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Facile synthesis and electrochemical investigation of graphitic carbon nitride/manganese dioxide incorporated polypyrrole nanocomposite for high-performance energy storage applications

  • Joseph Raj Xavier ORCID logo EMAIL logo
Published/Copyright: April 30, 2024
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Journal of Polymer Engineering
From the journal Journal of Polymer Engineering Volume 44 Issue 6

Abstract

Manganese dioxide (MnO2) nanoparticles were modified by graphitic carbon nitride (GCN) and polylpyrrole (Ppy) to enhance their electrochemical performance. The surface influence, crystalline structure, and electrochemical performance of the Ppy/GCN/MnO2 material were characterized and compared with those of pristine MnO2. It is found that surface modification can improve the structural stability of MnO2 without decreasing its available specific capacitance. The electrochemical properties of synthesized Ppy/GCN/MnO2 electrode were evaluated using cyclic voltammetry (CV) and AC impedance techniques in 5 M KOH electrolyte. Specific capacitances of 486, 815, 921, and 1377 F/g were obtained for MnO2, Ppy/MnO2, GCN/MnO2, and Ppy/GCN/MnO2, respectively, at 5 A/g. This improvement is attributed to the synergistic effect of GCN and Ppy in the Ppy/GCN/MnO2 electrode material. The Ppy/GCN/MnO2 electrode in KOH has average specific energy and specific power densities of 172 Wh kg−1 and 2065 W kg−1, respectively. Only 2 % of the capacitance’s initial value is lost after 10,000 cycles. The resulting Ppy/GCN/MnO2 nanocomposite had very stable and porous layered structures. This work demonstrates that Ppy/GCN/MnO2 nanomaterials exhibit good structural stability and electrochemical performance and are good materials for supercapacitor applications.

Keywords: nanocomposite; supercapacitor; electrochemical performance; specific capacitance; energy storage
Corresponding author: Joseph Raj Xavier, Department of Chemistry, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai 602105, Tamil Nadu, India, E-mail:

  1. Research ethics: Not applicable.

  2. Informed consent: Not applicable.

  3. Author contributions: The author has accepted responsibility for the entire content of this manuscript and approved its submission.

  4. Competing interests: The author states no conflict of interest.

  5. Research funding: None declared.

  6. Data availability: The raw data can be obtained on request from the corresponding author.

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Supplementary Material

This article contains supplementary material (https://doi.org/10.1515/polyeng-2024-0025).

Received: 2024-01-26
Accepted: 2024-04-15
Published Online: 2024-04-30
Published in Print: 2024-07-26

© 2024 Walter de Gruyter GmbH, Berlin/Boston

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https://doi.org/10.1515/polyeng-2024-0025
Keywords for this article
nanocomposite; supercapacitor; electrochemical performance; specific capacitance; energy storage

Articles in the same Issue

  1. Frontmatter
  2. Material Properties
  3. Enhanced interlaminar structure and dynamic mechanical properties of Tectona grandis fiber (TGF)/polypropylene fiber (PPF)/carbon nanotube (CNT) nano composite prepared solid dipping coating process
  4. Molecular dynamics study on friction of polymer material polyoxymethylene (POM)
  5. The effect of clay modification on the structure, dielectric behaviour and mechanical properties of PVDF/PMMA/CTAMag polymer nanocomposites as potential flexible performance materials
  6. Preparation and Assembly
  7. Preparing conductive polymer-based adsorbent with better cupric ion adsorption efficiency by monomer precursor cross-linking method
  8. Facile synthesis and electrochemical investigation of graphitic carbon nitride/manganese dioxide incorporated polypyrrole nanocomposite for high-performance energy storage applications
  9. Preparation and properties of acrylate/polyvinyl alcohol self-healing hydrogels based on hydrogen bonds and coordination bonds
  10. Engineering and Processing
  11. Study on the photodegradation behaviors of liquid crystal display (LCD) used optical cellulose triacetate films
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