Influence of boron doping level and calcination temperature on hydrogen evolution reaction in acid medium of metal-free graphene aerogels

In this work, metal-free boron-doped graphene-based aerogels were successfully synthesized via a one-step autoclave assembly followed by freeze-drying and used as electrocatalysts for the hydrogen evolution reaction (HER) in acidic media. The synthesized reduced graphene oxide aerogels (rGOA) showed...

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Detalhes bibliográficos
Autores: Cencerrero Fernández del Moral, Javier, Sánchez Paredes, Paula, Lucas Consuegra, Antonio de, Osa Puebla, Ana Raquel de la, Romero Izquierdo, Amaya
Formato: artículo
Fecha de publicación:2023
País:España
Recursos:Universidad de Castilla-La Mancha
Repositorio:RUIdeRA. Repositorio Institucional de la UCLM
OAI Identifier:oai:ruidera.uclm.es:10578/33034
Acesso em linha:https://doi.org/10.1016/j.heliyon.2023.e20748
https://hdl.handle.net/10578/33034
Access Level:acceso abierto
Palavra-chave:Hydrogen evolution reaction
Heteroatom doped graphene
3D graphene aerogels
Metal free electrocatalysts
Boron-doping
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spelling Influence of boron doping level and calcination temperature on hydrogen evolution reaction in acid medium of metal-free graphene aerogelsCencerrero Fernández del Moral, JavierSánchez Paredes, PaulaLucas Consuegra, Antonio deOsa Puebla, Ana Raquel de laRomero Izquierdo, AmayaHydrogen evolution reactionHeteroatom doped graphene3D graphene aerogelsMetal free electrocatalystsBoron-dopingIn this work, metal-free boron-doped graphene-based aerogels were successfully synthesized via a one-step autoclave assembly followed by freeze-drying and used as electrocatalysts for the hydrogen evolution reaction (HER) in acidic media. The synthesized reduced graphene oxide aerogels (rGOA) showed improved electrocatalytic activity by introducing boron and structural defects. The amount of boric acid used both as a dopant and reducing agent in the synthesis was optimized (boric acid/GO mass ratio = 17.5) to practically reach the crystallization limit of boric acid (boric acid/GO mass ratio = 20). It was observed that the higher the amount of boric acid added, the more boron was incorporated into the carbonaceous structure, improving the electrocatalytic activity of the final aerogel. Furthermore, calcination of the boron-doped electrocatalyst at 600 °C resulted in final aerogels with low oxygen content, moderate surface area, bimodal pore size distribution, and a high electrochemical active surface area. The final 3D graphene aerogel developed in this work, showed such outstanding electrocatalytic activity in HER as to replace noble metal-based electrocatalysts in the future.Elsevier202420242023info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://doi.org/10.1016/j.heliyon.2023.e20748https://hdl.handle.net/10578/33034reponame:RUIdeRA. Repositorio Institucional de la UCLMinstname:Universidad de Castilla-La ManchaInglésPID2019-107499RB-100BES-2020-093865info:eu-repo/semantics/openAccessoai:ruidera.uclm.es:10578/330342026-05-27T07:36:41Z
dc.title.none.fl_str_mv Influence of boron doping level and calcination temperature on hydrogen evolution reaction in acid medium of metal-free graphene aerogels
title Influence of boron doping level and calcination temperature on hydrogen evolution reaction in acid medium of metal-free graphene aerogels
spellingShingle Influence of boron doping level and calcination temperature on hydrogen evolution reaction in acid medium of metal-free graphene aerogels
Cencerrero Fernández del Moral, Javier
Hydrogen evolution reaction
Heteroatom doped graphene
3D graphene aerogels
Metal free electrocatalysts
Boron-doping
title_short Influence of boron doping level and calcination temperature on hydrogen evolution reaction in acid medium of metal-free graphene aerogels
title_full Influence of boron doping level and calcination temperature on hydrogen evolution reaction in acid medium of metal-free graphene aerogels
title_fullStr Influence of boron doping level and calcination temperature on hydrogen evolution reaction in acid medium of metal-free graphene aerogels
title_full_unstemmed Influence of boron doping level and calcination temperature on hydrogen evolution reaction in acid medium of metal-free graphene aerogels
title_sort Influence of boron doping level and calcination temperature on hydrogen evolution reaction in acid medium of metal-free graphene aerogels
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 Hydrogen evolution reaction
Heteroatom doped graphene
3D graphene aerogels
Metal free electrocatalysts
Boron-doping
topic Hydrogen evolution reaction
Heteroatom doped graphene
3D graphene aerogels
Metal free electrocatalysts
Boron-doping
description In this work, metal-free boron-doped graphene-based aerogels were successfully synthesized via a one-step autoclave assembly followed by freeze-drying and used as electrocatalysts for the hydrogen evolution reaction (HER) in acidic media. The synthesized reduced graphene oxide aerogels (rGOA) showed improved electrocatalytic activity by introducing boron and structural defects. The amount of boric acid used both as a dopant and reducing agent in the synthesis was optimized (boric acid/GO mass ratio = 17.5) to practically reach the crystallization limit of boric acid (boric acid/GO mass ratio = 20). It was observed that the higher the amount of boric acid added, the more boron was incorporated into the carbonaceous structure, improving the electrocatalytic activity of the final aerogel. Furthermore, calcination of the boron-doped electrocatalyst at 600 °C resulted in final aerogels with low oxygen content, moderate surface area, bimodal pore size distribution, and a high electrochemical active surface area. The final 3D graphene aerogel developed in this work, showed such outstanding electrocatalytic activity in HER as to replace noble metal-based electrocatalysts in the future.
publishDate 2023
dc.date.none.fl_str_mv 2023
2024
2024
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.heliyon.2023.e20748
https://hdl.handle.net/10578/33034
url https://doi.org/10.1016/j.heliyon.2023.e20748
https://hdl.handle.net/10578/33034
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv PID2019-107499RB-100
BES-2020-093865
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
publisher.none.fl_str_mv Elsevier
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 15,301603

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