Hexagonal-shaped tin glycolate particles: A preliminary study of their suitability as li-ion insertion electrodes

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dc.contributor.authorNg, See-How
dc.contributor.authorChew, Sau-Yen
dc.contributor.authordos Santos, Dayse I. [UNESP]
dc.contributor.authorChen, Jun
dc.contributor.authorWang, Jia-Zhao
dc.contributor.authorDou, Shi-Xue
dc.contributor.authorLiu, Hua-Kun
dc.contributor.institutionUniv Wollongong
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:32:31Z
dc.date.available2014-05-20T15:32:31Z
dc.date.issued2008-01-01
dc.description.abstractTin glycolate particles were prepared by a simple, one-step, polyol-mediated synthesis in air in which tin oxalate precursor was added to ethylene glycol and heated at reflux. Hexagonal-shaped, micron-sized tin glycolate particles were formed when the solution had cooled. A series of tin oxides was produced by calcination of the synthesized tin glycolate at 600-800 degrees C. It was revealed that the micron-sized, hexagonal-shaped tin glycolate now consisted of nanosized tin-based particles (80-120 nm), encapsulated within a tin glycolate shell. XRD, TGA, and FT-IR measurements were conducted to account for the three-dimensional growth of the tin glycolate particles. When applied as an anode material for Li-ion batteries, the synthesized tin glycolate particles showed good electro-chemical reactivity in Li-ion insertion/ deinsertion, retaining a specific capacity of 416mAhg(-1) beyond 50cycles. Ibis performance was significantly better than those of all the other tin oxides nanoparticles (< 160mAhg(-1)) obtained after heat treatment in air. We strongly believe that the buffering of the volume expansion by the glycolate upon Li-Sn alloying is the main factor for the improved cycling of the electrode.en
dc.description.affiliationUniv Wollongong, Inst Superconduct & Elect Mat, Wollongong, NSW 2522, Australia
dc.description.affiliationUniv Wollongong, ARC Ctr Excellence Electromat Sci, Wollongong, NSW 2522, Australia
dc.description.affiliationSão Paulo State Univ, UNESP, São Paulo, Brazil
dc.description.affiliationUniv Wollongong, Intelligent Polymer Res Inst, Wollongong, NSW 2522, Australia
dc.description.affiliationUnespSão Paulo State Univ, UNESP, São Paulo, Brazil
dc.format.extent854-861
dc.identifierhttp://dx.doi.org/10.1002/asia.200700321
dc.identifier.citationChemistry-an Asian Journal. Weinheim: Wiley-v C H Verlag Gmbh, v. 3, n. 5, p. 854-861, 2008.
dc.identifier.doi10.1002/asia.200700321
dc.identifier.issn1861-4728
dc.identifier.urihttp://hdl.handle.net/11449/41399
dc.identifier.wosWOS:000255798800006
dc.language.isoeng
dc.publisherWiley-v C H Verlag Gmbh
dc.relation.ispartofChemistry-an Asian Journal
dc.relation.ispartofjcr3.692
dc.relation.ispartofsjr1,414
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectelectrochemistryen
dc.subjectlithium nanoparticlesen
dc.subjecttin glycolateen
dc.titleHexagonal-shaped tin glycolate particles: A preliminary study of their suitability as li-ion insertion electrodesen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-v C H Verlag Gmbh

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