Synergistic g-c3n4/v2o5/pani composite for electrochemical energy storage

Title

Synergistic g-c3n4/v2o5/pani composite for electrochemical energy storage

Creator

Aswathi V.P.; Sreeja P.B.

Description

This work illustrates the synthesis of a ternary hybrid composite (g-C3N4/V2O5/PANI) from graphitic carbon nitride, vanadium pentoxide, and Polyaniline via hydrothermal method followed by in-situ polymerization. Morphological analysis confirms the integration of vanadium pentoxide (V2O5) and polyaniline (PANI) within the interlayer spaces of graphitic materials. The resultant hybrid composite structure facilitates rapid diffusion and ion movement at the electrode-electrolyte interface. Additionally, incorporating V2O5 within a polymer matrix alongside graphitic material generates diverse electrical profiles, enhancing electrochemical performance. The electrochemical characteristics of g-C3N4/V2O5/PANI composites were examined by Cyclic voltammetry (CV), Galvanostatic charge-discharge (GCD), and Electrochemical impedance spectroscopy (EIS). The GCD analysis shows that the g-C3N4/V2O5/PANI composite exhibits a specific capacitance of 880 Fg?1 at a current density of 1 Ag?1, retaining 78 % of its initial capacitance after executing 2000 cycles at 3 Ag?1. Furthermore, a symmetric supercapacitor was constructed using g-C3N4/V2O5/PANI composite material as the electrode, showing a capacitance of 246 Fg?1 when measured at an input current density of 1 Ag?1. This study demonstrates g-C3N4/V2O5/PANI is a potential electrode material for supercapacitor application. 2024

Source

Journal of Energy Storage, Vol-107

Date

2025-01-01

Publisher

Elsevier Ltd

Subject

Graphitic carbon nitride; Hybrid materials; Polyaniline; Supercapacitor; Vanadium pentoxide

Coverage

Aswathi V.P., Department of Chemistry, School of Sciences, Christ University, Central Campus, Karnataka, Bengaluru, 560029, India; Sreeja P.B., Department of Chemistry, School of Sciences, Christ University, Central Campus, Karnataka, Bengaluru, 560029, India

Rights

Restricted Access

Relation

ISSN: 2352152X

Format

Online

Language

English

Type

Article

Identifier

https://doi.org/10.1016/j.est.2024.114993

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