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Mika Erik Tapio Sillanpää

TiO2 nanorods decorated on RGO sheet for an excellent energy storage performance

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  • Sreenivasa Kumar Godlaveeti, Yogi Vemana University
  • ,
  • Hussen Maseed, Malla Reddy University
  • ,
  • Dadamiah PMD Shaik, Lords Institute of Engineering and Technology
  • ,
  • Essam A. Al-Ammar, King Saud University
  • ,
  • Ammar Mohamed Tighezza, King Saud University
  • ,
  • Mika Sillanpaa
  • Adinarayana Reddy Somala, Yogi Vemana University
  • ,
  • Ramamanohar Reddy Nagireddy, Yogi Vemana University

Herein, we report nanocomposite of titanium dioxide (TiO2) nanorods decorated reduced graphene oxide (TiO2/RGO) nanocomposite prepared using the simple, one-pot hydrothermal route for electrode material in supercapacitor applications. A systematic comparison study was carried out for the TiO2 nanorods coated on graphite foil in presence of alkaline media 3 M KOH, NaCl, and Na2SO4 using the three-electrode method. The TiO2/RGO composite shows an excellent specific capacitance (Csp) of 330 Fg-1 at the discharge current density 0.5 Ag-1 in presence of 3 M KOH electrolyte solution. The obtained highest specific capacitance values in order by various electrolytes are observed as KOH > NaCl > Na2SO4. The long-term cycle stability of charge and discharge cycle at current density 0.5 Ag-1 over 1000 cycles and only 8% decay in the specific capacitance of TiO2/RGO nanocomposite was observed in 3 M KOH electrolyte. The improved electrochemical performance TiO2/RGOcomposite in presence of KOH electrolyte is shown to be the most suitable electrode for the supercapacitors.

Original languageEnglish
JournalInternational Journal of Hydrogen Energy
Pages (from-to)15571-15582
Number of pages12
Publication statusPublished - Apr 2022

Bibliographical note

Publisher Copyright:
© 2022 Hydrogen Energy Publications LLC

    Research areas

  • Graphene, Graphite foil, Hydrothermal, Supercapacitor, TiO nanorods

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