Synthesis of porous g-C3N4 doped vanadyl phosphate for supercapattery application

Romiyo Justinabraham, Arulappan Durairaj, Subramanian Ramanathan, Asir Obadiah, Ramachandran John wesley, Xiaomeng Lv, Samuel Vasanthkumar

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Layer structured carbon materials are widely used in energy storage applications because of their good conductivity and large surface area. Layered porous g-C3N4 is a promising energy storage material due to its specific properties of high charge mobility, mechanical stability and wettability. In order to overcome the low specific capacitance and low conductivity of g-C3N4, it was doped with the highly conductive Vanadyl phosphate (VP) by the hydrothermal method. The different synthesized materials were characterised using UV−Vis-DRS spectroscopy, Fourier transform infra red spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy techniques (TEM) and energy dispersive x-ray spectroscopy (EDS). The electrochemical investigation was carried out by cyclic voltammetery (CV), Galvanostatic charge discharge (GCD) and electrochemical impedance spectroscopy (EIS) studies. The synthesized C3N4/VP composite material exhibited excellent capacity value of 498 Cg−1 and also showed a good cyclic stability up to 5000 cycles of charge discharge, when compared to the individual materials g-C3N4and VP. The entire study clearly shows that the Vanadium based composite is a powerful storage material which has a great scope to be used for future energy needs.

Original languageEnglish
Article number102786
JournalJournal of Energy Storage
Volume40
DOIs
StatePublished - Aug 2021
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2021

Funding

The authors thank the Management and Administration of Karunya Institute of Technology and sciences for their support and help. The authors are grateful to Department of Science and Technology, Govt. of India for their financial support (DST/TDT/WM/2019/73G).

FundersFunder number
Department of Science and Technology, Ministry of Science and Technology, IndiaDST/TDT/WM/2019/73G

    Keywords

    • Energy storage
    • Specific capacity
    • Supercapattery
    • g-CN

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