Cargando…
Boost the Crystal Installation and Magnetic Features of Cobalt Ferrite/M-Type Strontium Ferrite Nanocomposites Double Substituted by La(3+) and Sm(3+) Ions (2CoFe(2)O(4)/SrFe(12−2x)Sm(x)La(x)O(19))
Spinel cobalt ferrite/hexagonal strontium hexaferrite (2CoFe(2)O(4)/SrFe(12−2x)Sm(x)La(x)O(19); x = 0.2, 0.5, 1.0, 1.5) nanocomposites were fabricated using the tartaric acid precursor pathway, and the effects of La(3+)–Sm(3+) double substitution on the formation, structure, and magnetic properties...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8705690/ https://www.ncbi.nlm.nih.gov/pubmed/34947414 http://dx.doi.org/10.3390/ma14247820 |
_version_ | 1784622009083232256 |
---|---|
author | Hessien, Mahmoud M. Turky, Ali Omar Alanazi, Abdullah K. Alsawat, Mohammed Mahmoud, Mohamed H. H. El-Bagoury, Nader M. Rashad, Mohamed |
author_facet | Hessien, Mahmoud M. Turky, Ali Omar Alanazi, Abdullah K. Alsawat, Mohammed Mahmoud, Mohamed H. H. El-Bagoury, Nader M. Rashad, Mohamed |
author_sort | Hessien, Mahmoud M. |
collection | PubMed |
description | Spinel cobalt ferrite/hexagonal strontium hexaferrite (2CoFe(2)O(4)/SrFe(12−2x)Sm(x)La(x)O(19); x = 0.2, 0.5, 1.0, 1.5) nanocomposites were fabricated using the tartaric acid precursor pathway, and the effects of La(3+)–Sm(3+) double substitution on the formation, structure, and magnetic properties of CoFe(2)O(4)/SrFe(12−2x)Sm(x)La(x)O(19) nanocomposite at different annealing temperatures were assayed through X-ray diffraction, scanning electron microscopy, and vibrating sample magnetometry. A pure 2CoFe(2)O(4)/SrFe(12)O(19) nanocomposite was obtained from the tartrate precursor complex annealed at 1100 °C for 2 h. The substitution of Fe(3+) ion by Sm(3)–(+)La(3+)ions promoted the formation of pure 2CoFe(2)O(4)/SrFe(12)O(19) nanocomposite at 1100 °C. The positions and intensities of the strongest peaks of hexagonal ferrite changed after Sm(3+)–La(3+) substitution at ≤1100 °C. In addition, samples with an Sm(3+)–La(3+) ratio of ≥1.0 annealed at 1200 °C for 2 h showed diffraction peaks for lanthanum cobalt oxide (La(3)Co(3)O(8); dominant phase) and samarium ferrite (SmFeO(3)). The crystallite size range at all constituent phases was in the nanocrystalline range, from 39.4 nm to 122.4 nm. The average crystallite size of SrFe(12)O(19) phase increased with the number of Sm(3+)–La(3+) substitutions, whereas that of CoFe(2)O(4) phase decreased with an x of up to 0.5. La–Sm co-doped ion substitution increased the saturation magnetization (Ms) value and the subrogated ratio to 0.2, and the Ms value decreased with the increasing number of double substitutions. A high saturation magnetization value (Ms = 69.6 emu/g) was obtained using a La(3+)–Sm(3+) co-doped ratio of 0.2 at 1200 for 2 h, and a high coercive force value (Hc = 1192.0 Oe) was acquired using the same ratio at 1000 °C. |
format | Online Article Text |
id | pubmed-8705690 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-87056902021-12-25 Boost the Crystal Installation and Magnetic Features of Cobalt Ferrite/M-Type Strontium Ferrite Nanocomposites Double Substituted by La(3+) and Sm(3+) Ions (2CoFe(2)O(4)/SrFe(12−2x)Sm(x)La(x)O(19)) Hessien, Mahmoud M. Turky, Ali Omar Alanazi, Abdullah K. Alsawat, Mohammed Mahmoud, Mohamed H. H. El-Bagoury, Nader M. Rashad, Mohamed Materials (Basel) Article Spinel cobalt ferrite/hexagonal strontium hexaferrite (2CoFe(2)O(4)/SrFe(12−2x)Sm(x)La(x)O(19); x = 0.2, 0.5, 1.0, 1.5) nanocomposites were fabricated using the tartaric acid precursor pathway, and the effects of La(3+)–Sm(3+) double substitution on the formation, structure, and magnetic properties of CoFe(2)O(4)/SrFe(12−2x)Sm(x)La(x)O(19) nanocomposite at different annealing temperatures were assayed through X-ray diffraction, scanning electron microscopy, and vibrating sample magnetometry. A pure 2CoFe(2)O(4)/SrFe(12)O(19) nanocomposite was obtained from the tartrate precursor complex annealed at 1100 °C for 2 h. The substitution of Fe(3+) ion by Sm(3)–(+)La(3+)ions promoted the formation of pure 2CoFe(2)O(4)/SrFe(12)O(19) nanocomposite at 1100 °C. The positions and intensities of the strongest peaks of hexagonal ferrite changed after Sm(3+)–La(3+) substitution at ≤1100 °C. In addition, samples with an Sm(3+)–La(3+) ratio of ≥1.0 annealed at 1200 °C for 2 h showed diffraction peaks for lanthanum cobalt oxide (La(3)Co(3)O(8); dominant phase) and samarium ferrite (SmFeO(3)). The crystallite size range at all constituent phases was in the nanocrystalline range, from 39.4 nm to 122.4 nm. The average crystallite size of SrFe(12)O(19) phase increased with the number of Sm(3+)–La(3+) substitutions, whereas that of CoFe(2)O(4) phase decreased with an x of up to 0.5. La–Sm co-doped ion substitution increased the saturation magnetization (Ms) value and the subrogated ratio to 0.2, and the Ms value decreased with the increasing number of double substitutions. A high saturation magnetization value (Ms = 69.6 emu/g) was obtained using a La(3+)–Sm(3+) co-doped ratio of 0.2 at 1200 for 2 h, and a high coercive force value (Hc = 1192.0 Oe) was acquired using the same ratio at 1000 °C. MDPI 2021-12-17 /pmc/articles/PMC8705690/ /pubmed/34947414 http://dx.doi.org/10.3390/ma14247820 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Hessien, Mahmoud M. Turky, Ali Omar Alanazi, Abdullah K. Alsawat, Mohammed Mahmoud, Mohamed H. H. El-Bagoury, Nader M. Rashad, Mohamed Boost the Crystal Installation and Magnetic Features of Cobalt Ferrite/M-Type Strontium Ferrite Nanocomposites Double Substituted by La(3+) and Sm(3+) Ions (2CoFe(2)O(4)/SrFe(12−2x)Sm(x)La(x)O(19)) |
title | Boost the Crystal Installation and Magnetic Features of Cobalt Ferrite/M-Type Strontium Ferrite Nanocomposites Double Substituted by La(3+) and Sm(3+) Ions (2CoFe(2)O(4)/SrFe(12−2x)Sm(x)La(x)O(19)) |
title_full | Boost the Crystal Installation and Magnetic Features of Cobalt Ferrite/M-Type Strontium Ferrite Nanocomposites Double Substituted by La(3+) and Sm(3+) Ions (2CoFe(2)O(4)/SrFe(12−2x)Sm(x)La(x)O(19)) |
title_fullStr | Boost the Crystal Installation and Magnetic Features of Cobalt Ferrite/M-Type Strontium Ferrite Nanocomposites Double Substituted by La(3+) and Sm(3+) Ions (2CoFe(2)O(4)/SrFe(12−2x)Sm(x)La(x)O(19)) |
title_full_unstemmed | Boost the Crystal Installation and Magnetic Features of Cobalt Ferrite/M-Type Strontium Ferrite Nanocomposites Double Substituted by La(3+) and Sm(3+) Ions (2CoFe(2)O(4)/SrFe(12−2x)Sm(x)La(x)O(19)) |
title_short | Boost the Crystal Installation and Magnetic Features of Cobalt Ferrite/M-Type Strontium Ferrite Nanocomposites Double Substituted by La(3+) and Sm(3+) Ions (2CoFe(2)O(4)/SrFe(12−2x)Sm(x)La(x)O(19)) |
title_sort | boost the crystal installation and magnetic features of cobalt ferrite/m-type strontium ferrite nanocomposites double substituted by la(3+) and sm(3+) ions (2cofe(2)o(4)/srfe(12−2x)sm(x)la(x)o(19)) |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8705690/ https://www.ncbi.nlm.nih.gov/pubmed/34947414 http://dx.doi.org/10.3390/ma14247820 |
work_keys_str_mv | AT hessienmahmoudm boostthecrystalinstallationandmagneticfeaturesofcobaltferritemtypestrontiumferritenanocompositesdoublesubstitutedbyla3andsm3ions2cofe2o4srfe122xsmxlaxo19 AT turkyaliomar boostthecrystalinstallationandmagneticfeaturesofcobaltferritemtypestrontiumferritenanocompositesdoublesubstitutedbyla3andsm3ions2cofe2o4srfe122xsmxlaxo19 AT alanaziabdullahk boostthecrystalinstallationandmagneticfeaturesofcobaltferritemtypestrontiumferritenanocompositesdoublesubstitutedbyla3andsm3ions2cofe2o4srfe122xsmxlaxo19 AT alsawatmohammed boostthecrystalinstallationandmagneticfeaturesofcobaltferritemtypestrontiumferritenanocompositesdoublesubstitutedbyla3andsm3ions2cofe2o4srfe122xsmxlaxo19 AT mahmoudmohamedhh boostthecrystalinstallationandmagneticfeaturesofcobaltferritemtypestrontiumferritenanocompositesdoublesubstitutedbyla3andsm3ions2cofe2o4srfe122xsmxlaxo19 AT elbagourynader boostthecrystalinstallationandmagneticfeaturesofcobaltferritemtypestrontiumferritenanocompositesdoublesubstitutedbyla3andsm3ions2cofe2o4srfe122xsmxlaxo19 AT mrashadmohamed boostthecrystalinstallationandmagneticfeaturesofcobaltferritemtypestrontiumferritenanocompositesdoublesubstitutedbyla3andsm3ions2cofe2o4srfe122xsmxlaxo19 |