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dc.contributor.authorQin, Jiadong
dc.contributor.authorZhang, Yubai
dc.contributor.authorLowe, Sean E
dc.contributor.authorJiang, Lixue
dc.contributor.authorLing, Han Yeu
dc.contributor.authorShi, Ge
dc.contributor.authorLiu, Porun
dc.contributor.authorZhang, Shanqing
dc.contributor.authorZhong, Yu Lin
dc.contributor.authorZhao, Huijun
dc.date.accessioned2019-08-16T00:39:03Z
dc.date.available2019-08-16T00:39:03Z
dc.date.issued2019
dc.identifier.issn2050-7488
dc.identifier.doi10.1039/c9ta02244a
dc.identifier.urihttp://hdl.handle.net/10072/386607
dc.description.abstractGraphene oxide (GO) has drawn intense research interest over the past decade, contributing to remarkable progress in its relevant applications. The chemical production of GO, however, is challenged by destructive and slowly propagating oxidation, especially for large flake graphite. Herein, we report a simple but effective method to produce well-oxidized and less defective GO by chemically oxidizing commercially available expandable graphite at room temperature (25 °C). Compared to natural graphite with similar flake sizes, expandable graphite afforded faster complete oxidation under the same oxidizing conditions. In addition, chemical oxidation at room temperature, relative to that at higher temperatures (35 and 45 °C), resulted in a reduced defect concentration in GO. Furthermore, the GO derived from the oxidation of expandable graphite at room temperature exhibited superior electrical conductivity after mild thermal treatment at 150 °C. Considering the energy-saving in both GO synthesis and reduction, the low temperature GO conversion process can be easily integrated into many other electroconductive applications. As a proof of concept, we achieved a good LiFePO4 (without carbon-coating) cathode formulation with our GO, which contributed as a 2D binder (before annealing), and obtained a conductive cathode with improved capacity and high rate performance after mild thermal annealing at 150 °C.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherRoyal Society of Chemistry
dc.relation.ispartofpagefrom9646
dc.relation.ispartofpageto9655
dc.relation.ispartofissue16
dc.relation.ispartofjournalJournal of Materials Chemistry A
dc.relation.ispartofvolume7
dc.subject.fieldofresearchInorganic chemistry not elsewhere classified
dc.subject.fieldofresearchElectrochemical energy storage and conversion
dc.subject.fieldofresearchMacromolecular and materials chemistry
dc.subject.fieldofresearchChemical engineering
dc.subject.fieldofresearchMaterials engineering
dc.subject.fieldofresearchcode340299
dc.subject.fieldofresearchcode400404
dc.subject.fieldofresearchcode3403
dc.subject.fieldofresearchcode4004
dc.subject.fieldofresearchcode4016
dc.subject.keywordsScience & Technology
dc.subject.keywordsPhysical Sciences
dc.subject.keywordsTechnology
dc.subject.keywordsChemistry, Physical
dc.subject.keywordsEnergy & Fuels
dc.titleRoom temperature production of graphene oxide with thermally labile oxygen functional groups for improved lithium ion battery fabrication and performance
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationQin, J; Zhang, Y; Lowe, SE; Jiang, L; Ling, HY; Shi, G; Liu, P; Zhang, S; Zhong, YL; Zhao, H, Room temperature production of graphene oxide with thermally labile oxygen functional groups for improved lithium ion battery fabrication and performance, Journal of Materials Chemistry A, 2019, 7 (16), pp. 9646-9655
dc.date.updated2019-08-15T06:23:30Z
dc.description.versionAccepted Manuscript (AM)
gro.rights.copyright© 2019 Royal Society of Chemistry. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal website for access to the definitive, published version.
gro.hasfulltextFull Text
gro.griffith.authorZhao, Huijun
gro.griffith.authorLiu, Porun
gro.griffith.authorZhong, Yulin


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