A review of synthesis strategies for nickel cobaltite-based composites in supercapacitor applications

Yalda Tarpoudi Baheri; Amir Mahdi Homayounfard

doi:10.53063/synsint.2024.41209

Yalda Tarpoudi Baheri ¹
Amir Mahdi Homayounfard ¹

¹ Department of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran

https://doi.org/10.53063/synsint.2024.41209

Abstract

Supercapacitors (SCs), known for their exceptional power and reasonably high energy densities, long lifespan, and lower production costs, have emerged as an ideal solution to meet the growing demand for various energy storage applications. The characteristics of supercapacitors are greatly influenced utilizing the choice of electrode materials, developing novel electrode materials a focal point for extensive research in the field of high-performance supercapacitors. In recent years, NiCo₂O₄ has garnered increasing attention as a supercapacitor electrode material owing to its notable edges, including high theoretical capacity, low cost, abundant availability, and ease of synthesizing. However, the performance of NiCo₂O₄ is hindered by its low electrical conductivity and limited surface area, leading to significant capacity deterioration. Therefore, it is imperative to systematically and comprehensively summarize the advancements in comprehending and adjusting NiCo₂O₄-based electrodes from multiple perspectives. The present review primarily focuses on the synthetic approaches employed to produce NiCo₂O₄ nanomaterials with diverse morphologies for their application in supercapacitors. This review article provides a comprehensive overview of the synthesis approaches utilized for developing nickel cobaltite-based composites tailored for supercapacitor applications. Various synthesis methods, including sol-gel, hydrothermal, and co-precipitation techniques, are discussed in detail, emphasizing the importance of optimizing synthesis parameters to enhance the electrochemical performance of the composites. The potential applications of nickel cobaltite-based composites in supercapacitors are explored, highlighting their promising prospects in energy storage technologies. Future research directions in this field are also discussed.

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Keywords: Supercapacitor, NiCo2O4, Energy storage, Synthesis, Electrode

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