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dc.contributor.authorWang, J.
dc.contributor.authorZhou, Y.
dc.contributor.authorShao, Zongping
dc.date.accessioned2017-01-30T13:24:59Z
dc.date.available2017-01-30T13:24:59Z
dc.date.created2014-10-08T01:14:47Z
dc.date.issued2013
dc.identifier.citationWang, J. and Zhou, Y. and Shao, Z. 2013. Porous TiO2(B)/anatase microspheres with hierarchical nano and microstructures for high-performance lithium-ion batteries. Electrochimica Acta. 97: pp. 386-392.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/31361
dc.identifier.doi10.1016/j.electacta.2013.03.015
dc.description.abstract

Novel hierarchical porous TiO2(B)/anatase microspheres have been prepared by a facile solvothermal approach and evaluated as anode materials for advanced lithium-ion battery applications. The obtained porous microspheres, with diameters ranging from 2.5 to 5.5 micrometers, are assembled by porous TiO2 nanosheets with the lateral size of a few micrometers and thickness of ~13 nm; whilst, the nanosheets are formed by aggregations of nanosized primary TiO2 crystallites (~5–7 nm). The hierarchical porous structures are verified by BET test results with a typical type-IV isotherm curve, a high surface area (~186.2 m2 g-1) and two kinds of pores (~4 and 8.3 nm). The hierarchical porous TiO2 microspheres present excellent electrochemical performance with high Li storage capacity and excellent high-rate cycling capability (a specific capacity of 117 mAh g-1 at the rate of 4000 mA g-1 after 4500 cycles), which might be attributed to the enhanced Li+ diffusion and electronic conductivity induced by the hierarchical microstructures, the TiO2(B)/anatase heterojunction, and the pseudocapacitance of TiO2(B). Such hierarchical porous materials might be promising for applications in advanced power type lithium-ion batteries.

dc.publisherPergamon
dc.subjectHierarchical microstructure
dc.subjectLithium-ion battery
dc.subjectTitania
dc.subjectPorous microsphere
dc.subjectAnode
dc.titlePorous TiO2(B)/anatase microspheres with hierarchical nano and microstructures for high-performance lithium-ion batteries
dc.typeJournal Article
dcterms.source.volume97
dcterms.source.startPage386
dcterms.source.endPage392
dcterms.source.issn0013-4686
dcterms.source.titleElectrochimica Acta
curtin.accessStatusFulltext not available


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