Highly Durable Nanoporous Cu2–xS Films for Efficient Hydrogen Evolution Electrocatalysis under Mild pH Conditions
Impacto
Scholar |
Otros documentos de la autoría: Fernandez-Climent, Roser; Redondo, Jesús; García-Tecedor, Miguel; Spadaro, Maria Chiara; Li, Junnan; Chartrand, Daniel; Schiller, Frederik; Pazos, Jhon; Hurtado, Mikel F.; de la Peña O'Shea, Víctor Antonio; Kornienko, Nikolay; Arbiol, Jordi; Barja, Sara; Mesa, Camilo A.; Giménez Juliá, Sixto
Metadatos
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INVESTIGACIONMetadatos
Título
Highly Durable Nanoporous Cu2–xS Films for Efficient Hydrogen Evolution Electrocatalysis under Mild pH ConditionsAutoría
Fecha de publicación
2023-08-04Editor
American Chemical SocietyISSN
2155-5435Cita bibliográfica
Fernández-Climent R.; Redondo J.; García-Tecedor M.; Spadaro M. C.; Li J.; Chartrand D.; Schiller F.; Pazos J.; Hurtado M. F.; de la Peña O'Shea V.; Kornienko N.; Arbiol J.; Barja S.; Mesa C. A.; Giménez S. Highly Durable Nanoporous Cu2–xS Films for Efficient Hydrogen Evolution Electrocatalysis under Mild pH Conditions. ACS Catal. 2023, 13, 15, 10457-1046. DOI: 10.1021/acscatal.3c01673Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://pubs.acs.org/doi/full/10.1021/acscatal.3c01673Versión
info:eu-repo/semantics/publishedVersionPalabras clave / Materias
Resumen
Copper-based hydrogen evolution electrocatalysts are promising materials to scale-up hydrogen production due to their reported high current densities; however, electrode durability remains a challenge. Here, we report ... [+]
Copper-based hydrogen evolution electrocatalysts are promising materials to scale-up hydrogen production due to their reported high current densities; however, electrode durability remains a challenge. Here, we report a facile, cost-effective, and scalable synthetic route to produce Cu2–xS electrocatalysts, exhibiting hydrogen evolution rates that increase for ∼1 month of operation. Our Cu2–xS electrodes reach a state-of-the-art performance of ∼400 mA cm–2 at −1 V vs RHE under mild conditions (pH 8.6), with almost 100% Faradaic efficiency for hydrogen evolution. The rise in current density was found to scale with the electrode electrochemically active surface area. The increased performance of our Cu2–xS electrodes correlates with a decrease in the Tafel slope, while analyses by X-ray photoemission spectroscopy, operando X-ray diffraction, and in situ spectroelectrochemistry cooperatively revealed the Cu-centered nature of the catalytically active species. These results allowed us to increase fundamental understanding of heterogeneous electrocatalyst transformation and consequent structure–activity relationship. This facile synthesis of highly durable and efficient Cu2–xS electrocatalysts enables the development of competitive electrodes for hydrogen evolution under mild pH conditions. [-]
Publicado en
ACS catalysis, 2023, vol. 13, no 15Entidad financiadora
Generalitat de Catalunya | Ministerio de Ciencia e Innovación | European Union NextGenerationEU | Basque Government | Ministerio de Ciencia, Innovación y Universidades | Univesitat Jaume I | Generalitat Valenciana | Ministerio de Ciencia Tecnología e Innovación (Colombia) | UPV/EHU | Czech Science Foundation
Identificador de la entidad financiadora
http://dx.doi.org/10.13039/501100011033
Código del proyecto o subvención
2021SGR00457 | PRTR-C17.I1 | IT1591-22 | MCIN/PEICTI2021-2023/RED2022-134508-T | MICIU/ICTI2017-2020/PID2020-116093RB-C41 | MICIU/ICTI2017-2020/PID2020-116093RB-C43 | MICIU/ICTI2017-2020/PID2020-116093RB-C44 | POSDOC/2019/20 | APOSTD/2021/251 | 848-2019 | CEX2021-001214-S | JCI-2019 | RYC-2017-21931 | EUR2020-112066 | EHUrOPE19/01 | 22-18079O
Título del proyecto o subvención
Desarrollo de sistemas electrocatalíticos integrados para la síntesis de productos químicos de alto valor añadido | Nanoscopias electrónicas avanzadas aplicadas a la investigación y mejora de electrocatalíticos para la generación de combustibles sostenibles y productos de alto valor añadido | Estudio de las relaciones estructura-función en catalizador modelo para la generación limpia de productos químicos de alto valor añadido
Derechos de acceso
info:eu-repo/semantics/openAccess
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