Articles producció científica> Química Física i Inorgànica

Solar-driven CO2 reduction catalysed by hybrid supramolecular photocathodes and enhanced by ionic liquids

  • Identification data

    Identifier: imarina:9294211
    Authors:
    Miro, RGuzman, HGodard, CGual, AZammillo, FSchubert, TJSIliev, BChiodoni, AHernandez, Sde los Bernardos, MD
    Abstract:
    Photoelectrochemical carbon dioxide reduction (CO2) at ambient temperature and pressure was performed using molecular chromophores and catalyst assemblies on CuGaO2-based electrodes in an ionic liquid (IL) organic solution, acting as a CO2 absorbent and electrolyte. A simple and versatile methodology based on the silanization of the CuGaO2 electrode followed by electropolymerization provided a series of molecular and supramolecular hybrid photocathodes for solar driven CO2 reduction. Focusing on the cathodic half reactions, the most promising conditions for the formation of CO2 reduction products were determined. The results revealed a beneficial effect of the ionic liquid on the conversion of CO2 to formic acid and suppression of the production of hydrogen. The potentiality of anchoring supramolecular complexes on semiconductor photoelectrocatalysts was demonstrated to boost both carrier transport and catalytic activity with a FEred of up to 81% compared with the obtained FEred of 52% using bare CuGaO2 with formate as the major product.
  • Others:

    Author, as appears in the article.: Miro, R; Guzman, H; Godard, C; Gual, A; Zammillo, F; Schubert, TJS; Iliev, B; Chiodoni, A; Hernandez, S; de los Bernardos, MD
    Department: Química Física i Inorgànica
    URV's Author/s: Godard, Cyril
    Keywords: Systems Semiconductor Cugao2 Conversion Behavior
    Abstract: Photoelectrochemical carbon dioxide reduction (CO2) at ambient temperature and pressure was performed using molecular chromophores and catalyst assemblies on CuGaO2-based electrodes in an ionic liquid (IL) organic solution, acting as a CO2 absorbent and electrolyte. A simple and versatile methodology based on the silanization of the CuGaO2 electrode followed by electropolymerization provided a series of molecular and supramolecular hybrid photocathodes for solar driven CO2 reduction. Focusing on the cathodic half reactions, the most promising conditions for the formation of CO2 reduction products were determined. The results revealed a beneficial effect of the ionic liquid on the conversion of CO2 to formic acid and suppression of the production of hydrogen. The potentiality of anchoring supramolecular complexes on semiconductor photoelectrocatalysts was demonstrated to boost both carrier transport and catalytic activity with a FEred of up to 81% compared with the obtained FEred of 52% using bare CuGaO2 with formate as the major product.
    Thematic Areas: Química Materiais Farmacia Engenharias ii Engenharias i Ciências biológicas ii Ciências biológicas i Ciências agrárias i Ciência de alimentos Chemistry, physical Catalysis Biotecnología Astronomia / física
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    Author's mail: cyril.godard@urv.cat
    Author identifier: 0000-0001-5762-4904
    Record's date: 2024-08-03
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://pubs.rsc.org/en/content/articlelanding/2023/cy/d2cy01523d
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Catalysis Science & Technology. 13 (6): 1708-1717
    APA: Miro, R; Guzman, H; Godard, C; Gual, A; Zammillo, F; Schubert, TJS; Iliev, B; Chiodoni, A; Hernandez, S; de los Bernardos, MD (2023). Solar-driven CO2 reduction catalysed by hybrid supramolecular photocathodes and enhanced by ionic liquids. Catalysis Science & Technology, 13(6), 1708-1717. DOI: 10.1039/d2cy01523d
    Article's DOI: 10.1039/d2cy01523d
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2023
    Publication Type: Journal Publications
  • Keywords:

    Catalysis,Chemistry, Physical
    Systems
    Semiconductor
    Cugao2
    Conversion
    Behavior
    Química
    Materiais
    Farmacia
    Engenharias ii
    Engenharias i
    Ciências biológicas ii
    Ciências biológicas i
    Ciências agrárias i
    Ciência de alimentos
    Chemistry, physical
    Catalysis
    Biotecnología
    Astronomia / física
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