FigsharePub Date : 2017-05-11DOI: 10.1021/acsami.7b03705.s001
Shuai Wang (109515), Liyi Shi (1366401), Guorong Chen (1805383), Chaoqun Ba (4018952), Zhuyi Wang (1459372), Jiefang Zhu (510141), Yin Zhao (1459375), Meihong Zhang (333837), Shuai Yuan (305841)
{"title":"InnSitu Synthesis of Tungsten-Doped SnO<sub>2</sub> and Graphene Nanocompositesnfor High-Performance Anode Materialsnof Lithium-Ion Batteries","authors":"Shuai Wang (109515), Liyi Shi (1366401), Guorong Chen (1805383), Chaoqun Ba (4018952), Zhuyi Wang (1459372), Jiefang Zhu (510141), Yin Zhao (1459375), Meihong Zhang (333837), Shuai Yuan (305841)","doi":"10.1021/acsami.7b03705.s001","DOIUrl":"https://doi.org/10.1021/acsami.7b03705.s001","url":null,"abstract":"The composite of tungsten-doped SnO<sub>2</sub> and reduced graphenenoxide was synthesized through a simple one-pot hydrothermal method.nAccording to the structural characterization of the composite, tungstennions were doped in the unit cells of tin dioxide rather than simplynattaching to the surface. Tungsten-doped SnO<sub>2</sub> was in situngrown on the surface of graphene sheet to form a three-dimensionalnconductive network that enhanced the electron transportation and lithium-ionndiffusion effectively. The issues of SnO<sub>2</sub> agglomerationnand volume expansion could be also avoided because the tungsten-dopednSnO<sub>2</sub> nanoparticles were homogeneously distributed on angraphene sheet. As a result, the nanocomposite electrodes of tungsten-dopednSnO<sub>2</sub> and reduced graphene oxide exhibited an excellentnlong-term cycling performance. The residual capacity was still asnhigh as 1100 mA h g<sup>–1</sup> at 0.1 A g<sup>–1</sup> after 100 cycles. It still remained at 776 mA h g<sup>–1</sup> after 2000 cycles at the current density of 1A g<sup>–1</sup>.","PeriodicalId":522658,"journal":{"name":"Figshare","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147901210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}