Magneto-electric coupled CoFe2O4/MWCNTs nanocomposites for energy storage applications

Mehwish; Burhanuddin; Muhammad Khalid; Muhammad Younas; M. G.B. Ashiq; Imed Boukhris; Imen Kebaili; Maryam Dildar; Jaweria Yousuf

doi:10.1007/s10971-024-06613-4

Magneto-electric coupled CoFe₂O₄/MWCNTs nanocomposites for energy storage applications

Mehwish
, Burhanuddin
, Muhammad Khalid^*
, Muhammad Younas
, M. G.B. Ashiq^*
, Imed Boukhris
, Imen Kebaili
, Maryam Dildar
, Jaweria Yousuf

^*Corresponding author for this work

Core Research Facilities

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Nanocomposites are in high demand because of their novel and emergent properties which makes them suitable for various technological applications such as electromagnetic interference shielding (EMI), sensing devices and electrode material design. A series of CoFe₂O₄/xMWCNTs nanocomposites with concentration (x = 0.0, 5.0, 10.0, 15.0, 20.0, 25.0 wt.% of MWCNTs) is reported. Cubic spinel ferrites were synthesized via the sol-gel method and then functionalized with MWCNTs. X-Ray diffraction (XRD) analysis confirmed the FCC structure of cobalt ferrite and the presence of MWCNTs, with a crystallite size of 16–20 nm. For x = 25%, a high dielectric constant ≈ 176 was observed. Relaxation phenomenon and polarization stages were explored in detail at high frequencies. Vibrating sample magnetometry (VSM) revealed the soft ferromagnetic behavior of nanocomposites. The observed magneto-electric coupling and high value of relative permittivity suggests that these nanocomposites could be used for multifunctional devices, magnetic sensors, high frequency microwave devices, and energy storage applications.

Original language	English
Pages (from-to)	387-399
Number of pages	13
Journal	Journal of Sol-Gel Science and Technology
Volume	115
Issue number	1
DOIs	https://doi.org/10.1007/s10971-024-06613-4
State	Published - Jul 2025

Bibliographical note

Publisher Copyright:
© The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2024.

Keywords

Dielectric
MWCNTs
Nanocomposites
Sol-Gel
Spinel ferrites
TEM

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
General Chemistry
Biomaterials
Condensed Matter Physics
Materials Chemistry

Access to Document

10.1007/s10971-024-06613-4

Cite this

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title = "Magneto-electric coupled CoFe2O4/MWCNTs nanocomposites for energy storage applications",

abstract = "Nanocomposites are in high demand because of their novel and emergent properties which makes them suitable for various technological applications such as electromagnetic interference shielding (EMI), sensing devices and electrode material design. A series of CoFe2O4/xMWCNTs nanocomposites with concentration (x = 0.0, 5.0, 10.0, 15.0, 20.0, 25.0 wt.\% of MWCNTs) is reported. Cubic spinel ferrites were synthesized via the sol-gel method and then functionalized with MWCNTs. X-Ray diffraction (XRD) analysis confirmed the FCC structure of cobalt ferrite and the presence of MWCNTs, with a crystallite size of 16–20 nm. For x = 25\%, a high dielectric constant ≈ 176 was observed. Relaxation phenomenon and polarization stages were explored in detail at high frequencies. Vibrating sample magnetometry (VSM) revealed the soft ferromagnetic behavior of nanocomposites. The observed magneto-electric coupling and high value of relative permittivity suggests that these nanocomposites could be used for multifunctional devices, magnetic sensors, high frequency microwave devices, and energy storage applications.",

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AU - Mehwish,

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AU - Khalid, Muhammad

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AU - Ashiq, M. G.B.

AU - Boukhris, Imed

AU - Kebaili, Imen

AU - Dildar, Maryam

AU - Yousuf, Jaweria

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N2 - Nanocomposites are in high demand because of their novel and emergent properties which makes them suitable for various technological applications such as electromagnetic interference shielding (EMI), sensing devices and electrode material design. A series of CoFe2O4/xMWCNTs nanocomposites with concentration (x = 0.0, 5.0, 10.0, 15.0, 20.0, 25.0 wt.% of MWCNTs) is reported. Cubic spinel ferrites were synthesized via the sol-gel method and then functionalized with MWCNTs. X-Ray diffraction (XRD) analysis confirmed the FCC structure of cobalt ferrite and the presence of MWCNTs, with a crystallite size of 16–20 nm. For x = 25%, a high dielectric constant ≈ 176 was observed. Relaxation phenomenon and polarization stages were explored in detail at high frequencies. Vibrating sample magnetometry (VSM) revealed the soft ferromagnetic behavior of nanocomposites. The observed magneto-electric coupling and high value of relative permittivity suggests that these nanocomposites could be used for multifunctional devices, magnetic sensors, high frequency microwave devices, and energy storage applications.

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