Dual-phase CoP-CoTe2 nanowires as an efficient bifunctional electrocatalyst for bipolar membrane-assisted acid-alkaline water splitting

Detalhes bibliográficos
Autor(a) principal: Amorim, Isilda
Data de Publicação: 2021
Outros Autores: Xu, Junuyan, Zhang, Nan, Yu, Zhipeng, Araujo, Ana, Bento, M. Fátima, Liu, Lifeng
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://hdl.handle.net/1822/81432
Resumo: Supplementary data to this article can be found online at https://doi.org/10.1016/j.cej.2021.130454.
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spelling Dual-phase CoP-CoTe2 nanowires as an efficient bifunctional electrocatalyst for bipolar membrane-assisted acid-alkaline water splittingDual-phase CoP-CoTe2 nanowiresBipolar membraneWater splittingHydrogen evolution reactionOxygen evolution reactionDual-phase CoP-CoTe nanowires 2Ciências Naturais::Ciências QuímicasScience & TechnologySupplementary data to this article can be found online at https://doi.org/10.1016/j.cej.2021.130454.Electrochemical water splitting powered by renewable energy (e.g. solar, wind) has been recognized as a sustainable and environmentally-friendly way to produce "green" hydrogen. Significant efforts were dedicated recently to developing cheap and efficient earth-abundant electrocatalysts to make electrolyzed hydrogen economically competitive. Notwithstanding substantial progress, the operational voltage of water splitting in a single electrolyte system is still high, even highly efficient electrocatalysts are used to catalyze the hydrogen evolution (HER) and oxygen evolution reactions (OER). Taking into account that the HER and the OER are kinetically favorable in electrolytes with different pH values, in this work we demonstrate that overall water splitting can be accomplished in acid-alkaline dual electrolytes with an onset voltage as low as 1.13 V, enabled by a bipolar membrane (BPM) under the "reverse bias" condition with the novel dual-phase cobalt phosphide-cobalt ditelluride (CoP-CoTe2) nanowires being used as efficient and durable bifunctional catalysts. Furthermore, we show that using a BPM under the "forward bias" the voltages needed to reach 10 and 100 mA cm(-2) can be reduced to 1.01 and 1.37 V, respectively, due to the assistance of electrochemical neutralization resulting from the crossover of electrolytes. The bipolar membrane water electrolysis (BPMWE) can be sustained for at least 100 h without notable degradation.This work was financially supported by the Mobolizador Baterias 2030 project through the National Innovation Agency of Portugal (project no. POCI-01-0247-FEDER-046109). Isilda Amorim is thankful to Fundação para a Ciencia e Tecnologia (FCT) for the support of PhD grant No. SFRH/BD/137546/2018, co-financed by the Fundo Social Europeu (FSE) through the Programa Operacional Regional Norte (Norte 2020) under Portugal 2020.ElsevierUniversidade do MinhoAmorim, IsildaXu, JunuyanZhang, NanYu, ZhipengAraujo, AnaBento, M. FátimaLiu, Lifeng20212021-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/81432engAmorim, I., Xu, J., Zhang, N., Yu, Z., Araújo, A., Bento, F., & Liu, L. (2021, September). Dual-phase CoP−CoTe2 nanowires as an efficient bifunctional electrocatalyst for bipolar membrane-assisted acid-alkaline water splitting. Chemical Engineering Journal. Elsevier BV. http://doi.org/10.1016/j.cej.2021.1304541385-894710.1016/j.cej.2021.130454https://www.sciencedirect.com/science/article/pii/S1385894721020404info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:32:38Zoai:repositorium.sdum.uminho.pt:1822/81432Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:28:01.500121Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Dual-phase CoP-CoTe2 nanowires as an efficient bifunctional electrocatalyst for bipolar membrane-assisted acid-alkaline water splitting
title Dual-phase CoP-CoTe2 nanowires as an efficient bifunctional electrocatalyst for bipolar membrane-assisted acid-alkaline water splitting
spellingShingle Dual-phase CoP-CoTe2 nanowires as an efficient bifunctional electrocatalyst for bipolar membrane-assisted acid-alkaline water splitting
Amorim, Isilda
Dual-phase CoP-CoTe2 nanowires
Bipolar membrane
Water splitting
Hydrogen evolution reaction
Oxygen evolution reaction
Dual-phase CoP-CoTe nanowires 2
Ciências Naturais::Ciências Químicas
Science & Technology
title_short Dual-phase CoP-CoTe2 nanowires as an efficient bifunctional electrocatalyst for bipolar membrane-assisted acid-alkaline water splitting
title_full Dual-phase CoP-CoTe2 nanowires as an efficient bifunctional electrocatalyst for bipolar membrane-assisted acid-alkaline water splitting
title_fullStr Dual-phase CoP-CoTe2 nanowires as an efficient bifunctional electrocatalyst for bipolar membrane-assisted acid-alkaline water splitting
title_full_unstemmed Dual-phase CoP-CoTe2 nanowires as an efficient bifunctional electrocatalyst for bipolar membrane-assisted acid-alkaline water splitting
title_sort Dual-phase CoP-CoTe2 nanowires as an efficient bifunctional electrocatalyst for bipolar membrane-assisted acid-alkaline water splitting
author Amorim, Isilda
author_facet Amorim, Isilda
Xu, Junuyan
Zhang, Nan
Yu, Zhipeng
Araujo, Ana
Bento, M. Fátima
Liu, Lifeng
author_role author
author2 Xu, Junuyan
Zhang, Nan
Yu, Zhipeng
Araujo, Ana
Bento, M. Fátima
Liu, Lifeng
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Amorim, Isilda
Xu, Junuyan
Zhang, Nan
Yu, Zhipeng
Araujo, Ana
Bento, M. Fátima
Liu, Lifeng
dc.subject.por.fl_str_mv Dual-phase CoP-CoTe2 nanowires
Bipolar membrane
Water splitting
Hydrogen evolution reaction
Oxygen evolution reaction
Dual-phase CoP-CoTe nanowires 2
Ciências Naturais::Ciências Químicas
Science & Technology
topic Dual-phase CoP-CoTe2 nanowires
Bipolar membrane
Water splitting
Hydrogen evolution reaction
Oxygen evolution reaction
Dual-phase CoP-CoTe nanowires 2
Ciências Naturais::Ciências Químicas
Science & Technology
description Supplementary data to this article can be found online at https://doi.org/10.1016/j.cej.2021.130454.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://hdl.handle.net/1822/81432
url https://hdl.handle.net/1822/81432
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Amorim, I., Xu, J., Zhang, N., Yu, Z., Araújo, A., Bento, F., & Liu, L. (2021, September). Dual-phase CoP−CoTe2 nanowires as an efficient bifunctional electrocatalyst for bipolar membrane-assisted acid-alkaline water splitting. Chemical Engineering Journal. Elsevier BV. http://doi.org/10.1016/j.cej.2021.130454
1385-8947
10.1016/j.cej.2021.130454
https://www.sciencedirect.com/science/article/pii/S1385894721020404
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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