions and desired products. Finally, priorities for future studies are suggested, to support the advancement and scale-up of GDE-based electrochemical technologies.
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2
, CO, and N
2
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| ispartof | Energy & environmental science, 2021-04, Vol.14 (4), p.1959-28 |
| issn | 1754-5692 1754-5706 |
| language | eng |
| recordid | cdi_proquest_journals_2515760899 |
| source | Royal Society of Chemistry:Jisc Collections:Royal Society of Chemistry Read and Publish 2022-2024 (reading list) |
| subjects | Carbon dioxide Carbon monoxide Catalysts Chemical reduction Design criteria Diffusion electrodes Electrochemistry Electrodes Fabrication Gaseous diffusion Gases Mass transport Renewable energy Reviews Selectivity Sustainability |
| title | Gas diffusion electrodes (GDEs) for electrochemical reduction of carbon dioxide, carbon monoxide, and dinitrogen to value-added products: a review |
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