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