International Journal on Science and Technology

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Recent Advancement in Metal Oxides Based Supercapacitors and Future Perspective: A Short Review

Author(s) Dr. Upendra Devendra Lad
Country India
Abstract The growing global demand for efficient, sustainable, and high-performance energy storage systems has accelerated research on supercapacitors, which bridge the gap between conventional capacitors and batteries by offering rapid charge discharge capability, high power density, and long cycle life. Because of their relatively low energy density remains a major limitation, necessitating the development of advanced electrode materials. Metal oxides have emerged as highly promising candidates for supercapacitor applications due to their rich redox activity, multiple oxidation states, high theoretical capacitance, and structural versatility. Transition metal oxides such as MnO₂, RuO₂, NiO, Co₃O₄, and Fe₂O₃, along with binary and ternary oxides, have been extensively studied for enhancing charge storage through pseudocapacitive mechanisms. Recent advances focus on nanostructuring, surface engineering, doping, and hybridization with carbon-based materials or conductive polymers to overcome issues of poor conductivity and limited cycling stability. The design of hierarchical porous structures, core shell morphologies, and flexible binder-free electrodes has further improved ion transport, active site accessibility, and mechanical stability. These developments highlight the immense potential of metal oxide based supercapacitors in next-generation portable electronics, electric vehicles, and renewable energy storage, while future research aims at scalable synthesis, eco-friendly processes, and integration with emerging two-dimensional materials to achieve high energy density and long-term durability. The paper provide the uses and method of metal oxides for supercapacitors applications.
Keywords Supercapacitors, metal oxides, pseudocapacitive, electric vehicles, stability
Published In Volume 16, Issue 3, July-September 2025
Published On 2025-09-02
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