Realization of structural transformation for the enhancement of magnetic and magneto capacitance effect in BiFeO3–CoFe2O4 ceramics for energy storage application

Abstract In this study, (1 − x) BFO-xCFO (CFO, x = 0.00, 0.05, 0.10 and 0.30) ceramics were synthesized by a solid-state reaction method; their compositions were driven by structural, microstructural, vibrational, electrical, magnetic properties; their enhanced magneto capacitance (MC) effect have a...

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Autores principales:	Muniyandi Muneeswaran, Ali Akbari-Fakhrabadi, Miguel Angel Gracia-Pinilla, Juliano C. Denardin, Nambi Venkatesan Giridharan
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2a94fbf6c9464556ab3c5e80678fd306
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spelling	oai:doaj.org-article:2a94fbf6c9464556ab3c5e80678fd3062021-12-02T10:48:03ZRealization of structural transformation for the enhancement of magnetic and magneto capacitance effect in BiFeO3–CoFe2O4 ceramics for energy storage application10.1038/s41598-021-81867-42045-2322https://doaj.org/article/2a94fbf6c9464556ab3c5e80678fd3062021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81867-4https://doaj.org/toc/2045-2322Abstract In this study, (1 − x) BFO-xCFO (CFO, x = 0.00, 0.05, 0.10 and 0.30) ceramics were synthesized by a solid-state reaction method; their compositions were driven by structural, microstructural, vibrational, electrical, magnetic properties; their enhanced magneto capacitance (MC) effect have also been carried out. Reitveld refinement studies of X-ray diffraction data shows composition-driven structural phase transformation from rhombohedral (R3c) to tetragonal (P4mm). Two phonon scattering Raman modes were observed for the higher wavenumber which supports the crystal structural transition in the BFO-CFO. Ferroelectric polarization shows that the polarization increased with increasing CFO concentration, which describes the changes of the polar symmetry of the crystal structure from rhombohedral (R3c) to tetragonal (P4mm). In Further, the maximum efficiency of energy density (η = 68.65%), reversible energy density of 0.138 J/cm3 and the strong magneto capacitance was observed in 0.9BFO-0.1CFO, which belongs to the morphotropic phase boundary (MPB) region near to the BiFeO3-rich region. The magnetic response analysis has shown, the saturation magnetization (Ms) values of 83 emu/gm and 139 emu/gm for pure CFO and 0.7BFO-0.3CFO composite, respectively, and their magnetic behaviours were also confirmed with Arrott–Belov–Kouvel (ABK) plot.Muniyandi MuneeswaranAli Akbari-FakhrabadiMiguel Angel Gracia-PinillaJuliano C. DenardinNambi Venkatesan GiridharanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Muniyandi Muneeswaran Ali Akbari-Fakhrabadi Miguel Angel Gracia-Pinilla Juliano C. Denardin Nambi Venkatesan Giridharan Realization of structural transformation for the enhancement of magnetic and magneto capacitance effect in BiFeO3–CoFe2O4 ceramics for energy storage application
description	Abstract In this study, (1 − x) BFO-xCFO (CFO, x = 0.00, 0.05, 0.10 and 0.30) ceramics were synthesized by a solid-state reaction method; their compositions were driven by structural, microstructural, vibrational, electrical, magnetic properties; their enhanced magneto capacitance (MC) effect have also been carried out. Reitveld refinement studies of X-ray diffraction data shows composition-driven structural phase transformation from rhombohedral (R3c) to tetragonal (P4mm). Two phonon scattering Raman modes were observed for the higher wavenumber which supports the crystal structural transition in the BFO-CFO. Ferroelectric polarization shows that the polarization increased with increasing CFO concentration, which describes the changes of the polar symmetry of the crystal structure from rhombohedral (R3c) to tetragonal (P4mm). In Further, the maximum efficiency of energy density (η = 68.65%), reversible energy density of 0.138 J/cm3 and the strong magneto capacitance was observed in 0.9BFO-0.1CFO, which belongs to the morphotropic phase boundary (MPB) region near to the BiFeO3-rich region. The magnetic response analysis has shown, the saturation magnetization (Ms) values of 83 emu/gm and 139 emu/gm for pure CFO and 0.7BFO-0.3CFO composite, respectively, and their magnetic behaviours were also confirmed with Arrott–Belov–Kouvel (ABK) plot.
format	article
author	Muniyandi Muneeswaran Ali Akbari-Fakhrabadi Miguel Angel Gracia-Pinilla Juliano C. Denardin Nambi Venkatesan Giridharan
author_facet	Muniyandi Muneeswaran Ali Akbari-Fakhrabadi Miguel Angel Gracia-Pinilla Juliano C. Denardin Nambi Venkatesan Giridharan
author_sort	Muniyandi Muneeswaran
title	Realization of structural transformation for the enhancement of magnetic and magneto capacitance effect in BiFeO3–CoFe2O4 ceramics for energy storage application
title_short	Realization of structural transformation for the enhancement of magnetic and magneto capacitance effect in BiFeO3–CoFe2O4 ceramics for energy storage application
title_full	Realization of structural transformation for the enhancement of magnetic and magneto capacitance effect in BiFeO3–CoFe2O4 ceramics for energy storage application
title_fullStr	Realization of structural transformation for the enhancement of magnetic and magneto capacitance effect in BiFeO3–CoFe2O4 ceramics for energy storage application
title_full_unstemmed	Realization of structural transformation for the enhancement of magnetic and magneto capacitance effect in BiFeO3–CoFe2O4 ceramics for energy storage application
title_sort	realization of structural transformation for the enhancement of magnetic and magneto capacitance effect in bifeo3–cofe2o4 ceramics for energy storage application
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/2a94fbf6c9464556ab3c5e80678fd306
work_keys_str_mv	AT muniyandimuneeswaran realizationofstructuraltransformationfortheenhancementofmagneticandmagnetocapacitanceeffectinbifeo3cofe2o4ceramicsforenergystorageapplication AT aliakbarifakhrabadi realizationofstructuraltransformationfortheenhancementofmagneticandmagnetocapacitanceeffectinbifeo3cofe2o4ceramicsforenergystorageapplication AT miguelangelgraciapinilla realizationofstructuraltransformationfortheenhancementofmagneticandmagnetocapacitanceeffectinbifeo3cofe2o4ceramicsforenergystorageapplication AT julianocdenardin realizationofstructuraltransformationfortheenhancementofmagneticandmagnetocapacitanceeffectinbifeo3cofe2o4ceramicsforenergystorageapplication AT nambivenkatesangiridharan realizationofstructuraltransformationfortheenhancementofmagneticandmagnetocapacitanceeffectinbifeo3cofe2o4ceramicsforenergystorageapplication
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Realization of structural transformation for the enhancement of magnetic and magneto capacitance effect in BiFeO3–CoFe2O4 ceramics for energy storage application

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