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One-step hydrothermal synthesis of GQDs-MoS2 nanocomposite with enhanced supercapacitive performance

  • Sara Moghimian
  • Parvaneh SangpourEmail author
Research Article
  • 7 Downloads
Part of the following topical collections:
  1. Capacitors

Abstract

In recent years, graphene quantum dots with unique physiochemical properties have received considerable research attention in many fields. In this report, as a novel approach toward improving the capacitance value of MoS2 electrode, GQDs-MoS2 nanocomposite thin film was synthesized through one-step hydrothermal process. The microstructure and surface morphology of both MoS2 and GQDs-MoS2 nanocomposite thin films were characterized by X-ray diffraction, Raman spectroscopy, field emission-scanning electron microscopy, and Fourier transform infrared spectroscopy. The electrochemical performances of MoS2 and GQDs-MoS2 nanocomposite thin films was thoroughly compared via Autolab potentiostat–galvanostat with the three-electrode system. The results indicated that GQDs-MoS2 nanocomposite thin film demonstrates enhanced specific capacitance of 380 F g−1 under the current density of 0.6 A g−1. Moreover, the MoS2-GQDs thin film exhibited the highest energy density of 38.47 Wh kg−1 at the Current density of 0.6 A g−1.

Graphic abstract

Keywords

Graphene quantum dots Nanocomposite Electrochemical performance Supercapacitors 

Notes

Supplementary material

10800_2019_1366_MOESM1_ESM.docx (28 kb)
Supplementary material 1 (DOCX 27 kb)

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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  1. 1.Department of Nanotechnology and Advanced MaterialsMaterials and Energy Research CentreKarajIran

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