Sustainable microwave-assisted crafting of CoZrO3@Graphene nanoplatelets nanocomposites for advanced asymmetric supercapacitors

IF 3.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences Pub Date : 2025-02-25 DOI:10.1016/j.solidstatesciences.2025.107881

J. John Benitto, J. Judith Vijaya

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引用次数: 0

Abstract

In response to the growing energy crisis driven by rapid urbanization and population growth, the research investigates the development of high-performance supercapacitor electrode materials. Specifically, CoZrO₃ and its composite with graphene nanoplatelets (GNP) were synthesized using a microwave-assisted combustion method. Structural and morphological characteristics were confirmed by X-ray Diffraction (XRD), Fourier Transform Raman, UV–vis diffuse reflectance spectroscopy (UV-DRS), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and N₂ adsorption/desorption studies. The prepared CoZrO₃@GNP nanocomposites exhibited exemplary electrochemical performance by achieving a maximum specific capacitance of 1003 F g⁻¹ at a current density of 2 A g⁻¹. An asymmetric supercapacitor device fabricated with this nanocomposite demonstrated a specific capacitance of 129.05 F g⁻¹ at 2 A g⁻¹, maintaining 89 % of its initial capacitance after 2000 cycles and delivering an energy density of 165.18 W h kg⁻¹ and maximum power density of 9.14 W kg⁻¹. The significant improvements are attributed to the synergistic effects of the GNP integration, highlighting the potential of CoZrO₃@GNP as a viable electrode material for advanced energy storage applications.

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来源期刊

Solid State Sciences 化学-无机化学与核化学

CiteScore

6.60

自引率

2.90%

发文量

214

审稿时长

27 days

期刊介绍： Solid State Sciences is the journal for researchers from the broad solid state chemistry and physics community. It publishes key articles on all aspects of solid state synthesis, structure-property relationships, theory and functionalities, in relation with experiments. Key topics for stand-alone papers and special issues: -Novel ways of synthesis, inorganic functional materials, including porous and glassy materials, hybrid organic-inorganic compounds and nanomaterials -Physical properties, emphasizing but not limited to the electrical, magnetical and optical features -Materials related to information technology and energy and environmental sciences. The journal publishes feature articles from experts in the field upon invitation. Solid State Sciences - your gateway to energy-related materials.