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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Johnston, Andrew
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2022High-Throughput Evaluation of Emission and Structure in Reduced-Dimensional Perovskites.citations
- 2022High-Rate and Selective CO2 Electrolysis to Ethylene via Metal–Organic-Framework-Augmented CO2 Availabilitycitations
- 2012Processing and properties of PEEK/glass fiber laminates: Effect of addition of single-walled carbon nanotubescitations
- 2011Toughening of epoxy matrices with reduced single-walled carbon nanotubescitations
- 2011Solvent-free preparation of high-toughness epoxy−SWNT composite materialscitations
- 2011Influence of carbon nanotubes on the thermal, electrical and mechanical properties of poly(ether ether ketone)/glass fiber laminatescitations
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article
High-Rate and Selective CO2 Electrolysis to Ethylene via Metal–Organic-Framework-Augmented CO2 Availability
Abstract
High-rate conversion of carbon dioxide (CO<sub>2</sub>) to ethylene (C<sub>2</sub>H<sub>4</sub>) in the CO<sub>2</sub> reduction reaction (CO<sub>2</sub>RR) requires fine control over the phase boundary of the gas diffusion electrode (GDE) to overcome the limit of CO<sub>2</sub> solubility in aqueous electrolytes. Here, a metal–organic framework (MOF)-functionalized GDE design is presented, based on a catalysts:MOFs:hydrophobic substrate materials layered architecture, that leads to high-rate and selective C<sub>2</sub>H<sub>4</sub> production in flow cells and membrane electrode assembly (MEA) electrolyzers. It is found that using electroanalysis and operando X-ray absorption spectroscopy (XAS), MOF-induced organic layers in GDEs augment the local CO<sub>2</sub> concentration near the active sites of the Cu catalysts. MOFs with different CO<sub>2</sub> adsorption abilities are used, and the stacking ordering of MOFs in the GDE is varied. While sputtering Cu on poly(tetrafluoroethylene) (PTFE) (Cu/PTFE) exhibits 43% C<sub>2</sub>H<sub>4</sub> Faradaic efficiency (FE) at a current density of 200 mA cm<sup>−</sup><sup>2</sup> in a flow cell, 49% C<sub>2</sub>H<sub>4</sub> FE at 1 A cm<sup>−</sup><sup>2</sup> is achieved on MOF-augmented GDEs in CO<sub>2</sub>RR. MOF-augmented GDEs are further evaluated in an MEA electrolyzer, achieving a C<sub>2</sub>H<sub>4</sub> partial current density of 220 mA cm<sup>−2</sup> for CO<sub>2</sub>RR and 121 mA cm<sup>−2</sup> for the carbon monoxide reduction reaction (CORR), representing 2.7-fold and 15-fold improvement in C<sub>2</sub>H<sub>4</sub> production rate, compared to those obtained on bare Cu/PTFE.