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Advanced Materials

Scalable Fabrication of Silicon Nanotubes and their Application to Energy Storage

Authors

  • Jung-Keun Yoo,

    1. Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
    Current affiliation:
    1. These authors contributed equally to this work.
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  • Jongsoon Kim,

    1. Dept. Materials Science and Engineering, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea
    Current affiliation:
    1. These authors contributed equally to this work.
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  • Yeon Sik Jung,

    Corresponding author
    1. Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
    • Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
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  • Kisuk Kang

    Corresponding author
    1. Dept. Materials Science and Engineering, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea
    • Dept. Materials Science and Engineering, Seoul National University, 599 Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea.
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Abstract

The facile synthesis of silicon nanotubes using a surface sol–gel reaction on pyridine nanowire templates is reported and their performance for energy storage is investigated. Organic–inorganic hybrid pyridine/silica core-shell nanowires prepared using surface sol–gel reaction were converted to silica nanotubes by pyrolysis in air; this was followed by the reduction to silicon nanotubes via magnesiothermic reaction. The electrochemical activity of the obtained silicon nanotubes showed excellent cycle stability, suggesting that the hollow one-dimensional structure would be a good candidate for a high-capacity anode for a lithium ion battery.

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