Superior methanol electrooxidation performance of (110)-faceted nickel polyhedral nanocrystals

We present the synthesis of (110)-faceted nickel polyhedral nanocrystals (NCs) and their characterization as electrocatalysts for the methanol oxidation reaction (MOR). Ni NCs were produced at 180 °C through the reduction in solution of a Ni salt. They were combined with carbon black and Nafion and...

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Autores: Li, Junshan, Zuo, Yong, Liu, Junfeng, Wang, Xiang, Yu, Xiaoting, Du, Ruifeng, Zhang, Ting, Infante-Carrió, Maria F., Tang, Peng-Yi, Arbiol, Jordi, Llorca, Jordi, Luo, ZhiShan, Cabot, Andreu
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/206505
Acceso en línea:http://hdl.handle.net/10261/206505
Access Level:acceso abierto
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spelling Superior methanol electrooxidation performance of (110)-faceted nickel polyhedral nanocrystalsLi, JunshanZuo, YongLiu, JunfengWang, XiangYu, XiaotingDu, RuifengZhang, TingInfante-Carrió, Maria F.Tang, Peng-YiArbiol, JordiLlorca, JordiLuo, ZhiShanCabot, AndreuWe present the synthesis of (110)-faceted nickel polyhedral nanocrystals (NCs) and their characterization as electrocatalysts for the methanol oxidation reaction (MOR). Ni NCs were produced at 180 °C through the reduction in solution of a Ni salt. They were combined with carbon black and Nafion and deposited over glassy carbon to study their electrocatalytic properties. Electrodes based on (110)-faceted Ni NCs displayed a first order reaction with KOH in the concentration range from 0.1 M to 1.0 M. These electrodes were characterized by higher coverages of active species, but lower diffusion coefficients of the species limiting the reaction rate when compared with electrodes prepared from spherical Ni NCs. Overall, electrodes based on faceted Ni NCs displayed excellent performance with very high current densities, up to 61 mA cm−2, and unprecedented mass activities, up to 2 A mg−1, at 0.6 V vs. Hg/HgO in 1.0 M KOH containing 1.0 M methanol. These electrodes also displayed a notable stability. While they suffered an activity loss of ca. 30% during the first 10 000 s of operation, afterward activity stabilized at very high current densities, ∼35 mA cm−2, and mass activities, ∼1.2 A mg−1, with only a 0.5% decrease during operation from 20 000 to 30 000 s.This work was supported by the European Regional Development Funds and by the Spanish Ministerio de Economía y Competitividad through the project SEHTOP (ENE2016-77798-C4-3-R) and VALPEC (ENE2017-85087-C3). J. Li and T. Zhang thank the China Scholarship Council (CSC) for scholarship support. T. Zhang and J. Arbiol acknowledge funding from Generalitat de Catalunya 2017 SGR 327. ICN2 acknowledges support from the Severo Ochoa Programme (MINECO, Grant no. SEV-2013-0295). IREC and ICN2 are funded by the CERCA Programme/Generalitat de Catalunya. Part of the present work has been performed in the framework of Universitat Autònoma de Barcelona Materials Science PhD program. JL is a Serra Húnter Fellow and is grateful to ICREA Academia program and to Generalitat de Catalunya 2017 SGR 128.Peer reviewedRoyal Society of Chemistry (UK)European CommissionMinisterio de Economía y Competitividad (España)Ministerio de Ciencia, Innovación y Universidades (España)China Scholarship CouncilGeneralitat de CatalunyaInstitución Catalana de Investigación y Estudios AvanzadosUniversidad Autónoma de BarcelonaLi, Junshan [0000-0002-1482-1972]Liu, Junfeng [0000-0003-3164-6472]Arbiol, Jordi [0000-0002-0695-1726]Llorca, Jordi [0000-0002-7447-9582]Cabot, Andreu [0000-0002-7533-3251]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202020202019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/206505reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ENE2016-77798-C4-3-Rinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/ENE2017-85087-C3ENE2017-85087-C3/AEI/10.13039/501100011033info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/SEV-2013-0295https://doi.org/10.1039/C9TA07066DSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2065052026-05-22T06:33:51Z
dc.title.none.fl_str_mv Superior methanol electrooxidation performance of (110)-faceted nickel polyhedral nanocrystals
title Superior methanol electrooxidation performance of (110)-faceted nickel polyhedral nanocrystals
spellingShingle Superior methanol electrooxidation performance of (110)-faceted nickel polyhedral nanocrystals
Li, Junshan
title_short Superior methanol electrooxidation performance of (110)-faceted nickel polyhedral nanocrystals
title_full Superior methanol electrooxidation performance of (110)-faceted nickel polyhedral nanocrystals
title_fullStr Superior methanol electrooxidation performance of (110)-faceted nickel polyhedral nanocrystals
title_full_unstemmed Superior methanol electrooxidation performance of (110)-faceted nickel polyhedral nanocrystals
title_sort Superior methanol electrooxidation performance of (110)-faceted nickel polyhedral nanocrystals
dc.creator.none.fl_str_mv Li, Junshan
Zuo, Yong
Liu, Junfeng
Wang, Xiang
Yu, Xiaoting
Du, Ruifeng
Zhang, Ting
Infante-Carrió, Maria F.
Tang, Peng-Yi
Arbiol, Jordi
Llorca, Jordi
Luo, ZhiShan
Cabot, Andreu
author Li, Junshan
author_facet Li, Junshan
Zuo, Yong
Liu, Junfeng
Wang, Xiang
Yu, Xiaoting
Du, Ruifeng
Zhang, Ting
Infante-Carrió, Maria F.
Tang, Peng-Yi
Arbiol, Jordi
Llorca, Jordi
Luo, ZhiShan
Cabot, Andreu
author_role author
author2 Zuo, Yong
Liu, Junfeng
Wang, Xiang
Yu, Xiaoting
Du, Ruifeng
Zhang, Ting
Infante-Carrió, Maria F.
Tang, Peng-Yi
Arbiol, Jordi
Llorca, Jordi
Luo, ZhiShan
Cabot, Andreu
author2_role author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
Ministerio de Economía y Competitividad (España)
Ministerio de Ciencia, Innovación y Universidades (España)
China Scholarship Council
Generalitat de Catalunya
Institución Catalana de Investigación y Estudios Avanzados
Universidad Autónoma de Barcelona
Li, Junshan [0000-0002-1482-1972]
Liu, Junfeng [0000-0003-3164-6472]
Arbiol, Jordi [0000-0002-0695-1726]
Llorca, Jordi [0000-0002-7447-9582]
Cabot, Andreu [0000-0002-7533-3251]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description We present the synthesis of (110)-faceted nickel polyhedral nanocrystals (NCs) and their characterization as electrocatalysts for the methanol oxidation reaction (MOR). Ni NCs were produced at 180 °C through the reduction in solution of a Ni salt. They were combined with carbon black and Nafion and deposited over glassy carbon to study their electrocatalytic properties. Electrodes based on (110)-faceted Ni NCs displayed a first order reaction with KOH in the concentration range from 0.1 M to 1.0 M. These electrodes were characterized by higher coverages of active species, but lower diffusion coefficients of the species limiting the reaction rate when compared with electrodes prepared from spherical Ni NCs. Overall, electrodes based on faceted Ni NCs displayed excellent performance with very high current densities, up to 61 mA cm−2, and unprecedented mass activities, up to 2 A mg−1, at 0.6 V vs. Hg/HgO in 1.0 M KOH containing 1.0 M methanol. These electrodes also displayed a notable stability. While they suffered an activity loss of ca. 30% during the first 10 000 s of operation, afterward activity stabilized at very high current densities, ∼35 mA cm−2, and mass activities, ∼1.2 A mg−1, with only a 0.5% decrease during operation from 20 000 to 30 000 s.
publishDate 2019
dc.date.none.fl_str_mv 2019
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/206505
url http://hdl.handle.net/10261/206505
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
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info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ENE2016-77798-C4-3-R
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/ENE2017-85087-C3
ENE2017-85087-C3/AEI/10.13039/501100011033
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/SEV-2013-0295
https://doi.org/10.1039/C9TA07066D
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Royal Society of Chemistry (UK)
publisher.none.fl_str_mv Royal Society of Chemistry (UK)
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
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