Diaz de los Bernardos, Miriam

Guzman, Hilmar

Hernandez, Simelys

Lopera, Alberto

Lopez-Tedero, Mariajose

Miro, Roger

Parisi, Emmanuele

Pavan, Giovanni Maria

Polino, Daniela

Simone, Elena

Zammillo, Federica

English

PORTO@iris (Publications Open Repository TOrino - Politecnico di Torino)

17 October 2023POLITECNICO DI TORINORepository ISTITUZIONALEAddressing the stability challenges of Gas Diffusion Electrodes in the presence of ILs-based solutions for the continuousElectrochemical Conversion of CO2 / Zammillo, Federica; Guzman, Hilmar; Polino, Daniela; Miro, Roger; Lopera,Alberto; Parisi, Emmanuele; Simone, Elena; Lopez-Tedero, Mariajose; Diaz de los Bernardos, Miriam; Pavan, GiovanniMaria; Hernandez, Simelys. - (2023). (Intervento presentato al convegno Conference on Artificial Photosynthesis andGreen Catalysis 2023 tenutosi a Losanna nel 17-19 Luglio 2023).OriginalAddressing the stability challenges of Gas Diffusion Electrodes in the presence of ILs-based solutionsfor the continuous Electrochemical Conversion of CO2Publisher:PublishedDOI:Terms of use:Publisher copyright(Article begins on next page)This article is made available under terms and conditions as specified in the  corresponding bibliographic description inthe repositoryAvailability:This version is available at: 11583/2982049 since: 2023-09-12T14:57:43ZAddressing the stability challenges of Gas Diffusion Electrodes in the presence of ILs-based solutions for the continuous Electrochemical Conversion of CO2   Federica Zammillo,a,† Hilmar Guzmán,a,† Daniela Polino,b Roger Miró,c Alberto Lopera,d Emmanuele Parisi,a Elena Simone,a Mariajose López-Tendero,d Miriam Díaz de los Bernardos,c Giovanni Maria Pavan,a,b Simelys Hernández a,e,* a Department of Applied Science and Technology (DISAT), Politecnico di Torino, C.so Duca degli Abruzzi, 24, 10129, Turin, Italy. federica.zammillo@polito.it; hilmar.guzman@polito.it; emmanuele.parisi@polito.it; elena.simone@polito.it b Department of Innovative Technologies, University of Applied Sciences and Arts of Southern Switzerland, Polo Universitario Lugano, Campus Est, Viala Santa 1, 6962, Lugano-Viganello, Switzerland. daniela.polino@supsi.ch; giovanni.pavan@supsi.ch c Unitat de Tecnologies Químiques, Fundació Eurecat - Centre Tecnològic de Catalunya, Tarragona, 43007, Spain. roger.miro@eurecat.org; miriam.diaz@eurecat.org d Laurentia Technologies, Parque Tecnologico, Valencia, 46980, Spain. alberto.lopera@laurentia.es; mlopezt@laurentia.es e Clean Water Center (CWC) Politecnico di Torino, C.so Duca degli Abruzzi, 24, 10129, Turin, Italy.  e-mail: federica.zammillo@polito.it; simelys.hernandez@polito.it  In the context of sustainable strategies proposed to convert CO2 to valuable products, the electrochemical reduction of CO2 (ECR-CO2) represents one of the most promising alternatives1. Herein, the ECR-CO2 has been carried out for the first-time employing synthesised core-shell Cu2O/SnO2-based nanoparticles within a continuous flow cell and in the presence of ionic liquids (ILs), which have been known to boost CO2-derived products2. The stability issues faced during operations at 10 cm2 scale, visualized in the darkening of the gas diffusion electrodes and in colour changes of the electrolyte, will be discussed. Raman spectroscopy, Field Emission Scanning Electron Microscopy and Electrochemical Impedance Spectroscopy techniques have been employed for the physicochemical characterization of the electrodes and to assess the evolution of the electrochemical interfaces within the system over time. Interestingly, in aqueous electrolyte, the synthesised material demonstrated a stable syngas production at -20 mA cm-2, with a CO/H2 ratio of about 10. Furthermore, we observed that the immobilization of ruthenium and rhenium complexes on the catalyst can be crucial to determine its suitability for either the hydroformylation or the carbonylation reaction, making this technology a promising solution for the green transition of the chemical industry in Europe.   Acknowledgments  The financial support of the SUNCOCHEM project (Grant Agreement No 862192) of the European Union’s Horizon 2020 Research and Innovation Action programme and of Fondazione CRT are acknowledged.  References 1. IEA. Global Energy Review: CO2 Emissions in 2021. (2021). 2. Kunene, T., Atifi, A. & Rosenthal, J. Selective CO2 Reduction over Rose’s Metal in the Presence of an Imidazolium Ionic Liquid Electrolyte. ACS Appl. Energy Mater. 3, 4193–4200 (2020).  

Addressing the stability challenges of Gas Diffusion Electrodes in the presence of ILs-based solutions for the continuous Electrochemical Conversion of CO2

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Addressing the stability challenges of Gas Diffusion Electrodes in the presence of ILs-based solutions for the continuous Electrochemical Conversion of CO2

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