Reduced graphene oxide aerogel for supercapacitor electrode

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Authors

  • Ngo Van Hoanh Institute of Chemistry and Materials, Academy of Military Science and Technology
  • Phung Xuan Thinh Deparment of Education, Academy of Military Science and Technology
  • Le Huu Thanh Institute of Chemistry and Materials, Academy of Military Science and Technology
  • Le Trung Hieu Institute of Chemistry and Materials, Academy of Military Science and Technology
  • Ngo Tien Quyet VNU University of Science
  • Nguyen Tran Hung (Corresponding Author) Institute of Chemistry and Materials, Academy of Military Science and Technology

DOI:

https://doi.org/10.54939/1859-1043.j.mst.89.2023.67-72

Keywords:

Graphene aerogel; Supercapacitor; Capacity; Electrode.

Abstract

 In this study, the rGO aerogel material was successfully fabricated by freeze-drying combined with high-temperature reduction method. The characteristics of rGO aerogel were investigated by modern techniques such as SEM-EDX, XRD, Raman, N2 adsorption and desorption. Electrochemical properties were studied through cyclic potential scanning (CV), charge-discharge (GCD) and electrochemical Imdependance Spectroscopy (EIS) methods in 6M KOH electrolyte solution. Research results show that rGO aerogel has a large specific surface area and pore volume of 162.4 m2/g and 0.237 cm3/g, respectively, and a large specific capacitance of 90 F/g at a current density of 0.1. A/g and long charge-discharge life with specific capacitance reaching 87.5% after 500 charge-discharge cycles.

References

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Published

25-08-2023

How to Cite

Ngô, V. H., Phung Xuan Thinh, Le Huu Thanh, Le Trung Hieu, Ngo Tien Quyet, and Nguyen Tran Hung. “Reduced Graphene Oxide Aerogel for Supercapacitor Electrode”. Journal of Military Science and Technology, vol. 89, no. 89, Aug. 2023, pp. 67-72, doi:10.54939/1859-1043.j.mst.89.2023.67-72.

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