Zinc Doping Enhances the Electrocatalytic Properties of Cobalt Borides for the Hydrogen Evolution Reaction

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Título: Zinc Doping Enhances the Electrocatalytic Properties of Cobalt Borides for the Hydrogen Evolution Reaction
Autor/es: Quílez-Bermejo, Javier | García-Dalí, Sergio | Karthik, Raj | Canevesi, Rafael L.S. | Izquierdo, María T. | Emo, Mélanie | Celzard, Alain | Fierro, Vanessa
Grupo/s de investigación o GITE: Materiales Carbonosos y Medio Ambiente
Centro, Departamento o Servicio: Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales
Palabras clave: Zn doping | Cobalt borides | HER | Water splitting | Electrolyzer
Área/s de conocimiento: Química Inorgánica
Fecha de publicación: 12-may-2022
Editor: Frontiers Media
Cita bibliográfica: Quílez-Bermejo J, García-Dalí S, Karthik R, Canevesi R, Izquierdo MT, Emo M, Celzard A and Fierro V (2022) Zinc Doping Enhances the Electrocatalytic Properties of Cobalt Borides for the Hydrogen Evolution Reaction. Front. Energy Res. 10:901395. doi: 10.3389/fenrg.2022.901395
Resumen: Electrochemical water splitting requires new, low-cost cathode electrodes for the hydrogen evolution reaction to enable the worldwide implementation of electrolyzers. Cobalt borides are proposed as one of the most promising materials to overcome the limitations of the commercial electrocatalysts, but the catalytic activity still needs to be improved to be competitive. Here, we report that the introduction of zinc into cobalt boride to produce a ternary cobalt boride is an efficient route to further improve the catalytic activity towards the hydrogen evolution reaction (HER) of cobalt boride. The ternary Co-Zn-B was prepared by an easy chemical reduction method to achieve superior HER electrocatalytic performance with a lower overpotential than the homologous Co-B. The larger surface area, structural order, crystallization degree and, in particular, the different surface chemistry seem to be key factors for this improvement.
Patrocinador/es: This study was partly supported by the French PIA project “Lorraine Université d’Excellence,” reference ANR-15-IDEX-04-LUE and the TALiSMAN project funded by ERDF (2019-000214).
URI: http://hdl.handle.net/10045/123556
ISSN: 2296-598X
DOI: 10.3389/fenrg.2022.901395
Idioma: eng
Tipo: info:eu-repo/semantics/article
Derechos: © 2022 Quílez-Bermejo, García-Dalí, Karthik, Canevesi, Izquierdo, Emo, Celzard and Fierro. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Revisión científica: si
Versión del editor: https://doi.org/10.3389/fenrg.2022.901395
Aparece en las colecciones:INV - MCMA - Artículos de Revistas

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