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dc.contributor.authorSoler-Piña, Francisco Javier
dc.contributor.authorHernández-Rentero, C.
dc.contributor.authorCaballero Amores, Álvaro
dc.contributor.authorMorales Palomino, Julián
dc.contributor.authorRodríguez-Castellón, Enrique
dc.contributor.authorCanales-Vázquez, Jesús
dc.date.accessioned2020-01-28T12:04:18Z
dc.date.available2020-01-28T12:04:18Z
dc.date.issued2020
dc.identifier.urihttp://hdl.handle.net/10396/19400
dc.description.abstractA C/Ni composite was prepared via thermal decomposition of a nickel oleate complex at 700 °C, yielding disperse Ni nanocrystals with an average size of 20 nm, encapsulated by carbon nanosheets as deduced from transmission electron microscopy (TEM) images and confirmed from X-ray photoelectron spectroscopy (XPS). Furthermore, the X-ray diffraction pattern revealed a good ordering of the carbon layers, forced by the Ni encapsulation to adopt a bending structure. Considering the close interaction between the graphitized framework and the metallic nanoparticles we have studied the properties of the composite as an anode for Li-ion batteries. Compared with other nanostructured synthetic carbons, this carbon composite has a low voltage hysteresis and a modest irreversible capacity value, properties that play a significant role in its behaviour as electrodes in full cell configuration. At moderate rate values, 0.25 C, the electrode delivers an average capacity value around 723 mAh·g−1 on cycling, among the highest values so far reported for this carbon type. At higher rate values, 1 C, the average capacity values delivered by the cell on cycling decrease, around 205 mAh·g−1, but it maintains good capacity retention, a coulombic efficiency close to 100% after the first cycles and recovery of the capacity values when the rate is restored from 3 to 0.1 C.es_ES
dc.format.mimetypeapplication/pdfes_ES
dc.language.isoenges_ES
dc.rightshttps://creativecommons.org/licenses/by-nc-nd/4.0/es_ES
dc.sourceNano Research volume 13, 86–94 (2020)es_ES
dc.subjectCarbon nanosheetses_ES
dc.subjectNickel nanoparticleses_ES
dc.subjectAnodees_ES
dc.subjectLithium batterieses_ES
dc.titleHighly graphitized carbon nanosheets with embedded Ni nanocrystals as anode for Li-ion batterieses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1007/s12274-019-2576-4es_ES
dc.relation.projectIDGobierno de España. MAT2017-87541-Res_ES
dc.relation.projectIDJunta de Andalucía. FQM-175es_ES
dc.relation.projectIDGobierno de España. RTI2018-099668-BC22es_ES
dc.relation.projectIDJunta de Andalucía. UMA18-FEDERJA-126es_ES
dc.relation.projectID2019-GRIN-27165es_ES
dc.rights.accessRightsinfo:eu-repo/semantics/embargoedAccesses_ES


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