Abstract
In this work, we have fabricated pseudocapacitor electrodes with 2D materials, including (Bi2WO6) and graphitic carbon nitride (g-C3N4)-based sandwich-like heterostructure by facile hydrothermal method. The synthesized Bi2WO6/g-C3N4 heterostructure nanocomposites were probed with different characterization techniques through X-ray diffraction (XRD), Raman spectroscopy, field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM) and X-ray photon spectroscopy (XPS). The combination of Bi2WO6 and Bi2WO6-g-C3N4 created a synergistic and complemental effect, which enhanced the electrochemical performance. Bi2WO6-g-C3N4-based electrode exhibited a specific capacitance of 158 mF/g at a current density of 1 mA/cm2. Binary nanocomposites-based electrodes displayed enriched capacity retention (90%) indicating better supercapacitive performance.
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The datasets used and analysed during the current study are available from the corresponding author upon reasonable request.
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Acknowledgements
The authors are thankful to the management of SRM Institute of Science and Technology for the financial support through the SEED and START-UP Research grant. Dr. V.S. Manikandan thanks SRMIST for the post-doctoral fellowship.
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VSM: conception and design, material preparation, writing—original draft preparation, KG: writing—review editing, MS: data collection and analysis, AT: visualization, SH: formal analysis, MN: supervision and formal analysis, All authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Manikandan, V.S., George, K., Shimna, M. et al. Electrochemical performance of Bi2WO6/g-C3N4 (2D–2D) hybrid heterostructure as negative electrode materials for supercapacitor application. J Mater Sci: Mater Electron 35, 51 (2024). https://doi.org/10.1007/s10854-023-11804-w
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DOI: https://doi.org/10.1007/s10854-023-11804-w