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In Situ Synthesis o...
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Wang, ShuaiShanghai Univ
(författare)
In Situ Synthesis of Tungsten-Doped SnO2 and Graphene Nanocomposites for High-Performance Anode Materials of Lithium-Ion Batteries
- Artikel/kapitelEngelska2017
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2017-05-11
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AMER CHEMICAL SOC,2017
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LIBRIS-ID:oai:DiVA.org:uu-328717
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-328717URI
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https://doi.org/10.1021/acsami.7b03705DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:art swepub-publicationtype
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The composite of tungsten-doped SnO2 and reduced graphene oxide was synthesized through a simple one pot hydrothermal method. According to the structural characterization of the composite, tungsten ions were doped in the unit cells of tin dioxide rather than simply attaching to the surface. Tungsten-doped SnO2 was in situ grown on the surface of graphene sheet to form a three-dimensional conductive network that enhanced the electron transportation and lithium-ion diffusion effectively. The issues of SnO2 agglomeration and volume expansion could be also avoided because the, tungsten-doped SnO2 nanoparticles were homogeneously distributed on a graphene sheet. As a result, the nanocomposite electrodes of tungsten-doped SnO2 and reduced graphene oxide exhibited an excellent long-term cycling performance. The residual capacity was still as high as 1100 mA h g(-1) at 0.1 A g(-1) after 100 cycles. It still remained at 776 mA h g(-1) after 2000 cycles at the current density of lA g(-1).
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Shi, LiyiShanghai Univ
(författare)
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Chen, Guorong
(författare)
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Ba, ChaoqunShanghai Univ
(författare)
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Wang, ZhuyiShanghai Univ
(författare)
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Zhu, Jie-FangUppsala universitet,Strukturkemi(Swepub:uu)zhuji179
(författare)
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Zhao, YinShanghai Univ
(författare)
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Zhang, MeihongShanghai Univ
(författare)
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Yuan, ShuaiShanghai Univ
(författare)
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Shanghai UnivStrukturkemi
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:ACS Applied Materials and Interfaces: AMER CHEMICAL SOC9:20, s. 17163-171711944-82441944-8252
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