Novel NiFe/NiFe-LDH composites as competitive catalysts for clean energy purposes
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.apsusc.2018.03.235 http://hdl.handle.net/11449/166143 |
Resumo: | The electrodeposition of metals generally employs several additives to avoid the formation of undesirable byproducts such as oxides and hydroxides. Although the deposition of metals is still the main goal in the most metals electroplating, the applicability of these byproducts might be an interesting field which is not explored in detail so far. In this work, the significance of water splitting reaction in clean energy production, employing NiFe hydroxides formed during the metals electrodeposition, is demonstrated for oxygen evolution reaction. The synthetized materials are composites of three components easily prepared in one-step by means of electrodeposition. Specifically, a granular NiFe alloy is obtained over which local pH variation and chloride presence induce the formation of a layered double hydroxide structure. The study of the influence of solution composition, deposition time, and deposition potential on the catalytic properties of the composites with respect to the oxygen evolution reaction are analyzed. Deposition times of few seconds, deposition potentials in the range -1.4 to -1.6 V vs. Ag/AgCl/KCl3M, and solutions containing Fe(II), Ni(II) and high chloride concentrations, lead to the best catalysts, showing an eta(10 mA cm 2) about 0.280 V. (C) 2018 Elsevier B.V. All rights reserved. |
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Novel NiFe/NiFe-LDH composites as competitive catalysts for clean energy purposesElectrodepositionByproductsNi-Fe LDHOxygen evolution reactionThe electrodeposition of metals generally employs several additives to avoid the formation of undesirable byproducts such as oxides and hydroxides. Although the deposition of metals is still the main goal in the most metals electroplating, the applicability of these byproducts might be an interesting field which is not explored in detail so far. In this work, the significance of water splitting reaction in clean energy production, employing NiFe hydroxides formed during the metals electrodeposition, is demonstrated for oxygen evolution reaction. The synthetized materials are composites of three components easily prepared in one-step by means of electrodeposition. Specifically, a granular NiFe alloy is obtained over which local pH variation and chloride presence induce the formation of a layered double hydroxide structure. The study of the influence of solution composition, deposition time, and deposition potential on the catalytic properties of the composites with respect to the oxygen evolution reaction are analyzed. Deposition times of few seconds, deposition potentials in the range -1.4 to -1.6 V vs. Ag/AgCl/KCl3M, and solutions containing Fe(II), Ni(II) and high chloride concentrations, lead to the best catalysts, showing an eta(10 mA cm 2) about 0.280 V. (C) 2018 Elsevier B.V. All rights reserved.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Portuguese FCT Funding AgencyEU ERDF (FEDER)Spanish GovernmentSao Paulo State Univ, Inst Chem, 55 Prof Francisco Degni St, BR-14800060 Araraquara, SP, BrazilDept Ciencia Mat & Quim Fis, Ge CPN Thin Films & Nanostruct Electrodeposit Grp, Marti & Franques 1, Barcelona 08028, SpainUniv Barcelona, Inst Nanocience & Nanotechnol IN2UB, Barcelona, SpainFed Univ Para, Fac Quim, Inst Ciencias Exatas & Nat, Rua Augusto Correa 1, BR-66075110 Belem, PA, BrazilUniv Lisbon, Inst Super Tecn, CQE, Dept Chem Engn, P-1049001 Lisbon, PortugalSao Paulo State Univ, Inst Chem, 55 Prof Francisco Degni St, BR-14800060 Araraquara, SP, BrazilCAPES: 88881.132671/2016-01CNPq: 141257/2014-8Portuguese FCT Funding Agency: PEst-OE/QUI/UI0100/2013Spanish Government: TEC2014-51940-C2-RElsevier B.V.Universidade Estadual Paulista (Unesp)Dept Ciencia Mat & Quim FisUniv BarcelonaFed Univ ParaUniv LisbonSakita, A. M. P. [UNESP]Valles, E.Della Noce, R.Benedetti, A. V. [UNESP]2018-11-29T15:54:42Z2018-11-29T15:54:42Z2018-07-31info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article107-116application/pdfhttp://dx.doi.org/10.1016/j.apsusc.2018.03.235Applied Surface Science. Amsterdam: Elsevier Science Bv, v. 447, p. 107-116, 2018.0169-4332http://hdl.handle.net/11449/16614310.1016/j.apsusc.2018.03.235WOS:000432795500014WOS000432795500014.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengApplied Surface Science1,093info:eu-repo/semantics/openAccess2023-12-23T06:21:52Zoai:repositorio.unesp.br:11449/166143Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:06:49.222517Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Novel NiFe/NiFe-LDH composites as competitive catalysts for clean energy purposes |
title |
Novel NiFe/NiFe-LDH composites as competitive catalysts for clean energy purposes |
spellingShingle |
Novel NiFe/NiFe-LDH composites as competitive catalysts for clean energy purposes Sakita, A. M. P. [UNESP] Electrodeposition Byproducts Ni-Fe LDH Oxygen evolution reaction |
title_short |
Novel NiFe/NiFe-LDH composites as competitive catalysts for clean energy purposes |
title_full |
Novel NiFe/NiFe-LDH composites as competitive catalysts for clean energy purposes |
title_fullStr |
Novel NiFe/NiFe-LDH composites as competitive catalysts for clean energy purposes |
title_full_unstemmed |
Novel NiFe/NiFe-LDH composites as competitive catalysts for clean energy purposes |
title_sort |
Novel NiFe/NiFe-LDH composites as competitive catalysts for clean energy purposes |
author |
Sakita, A. M. P. [UNESP] |
author_facet |
Sakita, A. M. P. [UNESP] Valles, E. Della Noce, R. Benedetti, A. V. [UNESP] |
author_role |
author |
author2 |
Valles, E. Della Noce, R. Benedetti, A. V. [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Dept Ciencia Mat & Quim Fis Univ Barcelona Fed Univ Para Univ Lisbon |
dc.contributor.author.fl_str_mv |
Sakita, A. M. P. [UNESP] Valles, E. Della Noce, R. Benedetti, A. V. [UNESP] |
dc.subject.por.fl_str_mv |
Electrodeposition Byproducts Ni-Fe LDH Oxygen evolution reaction |
topic |
Electrodeposition Byproducts Ni-Fe LDH Oxygen evolution reaction |
description |
The electrodeposition of metals generally employs several additives to avoid the formation of undesirable byproducts such as oxides and hydroxides. Although the deposition of metals is still the main goal in the most metals electroplating, the applicability of these byproducts might be an interesting field which is not explored in detail so far. In this work, the significance of water splitting reaction in clean energy production, employing NiFe hydroxides formed during the metals electrodeposition, is demonstrated for oxygen evolution reaction. The synthetized materials are composites of three components easily prepared in one-step by means of electrodeposition. Specifically, a granular NiFe alloy is obtained over which local pH variation and chloride presence induce the formation of a layered double hydroxide structure. The study of the influence of solution composition, deposition time, and deposition potential on the catalytic properties of the composites with respect to the oxygen evolution reaction are analyzed. Deposition times of few seconds, deposition potentials in the range -1.4 to -1.6 V vs. Ag/AgCl/KCl3M, and solutions containing Fe(II), Ni(II) and high chloride concentrations, lead to the best catalysts, showing an eta(10 mA cm 2) about 0.280 V. (C) 2018 Elsevier B.V. All rights reserved. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11-29T15:54:42Z 2018-11-29T15:54:42Z 2018-07-31 |
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 |
http://dx.doi.org/10.1016/j.apsusc.2018.03.235 Applied Surface Science. Amsterdam: Elsevier Science Bv, v. 447, p. 107-116, 2018. 0169-4332 http://hdl.handle.net/11449/166143 10.1016/j.apsusc.2018.03.235 WOS:000432795500014 WOS000432795500014.pdf |
url |
http://dx.doi.org/10.1016/j.apsusc.2018.03.235 http://hdl.handle.net/11449/166143 |
identifier_str_mv |
Applied Surface Science. Amsterdam: Elsevier Science Bv, v. 447, p. 107-116, 2018. 0169-4332 10.1016/j.apsusc.2018.03.235 WOS:000432795500014 WOS000432795500014.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Applied Surface Science 1,093 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
107-116 application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier B.V. |
publisher.none.fl_str_mv |
Elsevier B.V. |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129286126698496 |