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Facile kinetics of Li-ion intake causes superior rate capability in multiwalled carbon nanotube@TiO2 nanocomposite battery anodes
dc.contributor.author | Acevedo Peña, Próspero | |
dc.contributor.author | Haro, Marta | |
dc.contributor.author | Rincón, Marina | |
dc.contributor.author | Bisquert, Juan | |
dc.contributor.author | Garcia-Belmonte, Germà | |
dc.date.accessioned | 2015-07-15T10:04:16Z | |
dc.date.available | 2015-07-15T10:04:16Z | |
dc.date.issued | 2014-12 | |
dc.identifier.citation | ACEVEDO-PENA, Próspero, et al. Facile kinetics of Li-ion intake causes superior rate capability in multiwalled carbon nanotube@ TiO 2 nanocomposite battery anodes. Journal of Power Sources, 2014, 268: 397-403. | ca_CA |
dc.identifier.uri | http://hdl.handle.net/10234/127662 | |
dc.description.abstract | Nanotechnology produces hybrids with superior properties than its individual constituents. Here MWCNT@TiO2 composites have been synthesized by controlled hydrolysis of titanium isopropoxide over MWCNT, to be incorporated into Li-ion battery electrodes. Outstanding rate capability of the coated nanotubes is observed in comparison to pristine TiO2. Specific storage capacity as high as 250 mAh g−1 is achieved for the nanocomposite electrode which doubles that encountered for TiO2-based anodes. The mechanism explaining the enhancement in power performance has been revealed by means of electrochemical impedance methods. Although both pristine TiO2 and MWCNT@TiO2 would potentially exhibit comparable specific capacity, the charge transfer resistance for the latter is reduced by a factor 10, implying a key role of MWCNTs to favor the interfacial Li+ ion intake from the electrolyte. MWCNT efficiently provides electrons to the nanostructure through the Ti–C bond which assists the Li+ ion incorporation. These findings provide access to the detailed lithiation kinetics of a broad class of nanocomposites for battery applications. | ca_CA |
dc.format.extent | 6 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | Elsevier | ca_CA |
dc.relation.isPartOf | Journal of Power Sources Volume 268, 5 December 2014 | ca_CA |
dc.rights | Copyright © 2014 Elsevier B.V. All rights reserved. | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | * |
dc.subject | Li-ion batteries | ca_CA |
dc.subject | Core-shell materials | ca_CA |
dc.subject | Carbon nanotubes | ca_CA |
dc.subject | TiO2 | ca_CA |
dc.subject | Electrode kinetics | ca_CA |
dc.subject | Electrochemical impedance spectroscopy | ca_CA |
dc.title | Facile kinetics of Li-ion intake causes superior rate capability in multiwalled carbon nanotube@TiO2 nanocomposite battery anodes | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | http://dx.doi.org/0.1016/j.jpowsour.2014.06.058 | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | ca_CA |
dc.relation.publisherVersion | http://www.sciencedirect.com/science/article/pii/S0378775314009203 | ca_CA |
dc.type.version | info:eu-repo/semantics/acceptedVersion |
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