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Journal of Electronic Materials

, Volume 48, Issue 2, pp 873–878 | Cite as

Electrochemically Anodized Ultralong TiO2 Nanotubes for Supercapacitors

  • Jyoti V. Patil
  • Sawanta S. Mali
  • Jasmin S. Shaikh
  • Chang Kook Hong
  • Pramod S. PatilEmail author
Article
  • 23 Downloads

Abstract

TiO2 nanotubes for use in supercapacitors have been successfully deposited onto titanium foil by electrochemical anodization for 4 h at 60 V and their morphological and structural characteristics investigated by field-emission scanning electron microscopy (FE-SEM), energy-dispersive x-ray spectroscopy, x-ray diffraction (XRD) analysis, and electrochemical measurements. FE-SEM revealed TiO2 nanotubes with diameter of ∼ 80 nm and length of 18 μm. XRD confirmed formation of TiO2 phase with anatase crystal structure. Electrochemical measurements revealed large specific capacitance of 33.7 F g−1, high energy density of 41.75 W h kg−1 at power density of 176 W kg−1, and long-term cycling performance with 72% capacitance retention after 2000 cycles for the TiO2 nanotubes. These results indicate that such TiO2 nanotubes have potential to become a promising electrode material for use in energy storage devices such as supercapacitors and batteries due to their high chemical, thermal, and electrochemical stability with good charge storage capability.

Keywords

TiO2 nanotubes electrochemical anodization supercapacitors 

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Notes

Acknowledgments

J.V.P. is grateful to the University Grants Commission (UGC), New Delhi, India for financial assistance through BSR Junior Research Fellowship Grant No. F. NO.25-1/2014-15(BSR) (7-167/2009/BSR). This work was also supported by Korea Research Fellowship Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT, and Future Planning (2016H1D3 A1909289) for an outstanding overseas young researcher. This work was also supported by Priority Research Centers Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science, and Technology (2018R1A6A1A03024334).

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Copyright information

© The Minerals, Metals & Materials Society 2018

Authors and Affiliations

  • Jyoti V. Patil
    • 1
  • Sawanta S. Mali
    • 2
  • Jasmin S. Shaikh
    • 1
  • Chang Kook Hong
    • 2
  • Pramod S. Patil
    • 1
    Email author
  1. 1.Thin Film Materials Laboratory, Department of PhysicsShivaji UniversityKolhapurIndia
  2. 2.Polymer Energy Materials Laboratory, Department of Advanced Chemical EngineeringChonnam National UniversityGwangjuKorea

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