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

[1]. Liu, B., Q. Zhang, Z. Wang, et al., "Nitrogen and Sulfur-Codoped Porous Carbon Nanospheres with Hierarchical Micromesoporous Structures and an Ultralarge Pore Volume for High-Performance Supercapacitors". ACS Applied Materials & Interfaces. 12(7): p. 8225-8232, (2020). DOI: https://doi.org/10.1021/acsami.9b20473

[2]. Fan, W., C. Zhang, W.W. Tjiu, et al., "Graphene-Wrapped Polyaniline Hollow Spheres As Novel Hybrid Electrode Materials for Supercapacitor Applications". ACS Applied Materials & Interfaces. 5(8): p. 3382-3391, (2013). DOI: https://doi.org/10.1021/am4003827

[3]. Yang, X., Y. Li, P. Zhang, et al., "Hierarchical hollow carbon spheres: Novel synthesis strategy, pore structure engineering and application for micro-supercapacitor". Carbon. 157: p. 70-79, (2020). DOI: https://doi.org/10.1016/j.carbon.2019.10.008

[4]. Bavio, M.A., G.G. Acosta, and T. Kessler, "Polyaniline and polyaniline-carbon black nanostructures as electrochemical capacitor electrode materials". International Journal of Hydrogen Energy. 39(16): p. 8582-8589, (2014). DOI: https://doi.org/10.1016/j.ijhydene.2014.01.018

[5]. Huang, G., Q. Geng, B. Xing, et al., "Manganous nitrate -assisted potassium hydroxide activation of humic acid to prepare oxygen-rich hierarchical porous carbon as high-performance supercapacitor electrodes". Journal of Power Sources. 449: p. 227506, (2020). DOI: https://doi.org/10.1016/j.jpowsour.2019.227506

[6]. Zang, P., S. Gao, L. Dang, et al., "Green synthesis of holey graphene sheets and their assembly into aerogel with improved ion transport property". Electrochimica Acta. 212: p. 171-178, (2016). DOI: https://doi.org/10.1016/j.electacta.2016.06.146

[7]. Sethi, M., H. Bantawal, U.S. Shenoy, et al., "Eco-friendly synthesis of porous graphene and its utilization as high performance supercapacitor electrode material". Journal of Alloys and Compounds. 799: p. 256-266, (2019). DOI: https://doi.org/10.1016/j.jallcom.2019.05.302

[8]. Simon, P. and Y. Gogotsi, "Materials for electrochemical capacitors". Nature Materials. 7(11): p. 845-854, (2008). DOI: https://doi.org/10.1038/nmat2297

[9]. Wu, X., J. Zhou, W. Xing, et al., "High-rate capacitive performance of graphene aerogel with a superhigh C/O molar ratio". Journal of Materials Chemistry. 22(43): p. 23186-23193, (2012). DOI: https://doi.org/10.1039/c2jm35278h

[10]. Lee, S.P., G.A.M. Ali, H. Algarni, et al., "Flake size-dependent adsorption of graphene oxide aerogel". Journal of Molecular Liquids. 277: p. 175-180, (2019). DOI: https://doi.org/10.1016/j.molliq.2018.12.097

[11]. Zhao, G., C. Chen, D. Yu, et al., "One-step production of O-N-S co-doped three-dimensional hierarchical porous carbons for high-performance supercapacitors". Nano Energy. 47: p. 547-555, (2018). DOI: https://doi.org/10.1016/j.nanoen.2018.03.016

[12]. Wei, G., J. Yu, M. Gu, et al., "Dielectric relaxation and hopping conduction in reduced graphite oxide". Journal of Applied Physics. 119: p. 224102, (2016). DOI: https://doi.org/10.1063/1.4953357

[13]. Chaunchaiyakul, S., T. Yano, K. Khoklang, et al., "Nanoscale analysis of multiwalled carbon nanotube by tip-enhanced Raman spectroscopy". Carbon. 99: p. 642-648, (2016). DOI: https://doi.org/10.1016/j.carbon.2015.12.090

[14]. Thommes, M., K. Kaneko, A.V. Neimark, et al., "Physisorption of gases, with special reference to the evaluation of surface area and pore size distribution (IUPAC Technical Report)". 87(9-10): p. 1051-1069, (2015). DOI: https://doi.org/10.1515/pac-2014-1117

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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.

Issue

Vol. 89 (2023)

Section

Research Articles

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