Journal
JOURNAL OF ENERGY STORAGE
Volume 46, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.est.2021.103904
Keywords
Polypyrrole; Tin oxide quantum dots; Graphene oxide; Specific capacitance; Electrochemical impedance spectra; Supercapacitors; Galvanostatic charging-discharging
Categories
Funding
- Govt. of India
- CENSE
- IISC Bangalore, India
Ask authors/readers for more resources
Tin oxide quantum dots/graphene oxide/polypyrrole (SGP) ternary composites are unique materials with novel properties suitable for supercapacitor electrodes in high energy storage applications. The SGP composites exhibit good optical, structural, and electrochemical properties, and the fabricated supercapacitor devices demonstrate high energy density and power density even under high current density, making them highly promising for portable electronic storage devices.
Tin oxide quantum dots/graphene oxide/polypyrrole (SGP) ternary composites are unique materials with novel properties like large specific surface area and cyclic stability that are needed to develop the supercapacitor electrodes for high energy storage applications. The optical, structural, electrochemical properties of SGP1 and SGP3 composites (The different masses of graphene oxide (GO) accordingly 0.05 g, 0.15 g produced the SGP ternary composites) were characterized by using UV-Visible spectra (UV-Vis.), Raman spectroscopy, Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), Transmission Electron Microscopy (TEM), and Impedance Spectroscopy techniques. Fabrication of supercapacitor device using SGP composite electrode with PVA/KOH gel electrolyte as separator and examined the supercapacitor performance. As an outcome, the maximum specific capacitance achieved by the SGP ternary composite is 928.56 F g(-1) at 40 mV s(-1). The assembled SGP3 supercapacitor device is retained the energy density of 25.6 Wh kg(-1) with a high-power density of 4098 W kg(-1) even after 11,000 successive galvanostatic charging-discharging (GCD) cycles at current density of 1 A g(-1). These results demonstrate that ternary composite material is highly promising for portable electronic storage device applications.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available