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Nickel-cobalt oxide modified with reduced graphene oxide: Performance and degradation for energy storage applications

hal.structure.identifierCentro de Quimica Estrutural [CQE]
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorADÁN-MÁS, Alberto
hal.structure.identifierADEM, GI-MOSM, ISEL-Instituto Superior de Engenharia de Lisboa
hal.structure.identifierCentro de Quimica Estrutural [CQE]
dc.contributor.authorSILVA, Maria Teresa
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierRéseau sur le stockage électrochimique de l'énergie [RS2E]
dc.contributor.authorGUERLOU-DEMOURGUES, Liliane
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorBOURGEOIS, Lydie
hal.structure.identifierPlateforme Aquitaine de Caractérisation des Matériaux [PLACAMAT]
dc.contributor.authorLABRUGERE-SARROSTE, Chritine
hal.structure.identifierCentro de Quimica Estrutural [CQE]
dc.contributor.authorMONTEMOR, Maria De Fátima
dc.date.issued2019-04
dc.identifier.issn0378-7753
dc.description.abstractEnNickel-cobalt oxide is synthesized in combination with electrochemically reduced graphene oxide (Er-GO) by one-step electrodeposition on stainless steel followed by thermal treatment. The presence of reduced graphene oxide leads to enhanced electrochemical response, with a capacity increase from 113 mA h g−1 to 180 mA h g−1, and to increased faradaic efficiency and rate capability. Compared to Ni-Co oxide, the addition of reduced graphene oxide increases capacity retention from 58% to 83% after 5000 cycles. The material fade during cycling is studied by means of electrochemical impedance spectroscopy, electron diffraction spectroscopy and scanning electron microscopy. As a result, different degradation mechanisms are identified as source of the capacity decay, such as microstructural cracking, phase transformation and parasitic reactions.
dc.language.isoen
dc.publisherElsevier
dc.rights.urihttp://creativecommons.org/licenses/by-nc/
dc.subject.enElectrochemically reduced graphene oxide
dc.subject.enNickel-cobalt oxide
dc.subject.enEnergy storage
dc.subject.enElectrode degradation
dc.subject.enElectrochemical impedance spectroscopy
dc.title.enNickel-cobalt oxide modified with reduced graphene oxide: Performance and degradation for energy storage applications
dc.typeArticle de revue
dc.identifier.doi10.1016/j.jpowsour.2019.02.055
dc.subject.halChimie/Matériaux
bordeaux.journalJournal of Power Sources
bordeaux.page12-26
bordeaux.volume419
bordeaux.peerReviewedoui
hal.identifierhal-02095664
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02095664v1
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