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dc.contributor.authorWang, Guang
dc.contributor.authorShao, Meng
dc.contributor.authorDing, Huarui
dc.contributor.authorQi, Ying
dc.contributor.authorLian, Jiabiao
dc.contributor.authorLi, Sheng
dc.contributor.authorQiu, Jingxia
dc.contributor.authorLi, Huaming
dc.contributor.authorHuo, Fengwei
dc.description.abstractSiO2 is regarded as one of the most promising anode materials for Li‐ion batteries due to its high capacity, low cost and other merits. However, the poor conductivity and the volume change are still hindering its practical applications. In this work, a rambutan‐inspired structure is designed to fabricate amorphous SiO2@N, P co‐doped porous carbon frameworks from biomass. The carbon shell could connect with each other, providing good conductivity. After partially etching of the SiO2, the yolk‐shell structure could buffer the volume changes of SiO2 during the charge/discharge processes without destroying the conducting shell. Besides, N, P doping and graphite nano crystallites in the frameworks could also offer more active sites for Li+ storage. As a result, the composite can not only exhibit excellent rate performance nearly 300 mAh g−1 at a current density of 2000 mA g−1, but also deliver a surprisingly stable reversible capacity of 373 mAh g−1 over 1000 cycles at the current density of 500 mA g−1 with the Coulombic efficiency beyond 99%. Considering the facile preparation and satisfactory lithium storage abilities, this composite design could be able to extend for practical battery application.
dc.relation.ispartofjournalAngewandte Chemie International Edition
dc.subject.fieldofresearchChemical Sciences
dc.subject.keywordsScience & Technology
dc.subject.keywordsPhysical Sciences
dc.subject.keywordsChemistry, Multidisciplinary
dc.subject.keywordsactive sites
dc.titleMultiple Active Sites of Carbon for High-Rate Surface-Capacitive Sodium-Ion Storage
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationWang, G; Shao, M; Ding, H; Qi, Y; Lian, J; Li, S; Qiu, J; Li, H; Huo, F, Multiple Active Sites of Carbon for High-Rate Surface-Capacitive Sodium-Ion Storage, Angewandte Chemie International Edition, 2019, 58 (38), pp. 13584-13589
gro.hasfulltextNo Full Text
gro.griffith.authorLi, Sheng
gro.griffith.authorQiu, Jingxia

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