Metal-free borocarbonitrides as electrocatalysts for the hydrogen evolution reaction under alkaline media

This study presents the successful production of metal-free borocarbonitrides (BCN) based on graphene as carbon sources, and its application for hydrogen evolution reaction (HER) in alkaline medium (1 M KOH) via one-step pyrolysis. Synthesis parameters such as the temperature and calcination time we...

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Authors: Cencerrero Fernández del Moral, Javier, Sánchez Paredes, Paula, Lucas Consuegra, Antonio de, Osa Puebla, Ana Raquel de la, Romero Izquierdo, Amaya
Format: article
Publication Date:2025
Country:España
Institution:Universidad de Castilla-La Mancha
Repository:RUIdeRA. Repositorio Institucional de la UCLM
OAI Identifier:oai:ruidera.uclm.es:10578/40484
Online Access:https://doi.org/10.1016/j.jelechem.2024.118856
https://hdl.handle.net/10578/40484
Access Level:Open access
Keyword:Alkaline media
Borocarbonitride
HER
Heteroatom doping
Metal-free
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oai_identifier_str oai:ruidera.uclm.es:10578/40484
network_acronym_str ES
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spelling Metal-free borocarbonitrides as electrocatalysts for the hydrogen evolution reaction under alkaline mediaCencerrero Fernández del Moral, JavierSánchez Paredes, PaulaLucas Consuegra, Antonio deOsa Puebla, Ana Raquel de laRomero Izquierdo, AmayaAlkaline mediaBorocarbonitrideHERHeteroatom dopingMetal-freeThis study presents the successful production of metal-free borocarbonitrides (BCN) based on graphene as carbon sources, and its application for hydrogen evolution reaction (HER) in alkaline medium (1 M KOH) via one-step pyrolysis. Synthesis parameters such as the temperature and calcination time were optimized in order to improve the electrocatalytic activity being 10 h and 900 °C the optimal conditions of calcination. These conditions generated a low oxygen content and a stable graphene-like structure doped with B and N. In-depth XPS analysis revealed the strong N-B bond formed during the calcination, allowing the creation of a stable and homogeneous Bsingle bondCsingle bondN ternary material. The ratio of B:N were optimized obtaining for a ratio 0.5:40 the most active catalyst. This catalyst reached an overpotential at 10 mA cm-2 of 295 mV in 1 M KOH after an activation under Linnear Sweep Voltammetry (LSV) and chronopotentiometry, which is close to that observed for a commercial 20 % Pt/C catalyst.This study presents the successful production of metal-free borocarbonitrides (BCN) based on graphene as carbon sources, and its application for hydrogen evolution reaction (HER) in alkaline medium (1 M KOH) via one-step pyrolysis. Synthesis parameters such as the temperature and calcination time were optimized in order to improve the electrocatalytic activity being 10 h and 900 °C the optimal conditions of calcination. These conditions generated a low oxygen content and a stable graphene-like structure doped with B and N. In-depth XPS analysis revealed the strong N-B bond formed during the calcination, allowing the creation of a stable and homogeneous Bsingle bondCsingle bondN ternary material. The ratio of B:N were optimized obtaining for a ratio 0.5:40 the most active catalyst. This catalyst reached an overpotential at 10 mA cm-2 of 295 mV in 1 M KOH after an activation under Linnear Sweep Voltammetry (LSV) and chronopotentiometry, which is close to that observed for a commercial 20 % Pt/C catalyst.ELSEVIER SCIENCE SA202520252025info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://doi.org/10.1016/j.jelechem.2024.118856https://hdl.handle.net/10578/40484reponame:RUIdeRA. Repositorio Institucional de la UCLMinstname:Universidad de Castilla-La ManchaInglésinfo:eu-repo/semantics/openAccessoai:ruidera.uclm.es:10578/404842026-05-27T07:36:41Z
dc.title.none.fl_str_mv Metal-free borocarbonitrides as electrocatalysts for the hydrogen evolution reaction under alkaline media
title Metal-free borocarbonitrides as electrocatalysts for the hydrogen evolution reaction under alkaline media
spellingShingle Metal-free borocarbonitrides as electrocatalysts for the hydrogen evolution reaction under alkaline media
Cencerrero Fernández del Moral, Javier
Alkaline media
Borocarbonitride
HER
Heteroatom doping
Metal-free
title_short Metal-free borocarbonitrides as electrocatalysts for the hydrogen evolution reaction under alkaline media
title_full Metal-free borocarbonitrides as electrocatalysts for the hydrogen evolution reaction under alkaline media
title_fullStr Metal-free borocarbonitrides as electrocatalysts for the hydrogen evolution reaction under alkaline media
title_full_unstemmed Metal-free borocarbonitrides as electrocatalysts for the hydrogen evolution reaction under alkaline media
title_sort Metal-free borocarbonitrides as electrocatalysts for the hydrogen evolution reaction under alkaline media
dc.creator.none.fl_str_mv Cencerrero Fernández del Moral, Javier
Sánchez Paredes, Paula
Lucas Consuegra, Antonio de
Osa Puebla, Ana Raquel de la
Romero Izquierdo, Amaya
author Cencerrero Fernández del Moral, Javier
author_facet Cencerrero Fernández del Moral, Javier
Sánchez Paredes, Paula
Lucas Consuegra, Antonio de
Osa Puebla, Ana Raquel de la
Romero Izquierdo, Amaya
author_role author
author2 Sánchez Paredes, Paula
Lucas Consuegra, Antonio de
Osa Puebla, Ana Raquel de la
Romero Izquierdo, Amaya
author2_role author
author
author
author
dc.subject.none.fl_str_mv Alkaline media
Borocarbonitride
HER
Heteroatom doping
Metal-free
topic Alkaline media
Borocarbonitride
HER
Heteroatom doping
Metal-free
description This study presents the successful production of metal-free borocarbonitrides (BCN) based on graphene as carbon sources, and its application for hydrogen evolution reaction (HER) in alkaline medium (1 M KOH) via one-step pyrolysis. Synthesis parameters such as the temperature and calcination time were optimized in order to improve the electrocatalytic activity being 10 h and 900 °C the optimal conditions of calcination. These conditions generated a low oxygen content and a stable graphene-like structure doped with B and N. In-depth XPS analysis revealed the strong N-B bond formed during the calcination, allowing the creation of a stable and homogeneous Bsingle bondCsingle bondN ternary material. The ratio of B:N were optimized obtaining for a ratio 0.5:40 the most active catalyst. This catalyst reached an overpotential at 10 mA cm-2 of 295 mV in 1 M KOH after an activation under Linnear Sweep Voltammetry (LSV) and chronopotentiometry, which is close to that observed for a commercial 20 % Pt/C catalyst.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://doi.org/10.1016/j.jelechem.2024.118856
https://hdl.handle.net/10578/40484
url https://doi.org/10.1016/j.jelechem.2024.118856
https://hdl.handle.net/10578/40484
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv ELSEVIER SCIENCE SA
publisher.none.fl_str_mv ELSEVIER SCIENCE SA
dc.source.none.fl_str_mv reponame:RUIdeRA. Repositorio Institucional de la UCLM
instname:Universidad de Castilla-La Mancha
instname_str Universidad de Castilla-La Mancha
reponame_str RUIdeRA. Repositorio Institucional de la UCLM
collection RUIdeRA. Repositorio Institucional de la UCLM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812429

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