A facile hydrazine-assisted hydrothermal method for the deposition of monodisperse SnO 2 nanoparticles onto graphene for lithium ion batteries

Seung Keun Park, Seung-Ho Yu, Nicola Pinna, Seunghee Woo, Byungchul Jang, Young Hoon Chung, Yong Hun Cho, Yung Eun Sung, Yuanzhe Piao

Research output: Contribution to journalArticle

105 Citations (Scopus)

Abstract

In this manuscript, we introduce a facile hydrothermal method for the controlled growth of SnO 2 nanoparticles onto graphene oxide. Hydrazine plays a fundamental role in controlling the formation and crystallization of SnO 2 nanoparticles, and the reduction of graphene oxide to graphene. The SnO 2-graphene composite consists of 3-4 nm monodisperse SnO 2 nanocrystals homogeneously dispersed at the surface of graphene. It is demonstrated that the composite can accommodate the large volume change of SnO 2 which occurs during lithiation-delithiation cycles. When used as an anode material for lithium ion batteries, it exhibits a first discharge capacity of 1662 mA h g -1, which rapidly stabilizes and still remains at 626 mA h g -1 even after 50 cycles, when cycled at a current density of 100 mA g -1. Even at the very high current density of 3200 mA g -1, the composite displays a stable capacity of 383 mA h g -1 after 50 cycles.

Original languageEnglish
Pages (from-to)2520-2525
Number of pages6
JournalJournal of Materials Chemistry
Volume22
Issue number6
DOIs
Publication statusPublished - 2012 Feb 14
Externally publishedYes

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hydrazine
Graphite
Hydrazine
Graphene
Nanoparticles
Oxides
Composite materials
Current density
Crystallization
Nanocrystals
Anodes
Display devices
Lithium-ion batteries

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Chemistry

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A facile hydrazine-assisted hydrothermal method for the deposition of monodisperse SnO 2 nanoparticles onto graphene for lithium ion batteries. / Park, Seung Keun; Yu, Seung-Ho; Pinna, Nicola; Woo, Seunghee; Jang, Byungchul; Chung, Young Hoon; Cho, Yong Hun; Sung, Yung Eun; Piao, Yuanzhe.

In: Journal of Materials Chemistry, Vol. 22, No. 6, 14.02.2012, p. 2520-2525.

Research output: Contribution to journalArticle

Park, Seung Keun ; Yu, Seung-Ho ; Pinna, Nicola ; Woo, Seunghee ; Jang, Byungchul ; Chung, Young Hoon ; Cho, Yong Hun ; Sung, Yung Eun ; Piao, Yuanzhe. / A facile hydrazine-assisted hydrothermal method for the deposition of monodisperse SnO 2 nanoparticles onto graphene for lithium ion batteries. In: Journal of Materials Chemistry. 2012 ; Vol. 22, No. 6. pp. 2520-2525.
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AU - Jang, Byungchul

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