SnO2 nanotube arrays embedded in a carbon layer for high-performance lithium-ion battery applications

Ji Hyun Um, Seung-Ho Yu, Yong Hun Cho, Yung Eun Sung

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A facile strategy for preparing one-dimensional (1D) SnO2 nanotube arrays embedded in a carbon layer (C-SnO2 NTs) has been developed via a sol-gel method using polycarbonate (PC) as a template. The introduction of a carbon layer (carbonized from a PC membrane) at the top of SnO2 nanotube arrays results in the SnO2 nanotubes standing on the current collector and preserving their 1D structure without aggregation between each other, which enables their direct application to the anode of lithium-ion batteries. The binder- and carbon-free C-SnO2 NTs as a self-supporting anode exhibits a stable and high reversible capacity of 500 mA h g-1 at 0.1 A g-1 after 40 cycles. The improved Li ion storage and stable capability are attributed to the 1D hollow structure, alleviating the large volume changes of SnO2 and enhancing electron and Li ion diffusion transport in the nanotubes.

Original languageEnglish
Pages (from-to)2541-2546
Number of pages6
JournalNew Journal of Chemistry
Volume39
Issue number4
DOIs
Publication statusPublished - 2015 Apr 1
Externally publishedYes

Fingerprint

polycarbonate
Nanotubes
Carbon
Polycarbonates
Anodes
Ions
Sol-gel process
Binders
Agglomeration
Membranes
Lithium-ion batteries
Electrons

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Materials Chemistry

Cite this

SnO2 nanotube arrays embedded in a carbon layer for high-performance lithium-ion battery applications. / Um, Ji Hyun; Yu, Seung-Ho; Cho, Yong Hun; Sung, Yung Eun.

In: New Journal of Chemistry, Vol. 39, No. 4, 01.04.2015, p. 2541-2546.

Research output: Contribution to journalArticle

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