Indium oxide/carbon nanotube/reduced graphene oxide ternary nanocomposite with enhanced electrochemical supercapacitance

Chinnasamy Sengottaiyan, Ramasamy Jayavel, Rekha Goswami Shrestha, Thiyagu Subramani, Subrata Maji, Jung Ho Kim, Jonathan P. Hill, Katsuhiko Ariga, Lok Kumar Shrestha

Research output: Contribution to journalArticlepeer-review

59 Citations (Scopus)

Abstract

Electrochemical supercapacitance performance of a ternary nanocomposite composed of mesoporous indium oxide (In2O3) nanocube crystals (size 350 nm) embedded in carbon nanotubes (CNT) and reduced graphene oxide (RGO) prepared by hydrothermal method is reported. A glassy carbon electrode modified with the In2O3/CNT/RGO nanocomposite material exhibited excellent electrochemical performance with a large specific capacitance of 1273 F g11 at 5 mV s11 and 948 F g11 at 1 A g11. The composite electrode showed excellent cyclic stability without any capacity loss after 5000 charge/discharge cycles. Furthermore, 375% capacitance retention was observed at high scan rate of 200 mV s11. These results indicate that the novel mesoporous In2O3 cubes composited with π-electron rich conductive nanocarbons CNT and RGO would be useful as electrode material for advanced supercapacitors.

Original languageEnglish
Pages (from-to)521-528
Number of pages8
JournalBulletin of the Chemical Society of Japan
Volume92
Issue number3
DOIs
Publication statusPublished - 2019
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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