Carbon nanocages with nanographene shell for high-rate lithium ion batteries

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dc.contributor.authorWang, Kaixue
dc.contributor.authorLi, Zhonglai
dc.contributor.authorWang, Yonggang
dc.contributor.authorLi, Haimei
dc.contributor.authorChen, Jiesheng
dc.contributor.authorHolmes, Justin D.
dc.contributor.funderNational Natural Science Foundation of Chinaen
dc.contributor.funderShanghai Jiao Tong Universityen
dc.date.accessioned2018-08-30T11:16:00Z
dc.date.available2018-08-30T11:16:00Z
dc.date.issued2010-09-24
dc.date.updated2018-08-06T15:23:50Z
dc.description.abstractCarbon nanocages with a nanographene shell have been prepared by catalytic decomposition of p-xylene on a MgO supported Co and Mo catalyst in supercritical CO2 at a pressure of 10.34 MPa and temperatures ranging from 650 to 750 °C. The electrochemical performance of these carbon nanocages as anodes for lithium ion batteries has been evaluated by galvanostatic cycling. The carbon nanocages prepared at a temperature of 750 °C exhibited relatively high reversible capacities, superior rate performance and excellent cycling life. The advanced performance of the carbon nanocages prepared at 750 °C is ascribed to their unique structural features: (1) nanographene shells and the good inter-cage contact ensuring fast electron transportation, (2) a porous network formed by fine pores in the carbon shell and the void space among the cages facilitating the penetration of the electrolyte and ions within the electrode, (3) thin carbon shells shortening the diffusion distance of Li ions, and (4) the high specific surface area providing a large number of active sites for charge-transfer reactions. These carbon nanocages are promising candidates for application in lithium ion batteries.en
dc.description.sponsorshipNational Natural Science Foundation of China (20731003, 20901050); Shanghai Jiao Tong University (Shanghai Pujiang Program (09PJ1405700);en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationWang, K., Li, Z., Wang, Y., Liu, H., Chen, J., Holmes, J. and Zhou, H. (2010) 'Carbon nanocages with nanographene shell for high-rate lithium ion batteries', Journal of Materials Chemistry, 20(43), pp. 9748-9753. doi: 10.1039/C0JM01704Cen
dc.identifier.doi10.1039/C0JM01704C
dc.identifier.endpage9753en
dc.identifier.issn0959-9428
dc.identifier.journaltitleJournal of Materials Chemistryen
dc.identifier.startpage9748en
dc.identifier.urihttps://hdl.handle.net/10468/6689
dc.identifier.volume20en
dc.language.isoenen
dc.publisherRoyal Society of Chemistry (RSC)en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Research Frontiers Programme (RFP)/08/RFP/MTR1239/IE/Mesoporous Metal Oxides for Photovoltaic and Electrochromic Applications/en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Strategic Research Cluster/07/SRC/I1172/IE/SRC FORME: Functional Oxides and Related Materials for Electronics/en
dc.relation.urihttp://pubs.rsc.org/en/content/articlepdf/2010/jm/c0jm01704c
dc.rights© The Royal Society of Chemistry 2010en
dc.subjectLithiumen
dc.subjectAromatic hydrocarbonsen
dc.subjectCharge transferen
dc.subjectElectrochemical electrodesen
dc.subjectIonsen
dc.subjectLithium alloysen
dc.subjectLithium compoundsen
dc.subjectShells (structures)en
dc.subjectXyleneen
dc.subjectActive siteen
dc.subjectCarbon nanocagesen
dc.subjectCarbon shellsen
dc.subjectCatalytic decompositionen
dc.subjectCharge-transfer reactionsen
dc.subjectCycling lifeen
dc.subjectDiffusion distanceen
dc.subjectElectrochemical performanceen
dc.subjectFast electronsen
dc.subjectGalvanostatic cyclingen
dc.subjectHigh rateen
dc.subjectHigh specific surface areaen
dc.subjectLithium-ion batteryen
dc.subjectP-xyleneen
dc.subjectPorous networksen
dc.subjectRate performanceen
dc.subjectReversible capacityen
dc.subjectStructural featureen
dc.subjectSupercritical COen
dc.subjectVoid spaceen
dc.titleCarbon nanocages with nanographene shell for high-rate lithium ion batteriesen
dc.typeArticle (peer-reviewed)en
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