Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/37108
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dc.contributor.authorLoureiro, Francisco J.A.pt_PT
dc.contributor.authorPukazhSelvan, D.pt_PT
dc.contributor.authorBdikin, Igorpt_PT
dc.contributor.authorShaula, Aliaksandr L.pt_PT
dc.contributor.authorMikhalev, Sergey M.pt_PT
dc.contributor.authorFagg, Duncan P.pt_PT
dc.date.accessioned2023-04-17T11:48:03Z-
dc.date.issued2021-
dc.identifier.issn0013-4686pt_PT
dc.identifier.urihttp://hdl.handle.net/10773/37108-
dc.description.abstractThis work explores the electrochemical performance of a 10 wt.% MgH2 added titania anode for Li-ion half-cell batteries. We used a distribution function of relaxation times (DFRT) analysis to quantify the sources of polarisation losses from the impedance data. We observed a notable increase in both ohmic and polarisation resistance terms for the TiO2+10 wt.% MgH2 compared to the standard titania anode. Nonetheless, the modified electrode showed a significantly higher lithium diffusion coefficient than pure TiO2, with capacity retention reaching 300 mA h g−1 at 0.1C. Scanning electron microscopy (SEM) coupled with energy dispersive spectroscopy (EDS) reveals a higher surface coverage by secondary surface(s) upon lithium insertion for MgH2 added titania. Scanning Electron Microscopy (SEM) and atomic force microscopy (AFM) studies provide indirect evidence that different nanodomains with different conducting properties evolve at the anode side upon making various charging/discharging cycles.pt_PT
dc.language.isoengpt_PT
dc.publisherElsevierpt_PT
dc.relationPTDC/CTM-CTM/2156/2020, PTDC/QUI-ELT/3681/2020pt_PT
dc.relationPOCI-01-0247-FEDER-039926pt_PT
dc.relationPOCI-01-0145-FEDER-032241pt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00481%2F2020/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00481%2F2020/PTpt_PT
dc.relationCENTRO-01-0145-FEDER-022083pt_PT
dc.relationCEECIND/02797/2020pt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/CEEC IND 2017/CEECIND%2F04158%2F2017%2FCP1459%2FCT0029/PTpt_PT
dc.relationCEECIND/01117/2020pt_PT
dc.rightsembargoedAccesspt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectLithium ion battery (LIB)pt_PT
dc.subjectTitanium oxide (TiO2)pt_PT
dc.subjectMagnesium hydride (MgH2)pt_PT
dc.subjectElectrochemical Impedance spectroscopy (EIS)pt_PT
dc.subjectCyclic voltammetry (CV)pt_PT
dc.titleElectrochemical behaviour of magnesium hydride-added titania anode for Li-ion batterypt_PT
dc.typearticlept_PT
dc.description.versionpublishedpt_PT
dc.peerreviewedyespt_PT
degois.publication.titleElectrochimica Actapt_PT
degois.publication.volume394pt_PT
dc.date.embargo2023-10-20-
dc.identifier.doi10.1016/j.electacta.2021.139142pt_PT
dc.identifier.articlenumber139142pt_PT
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