ItemArticle

NiSe2@CdO Nanocomposite: A Next-Generation Electrode for Asymmetric Supercapacitors with Gel Electrolyte

Title
NiSe2@CdO Nanocomposite: A Next-Generation Electrode for Asymmetric Supercapacitors with Gel Electrolyte
Creator
Alagarsamy, Nivedhitha Bharathi; Vijayan, Kousalya Devi; Shkir, Mohd; Rajendran, Saravanan; Sangaraju, Sambasivam; Muthusamy, Krishna Kumar; Sakkarapani, Sudhahar
Description
This article investigates the electrochemical performance of NiSe2@CdO nanocomposites synthesized by combining melt-diffusion-synthesized NiSe2 and hydrothermally prepared CdO, followed by ball milling to obtain the final NiSe2@CdO composite. Structural, morphological, and electrochemical analyses revealed flake-like NiSe2 nanoparticles decorated with rod-shaped CdO nanostructures, exhibiting exceptional electrochemical performance. The nanocomposite electrode achieved a specific capacitance of 255 F/g at 10 mV/s from the three-electrode setup, and also, was achieved at an energy density of 48 Wh/kg at the power density 2000 W/kg by the NiSe2@CdO||AC asymmetric device. fourier transform infrared analysis confirmed the structural integrity, while transmission electron microscopy images revealed nanostructures with clear lattice fringes, and energy-dispersive X-ray Spectroscopy verified elemental uniformity. The device demonstrated 96.7% capacitance retention even after 5000 cycles and displayed superior energy and power density characteristics in the Ragone plot. These results in turn, highlight the potential of NiSe2@CdO nanocomposites for next-generation energy storage systems. 2025 Wiley-VCH GmbH.
Source
Energy Technology;Volume;14;Issue;1;Article No.;e202501583;
Date
01-01-2026
Publisher
John Wiley and Sons Inc
Subject
asymmetric capacitor; electrochemical performance; energy density; NiSe2@CdO nanocomposite; supercapacitors
Coverage
Alagarsamy N.B., Department of Physics, Alagappa University, Karaikudi, India; Vijayan K.D., Department of Physics, Alagappa University, Karaikudi, India; Shkir M., Department of Physics, College of Science, King Khalid University, Abha, Saudi Arabia; Rajendran S., Instituto de Alta Investigacion, Universidad de Tarapaca, Arica, Chile; Sangaraju S., National Water and Energy Center, United Arab Emirates University, Al Ain, United Arab Emirates; Muthusamy K.K., Department of Physics and Electronics, CHRIST University, Bengaluru, India; Sakkarapani S., Department of Physics, Alagappa University, Karaikudi, India
Rights
All Open Access; Bronze Open Access
Relation
ISSN: 21944288;
Format
online
Language
English
Type
Article

Citation

Alagarsamy, Nivedhitha Bharathi; Vijayan, Kousalya Devi; Shkir, Mohd; Rajendran, Saravanan; Sangaraju, Sambasivam; Muthusamy, Krishna Kumar; Sakkarapani, Sudhahar, “NiSe2@CdO Nanocomposite: A Next-Generation Electrode for Asymmetric Supercapacitors with Gel Electrolyte,” CHRIST (Deemed To Be University) Institutional Repository, accessed June 18, 2026, https://archives.christuniversity.in/items/show/21771.

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