Development of MnAl2O4/Ni3Se2 nanocomposite for enhanced electrocapacitive performance

IF 2.3 4区材料科学 Q2 MATERIALS SCIENCE, CERAMICS Journal of Sol-Gel Science and Technology Pub Date : 2024-11-27 DOI:10.1007/s10971-024-06615-2

Younis Ejaz, Sarah A. Alsalhi, Ashraf Muhammad, Mahmood Ali, Muhammad Saleem, Muhammad Aslam

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Abstract

Fossil fuel utilization leads to environmental pollution and depletion of energy supplies, prompting the preparation of environmentally friend and advanced energy storage devices. In the present research, we synthesize the MnAl₂O₄/Ni₃Se₂ nanocomposite via an effective sonication method as supercapacitor electrode material. The MnAl₂O₄/Ni₃Se₂ nanocomposite demonstrated a higher specific capacitance (1659.67 F/g), energy density (51.18 Wh/kg) along with a power density (235.6 W/kg) at 1 A/g determined from galvanostatic charge-discharge plot which demonstrated cyclic stability of 25 h over 5000^th cycle. Furthermore, compared to pure Ni₃Se₂ (0.72 Ω), MnAl₂O₄/Ni₃Se₂ nanocomposite material exhibited a low charge transfer resistance (0.39 Ω) calculated via the Nyquist plot. The small surface area of Ni₃Se₂ had been improved with the inclusion of MnAl₂O₄ in the fabrication of MnAl₂O₄/Ni₃Se₂ nanocomposite leading to enhance surface area, more active sites and lower resistance responsible for improvement in nanocomposite electrochemical properties. This work revealed that developed nanocomposite’s energy-storing qualities make it suitable as an electrode material in supercapacitors.

Graphical Abstract

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来源期刊

Journal of Sol-Gel Science and Technology 工程技术-材料科学：硅酸盐

CiteScore

4.70

自引率

4.00%

发文量

280

审稿时长

2.1 months

期刊介绍： The primary objective of the Journal of Sol-Gel Science and Technology (JSST), the official journal of the International Sol-Gel Society, is to provide an international forum for the dissemination of scientific, technological, and general knowledge about materials processed by chemical nanotechnologies known as the "sol-gel" process. The materials of interest include gels, gel-derived glasses, ceramics in form of nano- and micro-powders, bulk, fibres, thin films and coatings as well as more recent materials such as hybrid organic-inorganic materials and composites. Such materials exhibit a wide range of optical, electronic, magnetic, chemical, environmental, and biomedical properties and functionalities. Methods for producing sol-gel-derived materials and the industrial uses of these materials are also of great interest.