TiO2-entrained tubular carbon nanofiber and its electrochemical properties in the rechargeable Na-ion battery system

Yuzo Ohata; Jumi Yun; Ryohei Miyamae; Taegon Kim; Jandee Kim; Min Hyun Seo; Ayuko Kitajo; Jin Miyawaki; Shigeto Okada; Seong Ho Yoon

doi:10.1016/j.applthermaleng.2014.06.066

TiO₂-entrained tubular carbon nanofiber and its electrochemical properties in the rechargeable Na-ion battery system

Yuzo Ohata, Jumi Yun, Ryohei Miyamae, Taegon Kim, Jandee Kim, Min Hyun Seo, Ayuko Kitajo, Jin Miyawaki, Shigeto Okada, Seong Ho Yoon

Department of Advanced Device Materials

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

Well-defined "peapod" nano-carbon structure of TiO₂ nanoparticles entrained tubular carbon nanofiber with nano-gate channels (TNG-TCNF) was first designed and fabricated through the simple low-temperature impregnation of titanium tetrachloride to tubular carbon nanofiber with nano-gate channels (NG-TCNF) for the application as an effective anode material for Na-ion batteries. Many nano-gated channels on the NG-TCNF walls effectively facilitated the deposition of TiO₂ nanoparticles inside its tube. The maximum entrained mass ratio of the TiO₂ nanoparticles in the NG-TCNF was evaluated to 35 wt%. The prepared TiO₂ entrained NG-TCNF exhibited remarkable discharge capacity of 120 mAh/g as anode for Na-ion battery with a relatively stable cycle-ability compared to those of bare TiO₂, confirming the effective role of gateway for charge/discharge of Na ions.

Original language	English
Pages (from-to)	309-314
Number of pages	6
Journal	Applied Thermal Engineering
Volume	72
Issue number	2
DOIs	https://doi.org/10.1016/j.applthermaleng.2014.06.066
Publication status	Published - Nov 22 2014

All Science Journal Classification (ASJC) codes

Energy Engineering and Power Technology
Industrial and Manufacturing Engineering

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TiO₂-entrained tubular carbon nanofiber and its electrochemical properties in the rechargeable Na-ion battery system. / Ohata, Yuzo; Yun, Jumi; Miyamae, Ryohei; Kim, Taegon; Kim, Jandee; Seo, Min Hyun; Kitajo, Ayuko; Miyawaki, Jin ; Okada, Shigeto ; Yoon, Seong Ho.

In: Applied Thermal Engineering, Vol. 72, No. 2, 22.11.2014, p. 309-314.

Research output: Contribution to journal › Article › peer-review

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abstract = "Well-defined {"}peapod{"} nano-carbon structure of TiO2 nanoparticles entrained tubular carbon nanofiber with nano-gate channels (TNG-TCNF) was first designed and fabricated through the simple low-temperature impregnation of titanium tetrachloride to tubular carbon nanofiber with nano-gate channels (NG-TCNF) for the application as an effective anode material for Na-ion batteries. Many nano-gated channels on the NG-TCNF walls effectively facilitated the deposition of TiO2 nanoparticles inside its tube. The maximum entrained mass ratio of the TiO2 nanoparticles in the NG-TCNF was evaluated to 35 wt%. The prepared TiO2 entrained NG-TCNF exhibited remarkable discharge capacity of 120 mAh/g as anode for Na-ion battery with a relatively stable cycle-ability compared to those of bare TiO2, confirming the effective role of gateway for charge/discharge of Na ions.",

author = "Yuzo Ohata and Jumi Yun and Ryohei Miyamae and Taegon Kim and Jandee Kim and Seo, {Min Hyun} and Ayuko Kitajo and Jin Miyawaki and Shigeto Okada and Yoon, {Seong Ho}",

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AU - Miyamae, Ryohei

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AU - Kim, Jandee

AU - Seo, Min Hyun

AU - Kitajo, Ayuko

AU - Miyawaki, Jin

AU - Okada, Shigeto

AU - Yoon, Seong Ho

N1 - Funding Information: This study was carried out within the framework of the JST-ALCA program. The authors sincerely appreciate the financial support of Japan Science and Technology Corporation .

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