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Pore-interconnected hollow (Sn,Ti)O 2 solid-solution nanoparticles for lithium-ion battery anode materials

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Title
Pore-interconnected hollow (Sn,Ti)O 2 solid-solution nanoparticles for lithium-ion battery anode materials
Author(s)
Um J.H.; Lim J.; Hengge K.; Scheu C.; Yoon W.-S.; Lee J.-K.; Yung-Eun Sung
Publication Date
2019-06
Journal
COMPOSITES PART B-ENGINEERING, v.166, no., pp.613 - 620
Publisher
ELSEVIER SCI LTD
Abstract
A series of hollow structured (Sn,Ti)O 2 solid-solutions with varying Sn content are prepared by a soft template method. Not only a complete incorporation of Sn 4+ into TiO 2 lattice but also a Sn–O–Ti bonding is identified, and morphologically, interconnected pores are confirmed between the hollow (Sn,Ti)O 2 solid-solution nanoparticles. In battery performance, along with enhanced lithium storage, consistent utilization of Sn in voluminous alloying/de-alloying reactions is demonstrated. Beyond the TiO 2 typically known as a stable anode material, the superior capacity retention of solid-solution rather containing Sn shows that the Sn–O–Ti bonding in (Sn,Ti)O 2 solid-solution leads to the synergy effect of increased energy density from Sn and stable capacity retention from Ti. © 2019 Elsevier Ltd.
URI
https://pr.ibs.re.kr/handle/8788114/6588
ISSN
1359-8368
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
Files in This Item:
[Composites Part B] Pore-interconnected hollow (Sn,Ti)O2 solid-solution nanoparticles for lithium-ion battery anode materials.pdfDownload

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