CO2 Electrochemical Reduction with Zn-Al Layered Double Hydroxide-Loaded Gas-Diffusion Electrode

Ryosuke NAKAZATO; Keeko MATSUMOTO; Noboru YAMAGUCHI; Margherita CAVALLO; Valentina CROCELLÀ; Francesca BONINO; Matthias QUINTELIER; Joke HADERMANN; Nataly Carolina ROSERO-NAVARRO; Akira MIURA; Kiyoharu TADANAGA

doi:10.5796/electrochemistry.23-00080

Articles

CO₂ Electrochemical Reduction with Zn-Al Layered Double Hydroxide-Loaded Gas-Diffusion Electrode

Ryosuke NAKAZATO , Keeko MATSUMOTO, Noboru YAMAGUCHI, Margherita CAVALLO, Valentina CROCELLÀ, Francesca BONINO, Matthias QUINTELIER, Joke HADERMANN, Nataly Carolina ROSERO-NAVARRO, Akira MIURA, Kiyoharu TADANAGA

Author information

Ryosuke NAKAZATO Corresponding author
https://orcid.org/0009-0008-8544-8053
Faculty, Graduate School and School of Engineering, Hokkaido University
Keeko MATSUMOTO
Faculty, Graduate School and School of Engineering, Hokkaido University
Noboru YAMAGUCHI
Faculty, Graduate School and School of Engineering, Hokkaido University
Margherita CAVALLO
Department of Chemistry, NIS and INSTM Reference Centers, University of Turin
Valentina CROCELLÀ
https://orcid.org/0000-0002-3606-8424
Department of Chemistry, NIS and INSTM Reference Centers, University of Turin
Francesca BONINO
https://orcid.org/0000-0002-6822-6685
Department of Chemistry, NIS and INSTM Reference Centers, University of Turin
Matthias QUINTELIER
EMAT, Department of Physics, University of Antwerp
Joke HADERMANN
https://orcid.org/0000-0002-1756-2566
EMAT, Department of Physics, University of Antwerp
Nataly Carolina ROSERO-NAVARRO
https://orcid.org/0000-0001-6838-2875
Faculty, Graduate School and School of Engineering, Hokkaido University
Instituto de Cerámica y Vidrio, CSIC
Akira MIURA
https://orcid.org/0000-0003-0388-9696
Faculty, Graduate School and School of Engineering, Hokkaido University
Kiyoharu TADANAGA Corresponding author
https://orcid.org/0000-0002-3319-4353
Faculty, Graduate School and School of Engineering, Hokkaido University

Keywords: CO₂ Electrochemical Reduction, CO Formation, Layered Double Hydroxide, Gas-diffusion Electrode

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2023 Volume 91 Issue 9 Pages 097003

DOI https://doi.org/10.5796/electrochemistry.23-00080

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Abstract

Carbon dioxide electrochemical reduction (CO₂ER) has attracted considerable attention as a technology to recycle CO₂ into raw materials for chemicals using renewable energies. We recently found that Zn-Al layered double hydroxides (Zn-Al LDH) have the CO-forming CO₂ER activity. However, the activity was only evaluated by using the liquid-phase CO₂ER. In this study, Ni-Al and Ni-Fe LDHs as well as Zn-Al LDH were synthesized using a facile coprecipitation process and the gas-phase CO₂ER with the LDH-loaded gas-diffusion electrode (GDE) was examined. The products were characterized by XRD, STEM-EDX, BF-TEM and ATR-IR spectroscopy. In the ATR-IR results, the interaction of CO₂ with Zn-Al LDH showed a different carbonates evolution with respect to other LDHs, suggesting a different electrocatalytic activity. The LDH-loaded GDE was prepared by simple drop-casting of a catalyst ink onto carbon paper. For gas-phase CO₂ER, only Zn-Al LDH exhibited the CO₂ER activity for carbon monoxide (CO) formation. By using different potassium salt electrolytes affording neutral to strongly basic conditions, such as KCl, KHCO₃ and KOH, the gas-phase CO₂ER with Zn-Al LDH-loaded GDE showed 1.3 to 2.1 times higher partial current density for CO formation than the liquid-phase CO₂ER.

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1.Fund name: EU HORIZON 2020

2.Fund name: Japan Science and Technology Corporation

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