Facile synthesis and electrochemical performance of FeVO4 nanoparticles as negative electrodes in supercapacitors
Packiaraj R. Sivaganesh D. Baskaran P. Devendran P. Nallamuthu N. Venkatesh K.S. Kuterbekov K.A. Kabyshev A.
December 2025Springer
Journal of Materials Science: Materials in Electronics
2025#36Issue 34
The growing global demand for reliable and sustainable energy has intensified efforts to develop advanced energy storage technologies. Supercapacitors have emerged as a critical solution due to their high power density, fast charge–discharge rates, and excellent cycle life, making them essential for portable electronics, electric vehicles, and hybrid energy systems. In this study, FeVO4 nanospheres were synthesized via a facile sol–gel combustion method and evaluated as a high-performance negative electrode material for supercapacitor applications. Structural and morphological analyses (XRD, SEM, XPS) confirmed the formation of pure-phase triclinic FeVO4 with well-defined nanostructures and appropriate valence states of Fe and V. Electrochemical investigations, including cyclic voltammetry (CV), galvanostatic charge–discharge (GCD), and electrochemical impedance spectroscopy (EIS), revealed dominant pseudocapacitive behavior governed by diffusion-controlled redox reactions. The FeVO4 electrode exhibited a remarkable specific capacitance of 928 F g–1 at 1 A g–1 and retained 98.06% of its initial capacitance after 10,000 cycles, indicating superior cycling durability. Notably, this study demonstrates the potential of FeVO4 nanospheres as a cost-effective, robust, and scalable negative electrode material for asymmetric supercapacitor device fabrication-underscoring its novelty among vanadate-based pseudocapacitors.
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Institute of Physical and Technical Sciences, L.N. Gumilyov Eurasian National University, Astana, 010008, Kazakhstan
Research Group for Advanced Materials & Sustainable Catalysis (AMSC), College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, China
Anhui International Exchange and Cooperation Base, Qing Yang Institute for Industrial Minerals, Anhui, Youhua, Qingyang, 242804, China
Department of Physics, Bannari Amman Institute of Technology, Tamil Nadu, Erode, 638401, India
Department of Physics, Dayananda Sagar Academy of Technology and Management, Udayapura, Karnataka, Bangalore, 560082, India
Department of Physics, KCG College of Technology, Tamil Nadu, Karapakkam, Chennai, 600097, India
Institute of Physical and Technical Sciences
Research Group for Advanced Materials & Sustainable Catalysis (AMSC)
Anhui International Exchange and Cooperation Base
Department of Physics
Department of Physics
Department of Physics
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