Articles producció científica> Química Física i Inorgànica

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

  • Datos identificativos

    Identificador: imarina:9294211
    Autores:
    Miro, RGuzman, HGodard, CGual, AZammillo, FSchubert, TJSIliev, BChiodoni, AHernandez, Sde los Bernardos, MD
    Resumen:
    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.
  • Otros:

    Autor según el artículo: Miro, R; Guzman, H; Godard, C; Gual, A; Zammillo, F; Schubert, TJS; Iliev, B; Chiodoni, A; Hernandez, S; de los Bernardos, MD
    Departamento: Química Física i Inorgànica
    Autor/es de la URV: Godard, Cyril
    Palabras clave: Systems Semiconductor Cugao2 Conversion Behavior
    Resumen: 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.
    Áreas temáticas: 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
    Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
    Direcció de correo del autor: cyril.godard@urv.cat
    Identificador del autor: 0000-0001-5762-4904
    Fecha de alta del registro: 2024-08-03
    Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
    Enlace a la fuente original: https://pubs.rsc.org/en/content/articlelanding/2023/cy/d2cy01523d
    URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
    Referencia al articulo segun fuente origial: Catalysis Science & Technology. 13 (6): 1708-1717
    Referencia de l'ítem segons les normes 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
    DOI del artículo: 10.1039/d2cy01523d
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2023
    Tipo de publicación: Journal Publications
  • Palabras clave:

    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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