Mostrar el registro sencillo del ítem
Probing Lithiation Kinetics of Carbon-Coated ZnFe2O4 Nanoparticle Battery Anodes
dc.contributor.author | Martínez Julian, Fernando | |
dc.contributor.author | Guerrero, Antonio | |
dc.contributor.author | Haro, Marta | |
dc.contributor.author | Bisquert, Juan | |
dc.contributor.author | Bresser, Dominic | |
dc.contributor.author | Paillard, Elie | |
dc.contributor.author | Passerini, Stefano | |
dc.contributor.author | Garcia-Belmonte, Germà | |
dc.date.accessioned | 2015-09-14T09:37:51Z | |
dc.date.available | 2015-09-14T09:37:51Z | |
dc.date.issued | 2014-03 | |
dc.identifier.citation | MARTÍNEZ JULIÁN, Fernando, et al. Probing lithiation kinetics of carbon-coated ZnFe2O4 nanoparticle battery anodes. The Journal of Physical Chemistry C, 2014, 118.12: 6069-6076. | ca_CA |
dc.identifier.uri | http://hdl.handle.net/10234/132149 | |
dc.description.abstract | The investigation of the lithiation-delithiation kinetics of anodes comprising carbon-coated ZnFe2O4 nanoparticles is reported in here. The study confirmed that, as occurring with other conversion electrodes, lithiation of ZnFe2O4 nanoparticles is a multistep process involving the presence of intermediate Li-Zn-Fe-O phases as precursors for the formation of amorphous Li2O. A detailed knowledge on the reaction kinetics of the involved electrochemical mechanisms has been achieved by using impedance spectroscopy. It has been observed that lithiation reactions introduce a long delay that limits the electrode charging, not related to diffusion mechanisms. The sloping curve following the conversion plateau of the galvanostatic discharge is connected to a retardation effect in the reaction kinetics. This limitation is seen as an additional resistive process originated by the specific lithiation microscopic features. It is concluded that capacitance spectra allow distinguishing two separate processes: formation of kinetically favored intermediate Li-Zn-Fe-O phases and subsequent reaction to produce highly dispersed LiZn and Fe0 in an amorphous Li2O matrix. A detailed electrical model is provided accounting for the overall electrode lithiation process | ca_CA |
dc.format.extent | 7 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | American Chemical Society | ca_CA |
dc.relation.isPartOf | Journal of Physical Chemistry C Volume 118, Issue 12, 27 March 2014 | ca_CA |
dc.rights | © 2014 American Chemical Society. | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | * |
dc.subject | Electrochemical electrodes | ca_CA |
dc.subject | Anodes | ca_CA |
dc.subject | Carbon | ca_CA |
dc.subject | Kinetics | ca_CA |
dc.subject | Lithiation reaction | ca_CA |
dc.subject | Zinc | ca_CA |
dc.subject | Nanoparticles | ca_CA |
dc.subject | Lithium | ca_CA |
dc.subject | Impedance spectroscopy | ca_CA |
dc.subject | Electric discharges | ca_CA |
dc.title | Probing Lithiation Kinetics of Carbon-Coated ZnFe2O4 Nanoparticle Battery Anodes | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | http://dx.doi.org/10.1021/jp412641v | |
dc.rights.accessRights | info:eu-repo/semantics/restrictedAccess | ca_CA |
dc.relation.publisherVersion | http://pubs.acs.org/doi/abs/10.1021/jp412641v | ca_CA |
dc.type.version | info:eu-repo/semantics/publishedVersion |
Ficheros en el ítem
Ficheros | Tamaño | Formato | Ver |
---|---|---|---|
No hay ficheros asociados a este ítem. |
Este ítem aparece en la(s) siguiente(s) colección(ones)
-
QUIO_Articles [693]
Articles de publicacions periòdiques -
FCA_Articles [507]
Articles de publicacions periódiques