Characterization and electrochemical performance of CeO2 and Eu-doped CeO2 films as a manganese redox flow battery component
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 |
DOI: | 10.1016/j.jre.2018.05.004 |
Texto Completo: | http://dx.doi.org/10.1016/j.jre.2018.05.004 http://hdl.handle.net/11449/184000 |
Resumo: | Hexagonal CeO2 and Eu-doped CeO2 nanoparticles were obtained using a facile microwave-hydrothermal method under mild conditions and their application towards manganese redox flow battery component were studied. The structural properties were studied by X-ray diffraction and indicate that samples present a fluorite structure. Raman spectroscopy shows Eu3+ ions substitute Ce4+ and generate oxygen vacancies. Electrochemical properties of pure and Eu-doped CeO2 films deposited at graphite substrates investigated by cyclic voltammetry and galvanostatic charge-discharge indicate that dopant concentration affects the electrochemical properties of CeO2. The increase in the reversibility redox of electrochemical systems observed is attributed to coexistence of Ce4+/Ce3+ redox couple confirmed by XPS. Charge-discharge tests display coulombic and voltage efficiency values of above 80% and 90%, respectively. The obtained specific capacity for Ce0.99Eu0.01O2 (372.49 mAh/g) and pure oxide (334.84 mAh/g) indicates that both samples are promising for application in Mn-batteries. (C) 2018 Published by Elsevier B.V. on behalf of Chinese Society of Rare Earths. |
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Characterization and electrochemical performance of CeO2 and Eu-doped CeO2 films as a manganese redox flow battery componentCerium oxideEuropiumNanoparticlesElectrochemical propertiesBatteriesRare earthsHexagonal CeO2 and Eu-doped CeO2 nanoparticles were obtained using a facile microwave-hydrothermal method under mild conditions and their application towards manganese redox flow battery component were studied. The structural properties were studied by X-ray diffraction and indicate that samples present a fluorite structure. Raman spectroscopy shows Eu3+ ions substitute Ce4+ and generate oxygen vacancies. Electrochemical properties of pure and Eu-doped CeO2 films deposited at graphite substrates investigated by cyclic voltammetry and galvanostatic charge-discharge indicate that dopant concentration affects the electrochemical properties of CeO2. The increase in the reversibility redox of electrochemical systems observed is attributed to coexistence of Ce4+/Ce3+ redox couple confirmed by XPS. Charge-discharge tests display coulombic and voltage efficiency values of above 80% and 90%, respectively. The obtained specific capacity for Ce0.99Eu0.01O2 (372.49 mAh/g) and pure oxide (334.84 mAh/g) indicates that both samples are promising for application in Mn-batteries. (C) 2018 Published by Elsevier B.V. on behalf of Chinese Society of Rare Earths.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)Rede Mineira de Quimica (RQ-MG)Univ Fed Uberlandia, Inst Chem, BR-38400902 Uberlandia, MG, BrazilSao Paulo State Univ, Inst Chem, POB 355, BR-14801907 Araraquara, SP, BrazilUniv Fed Sao Carlos, Dept Chem, LIEC, BR-13565905 Sao Carlos, SP, BrazilSao Paulo State Univ, Inst Chem, POB 355, BR-14801907 Araraquara, SP, BrazilFAPEMIG: APQ-00330-14Elsevier B.V.Universidade Federal de Uberlândia (UFU)Universidade Estadual Paulista (Unesp)Universidade Federal de São Carlos (UFSCar)Rodrigues, Monica A.Catto, Ariadne C. [UNESP]Longo, ElsonNossol, EdsonLima, Renata C.2019-10-03T18:19:15Z2019-10-03T18:19:15Z2018-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1074-1083http://dx.doi.org/10.1016/j.jre.2018.05.004Journal Of Rare Earths. Amsterdam: Elsevier Science Bv, v. 36, n. 10, p. 1074-1083, 2018.1002-0721http://hdl.handle.net/11449/18400010.1016/j.jre.2018.05.004WOS:000446458700009Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal Of Rare Earthsinfo:eu-repo/semantics/openAccess2021-10-22T19:44:47Zoai:repositorio.unesp.br:11449/184000Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-06T00:03:45.231365Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Characterization and electrochemical performance of CeO2 and Eu-doped CeO2 films as a manganese redox flow battery component |
title |
Characterization and electrochemical performance of CeO2 and Eu-doped CeO2 films as a manganese redox flow battery component |
spellingShingle |
Characterization and electrochemical performance of CeO2 and Eu-doped CeO2 films as a manganese redox flow battery component Characterization and electrochemical performance of CeO2 and Eu-doped CeO2 films as a manganese redox flow battery component Rodrigues, Monica A. Cerium oxide Europium Nanoparticles Electrochemical properties Batteries Rare earths Rodrigues, Monica A. Cerium oxide Europium Nanoparticles Electrochemical properties Batteries Rare earths |
title_short |
Characterization and electrochemical performance of CeO2 and Eu-doped CeO2 films as a manganese redox flow battery component |
title_full |
Characterization and electrochemical performance of CeO2 and Eu-doped CeO2 films as a manganese redox flow battery component |
title_fullStr |
Characterization and electrochemical performance of CeO2 and Eu-doped CeO2 films as a manganese redox flow battery component Characterization and electrochemical performance of CeO2 and Eu-doped CeO2 films as a manganese redox flow battery component |
title_full_unstemmed |
Characterization and electrochemical performance of CeO2 and Eu-doped CeO2 films as a manganese redox flow battery component Characterization and electrochemical performance of CeO2 and Eu-doped CeO2 films as a manganese redox flow battery component |
title_sort |
Characterization and electrochemical performance of CeO2 and Eu-doped CeO2 films as a manganese redox flow battery component |
author |
Rodrigues, Monica A. |
author_facet |
Rodrigues, Monica A. Rodrigues, Monica A. Catto, Ariadne C. [UNESP] Longo, Elson Nossol, Edson Lima, Renata C. Catto, Ariadne C. [UNESP] Longo, Elson Nossol, Edson Lima, Renata C. |
author_role |
author |
author2 |
Catto, Ariadne C. [UNESP] Longo, Elson Nossol, Edson Lima, Renata C. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal de Uberlândia (UFU) Universidade Estadual Paulista (Unesp) Universidade Federal de São Carlos (UFSCar) |
dc.contributor.author.fl_str_mv |
Rodrigues, Monica A. Catto, Ariadne C. [UNESP] Longo, Elson Nossol, Edson Lima, Renata C. |
dc.subject.por.fl_str_mv |
Cerium oxide Europium Nanoparticles Electrochemical properties Batteries Rare earths |
topic |
Cerium oxide Europium Nanoparticles Electrochemical properties Batteries Rare earths |
description |
Hexagonal CeO2 and Eu-doped CeO2 nanoparticles were obtained using a facile microwave-hydrothermal method under mild conditions and their application towards manganese redox flow battery component were studied. The structural properties were studied by X-ray diffraction and indicate that samples present a fluorite structure. Raman spectroscopy shows Eu3+ ions substitute Ce4+ and generate oxygen vacancies. Electrochemical properties of pure and Eu-doped CeO2 films deposited at graphite substrates investigated by cyclic voltammetry and galvanostatic charge-discharge indicate that dopant concentration affects the electrochemical properties of CeO2. The increase in the reversibility redox of electrochemical systems observed is attributed to coexistence of Ce4+/Ce3+ redox couple confirmed by XPS. Charge-discharge tests display coulombic and voltage efficiency values of above 80% and 90%, respectively. The obtained specific capacity for Ce0.99Eu0.01O2 (372.49 mAh/g) and pure oxide (334.84 mAh/g) indicates that both samples are promising for application in Mn-batteries. (C) 2018 Published by Elsevier B.V. on behalf of Chinese Society of Rare Earths. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-10-01 2019-10-03T18:19:15Z 2019-10-03T18:19:15Z |
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.jre.2018.05.004 Journal Of Rare Earths. Amsterdam: Elsevier Science Bv, v. 36, n. 10, p. 1074-1083, 2018. 1002-0721 http://hdl.handle.net/11449/184000 10.1016/j.jre.2018.05.004 WOS:000446458700009 |
url |
http://dx.doi.org/10.1016/j.jre.2018.05.004 http://hdl.handle.net/11449/184000 |
identifier_str_mv |
Journal Of Rare Earths. Amsterdam: Elsevier Science Bv, v. 36, n. 10, p. 1074-1083, 2018. 1002-0721 10.1016/j.jre.2018.05.004 WOS:000446458700009 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal Of Rare Earths |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1074-1083 |
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_ |
1822182233181519872 |
dc.identifier.doi.none.fl_str_mv |
10.1016/j.jre.2018.05.004 |