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dc.contributor.authorQiu, Jingxia
dc.contributor.authorLai, Chao
dc.contributor.authorWang, Yazhou
dc.contributor.authorLi, Sheng
dc.contributor.authorZhang, Shanqing
dc.date.accessioned2017-06-29T12:30:59Z
dc.date.available2017-06-29T12:30:59Z
dc.date.issued2014
dc.identifier.issn1385-8947
dc.identifier.doi10.1016/j.cej.2014.06.116
dc.identifier.urihttp://hdl.handle.net/10072/67008
dc.description.abstractMesoporous TiO2/graphene composite is synthesized using graphene oxide (GO) and cheap TiOSO4 as precursors via a facile one-step hydrothermal route. In this process, Ti(OH)4, the hydrolysis product of TiOSO4 in acidic environment reacts with functional groups (epoxy bridges, hydroxyl groups, carboxyl groups) on the GO sheets, which establishes strong Ti-O-C chemical bonds that link in situ formed TiO2 nanoparticles and graphene sheets together. Fourier transform infrared (FT-IR), Raman and X-ray photoelectron spectroscopy (XPS) confirms the existence of the Ti-O-C chemical bond in the resultant composite. Such kind of chemical bond could prevent the aggregation of TiO2 nanoparticles, avoid the restacking of graphene sheets, facilitate the fast transport of the Li-ions, enhance electronic conductivity, offer a high tap density, maintain the structural integrity during charge/discharge process, and consequently achieve excellent cycle stability and high rate capability in Li-ion batteries. At the current density of 5000 mA g-1, the discharge capacity of the composite can be readily retained at 141.7 mAh g-1 after 100 cycles, which is outstanding among the TiO2 composites in the literature.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoeng
dc.publisherElsevier
dc.publisher.placeNetherlands
dc.relation.ispartofstudentpublicationY
dc.relation.ispartofpagefrom247
dc.relation.ispartofpageto254
dc.relation.ispartofjournalChemical Engineering Journal
dc.relation.ispartofvolume256
dc.rights.retentionY
dc.subject.fieldofresearchSolid state chemistry
dc.subject.fieldofresearchElectrochemistry
dc.subject.fieldofresearchChemical engineering
dc.subject.fieldofresearchCivil engineering
dc.subject.fieldofresearchEnvironmental engineering
dc.subject.fieldofresearchMaterials engineering
dc.subject.fieldofresearchcode340210
dc.subject.fieldofresearchcode340604
dc.subject.fieldofresearchcode4004
dc.subject.fieldofresearchcode4005
dc.subject.fieldofresearchcode4011
dc.subject.fieldofresearchcode4016
dc.titleResilient mesoporous TiO2/graphene nanocomposite for high rate performance lithium-ion batteries
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.facultyGriffith Sciences, Griffith School of Environment
gro.hasfulltextNo Full Text
gro.griffith.authorZhang, Shanqing


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