Pyrolytic carbon decorated cobalt ferrite nanostructures as a negative electrode material for improved supercapacitor applications

K. Prabakaran; T. Kavinkumar; Muhammed Shafi; L. R. Shobin; R. V. Mangalaraja; Vijayabhaskara Rao Bhaviripudi; Carolina Venegas Abarzúa; Arun Thirumurugan

doi:10.1016/j.diamond.2024.111822

Pyrolytic carbon decorated cobalt ferrite nanostructures as a negative electrode material for improved supercapacitor applications

K. Prabakaran, T. Kavinkumar, Muhammed Shafi, L. R. Shobin, R. V. Mangalaraja, Vijayabhaskara Rao Bhaviripudi, Carolina Venegas Abarzúa, Arun Thirumurugan

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

1 Scopus citations

Abstract

Cobalt ferrite (CoFe₂O₄) magnetic nanoparticles (MNPs) are prepared by chemical oxidation method with optimized experimental parameters and carbon modified by simple pyrolysis process with the help of sucrose sugar solutions. The phase and morphology analysis from XRD, FESEM and TEM revealing that the post annealing for the carbon formation is not affecting crystalline phase. The attachment of carbon on CoFe₂O₄ MNPs for the nanocomposite formation is confirmed from the FESEM and TEM micrographs. The saturation magnetization of bare CoFe₂O₄ MNPs is observed as 77 and it decreases to 65 emu/g for the carbon composite. The highest specific capacitance of 318 F/g is achieved for the nanocomposites formed at 400 °C. The electrochemical and magnetic characteristics of the carbon nanocomposites reveals that it could be used as a better candidate in the area of negative electrode materials for the magnetic field assisted electrochemical supercapacitor applications.

Original language	English
Article number	111822
Journal	Diamond and Related Materials
Volume	151
DOIs	https://doi.org/10.1016/j.diamond.2024.111822
State	Published - Jan 2025
Externally published	Yes

Keywords

Capacitance
Carbon
CoFeO
Supercapacitor
Surface modification

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10.1016/j.diamond.2024.111822

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Prabakaran, K., Kavinkumar, T., Shafi, M., Shobin, L. R., Mangalaraja, R. V., Bhaviripudi, V. R., Abarzúa, C. V., & Thirumurugan, A. (2025). Pyrolytic carbon decorated cobalt ferrite nanostructures as a negative electrode material for improved supercapacitor applications. Diamond and Related Materials, 151, Article 111822. https://doi.org/10.1016/j.diamond.2024.111822

@article{9802e4aa47964726adb6f6b1d21c7ce0,

title = "Pyrolytic carbon decorated cobalt ferrite nanostructures as a negative electrode material for improved supercapacitor applications",

abstract = "Cobalt ferrite (CoFe2O4) magnetic nanoparticles (MNPs) are prepared by chemical oxidation method with optimized experimental parameters and carbon modified by simple pyrolysis process with the help of sucrose sugar solutions. The phase and morphology analysis from XRD, FESEM and TEM revealing that the post annealing for the carbon formation is not affecting crystalline phase. The attachment of carbon on CoFe2O4 MNPs for the nanocomposite formation is confirmed from the FESEM and TEM micrographs. The saturation magnetization of bare CoFe2O4 MNPs is observed as 77 and it decreases to 65 emu/g for the carbon composite. The highest specific capacitance of 318 F/g is achieved for the nanocomposites formed at 400 °C. The electrochemical and magnetic characteristics of the carbon nanocomposites reveals that it could be used as a better candidate in the area of negative electrode materials for the magnetic field assisted electrochemical supercapacitor applications.",

keywords = "Capacitance, Carbon, CoFeO, Supercapacitor, Surface modification",

author = "K. Prabakaran and T. Kavinkumar and Muhammed Shafi and Shobin, {L. R.} and Mangalaraja, {R. V.} and Bhaviripudi, {Vijayabhaskara Rao} and Abarz{\'u}a, {Carolina Venegas} and Arun Thirumurugan",

note = "Publisher Copyright: {\textcopyright} 2024 Elsevier B.V.",

year = "2025",

month = jan,

doi = "10.1016/j.diamond.2024.111822",

language = "English",

volume = "151",

journal = "Diamond and Related Materials",

issn = "0925-9635",

publisher = "Elsevier B.V.",

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T1 - Pyrolytic carbon decorated cobalt ferrite nanostructures as a negative electrode material for improved supercapacitor applications

AU - Prabakaran, K.

AU - Kavinkumar, T.

AU - Shafi, Muhammed

AU - Shobin, L. R.

AU - Mangalaraja, R. V.

AU - Bhaviripudi, Vijayabhaskara Rao

AU - Abarzúa, Carolina Venegas

AU - Thirumurugan, Arun

PY - 2025/1

Y1 - 2025/1

N2 - Cobalt ferrite (CoFe2O4) magnetic nanoparticles (MNPs) are prepared by chemical oxidation method with optimized experimental parameters and carbon modified by simple pyrolysis process with the help of sucrose sugar solutions. The phase and morphology analysis from XRD, FESEM and TEM revealing that the post annealing for the carbon formation is not affecting crystalline phase. The attachment of carbon on CoFe2O4 MNPs for the nanocomposite formation is confirmed from the FESEM and TEM micrographs. The saturation magnetization of bare CoFe2O4 MNPs is observed as 77 and it decreases to 65 emu/g for the carbon composite. The highest specific capacitance of 318 F/g is achieved for the nanocomposites formed at 400 °C. The electrochemical and magnetic characteristics of the carbon nanocomposites reveals that it could be used as a better candidate in the area of negative electrode materials for the magnetic field assisted electrochemical supercapacitor applications.

AB - Cobalt ferrite (CoFe2O4) magnetic nanoparticles (MNPs) are prepared by chemical oxidation method with optimized experimental parameters and carbon modified by simple pyrolysis process with the help of sucrose sugar solutions. The phase and morphology analysis from XRD, FESEM and TEM revealing that the post annealing for the carbon formation is not affecting crystalline phase. The attachment of carbon on CoFe2O4 MNPs for the nanocomposite formation is confirmed from the FESEM and TEM micrographs. The saturation magnetization of bare CoFe2O4 MNPs is observed as 77 and it decreases to 65 emu/g for the carbon composite. The highest specific capacitance of 318 F/g is achieved for the nanocomposites formed at 400 °C. The electrochemical and magnetic characteristics of the carbon nanocomposites reveals that it could be used as a better candidate in the area of negative electrode materials for the magnetic field assisted electrochemical supercapacitor applications.

KW - Capacitance

KW - Carbon

KW - CoFeO

KW - Supercapacitor

KW - Surface modification

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U2 - 10.1016/j.diamond.2024.111822

DO - 10.1016/j.diamond.2024.111822

M3 - Article

AN - SCOPUS:85210378448

SN - 0925-9635

VL - 151

JO - Diamond and Related Materials

JF - Diamond and Related Materials

M1 - 111822

ER -

Pyrolytic carbon decorated cobalt ferrite nanostructures as a negative electrode material for improved supercapacitor applications

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Keywords

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