Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Synthesis of SnO2 Nanotubes Via Electrospinning Process and Their Application to Lithium Ion Battery Anodes

전기방사법을 통한 주석산화물 나노튜브의 합성 및 리튬이차전지 음극으로의 응용

  • Lee, Young-In (Department of Fusion Chemical Engineering, Hanyang University) ;
  • Choa, Yong-Ho (Department of Fusion Chemical Engineering, Hanyang University)
  • 이영인 (한양대학교 융합화학공학과) ;
  • 좌용호 (한양대학교 융합화학공학과)
  • Received : 2012.06.12
  • Accepted : 2012.08.01
  • Published : 2012.08.28
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Abstract

$SnO_2$ nanotubes were successfully synthesized using an electrospinning technique followed by calcination in air. The nanotubes were the single phase nature of $SnO_2$ and consisted of approximately 14 nm nanocrystals. SEM and TEM characterizations demonstrated that uniform hollow fibers with an average outer diameter of around 124 nm and wall thickness of around 25 nm were successfully obtained. As anode materials for lithium ion batteries, the $SnO_2$ nanotubes exhibited excellent cyclability and reversible capacity of $580mAhg^{-1}$ up to 25 cycles at $100mAg^{-1}$ as compared to $SnO_2$ nanoparticles with a capacity of ${\sim}200mAhg^{-1}$. Such excellent performance of the $SnO_2$ nanotube was related to the one-dimensional hollow structure which acted as a buffer zone during the volume contraction and expansion of Sn.

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