img
Low temperature hydrothermal synthesis and characterization of Mn doped cobalt ferrite nanoparticles       
Yazarlar
Yüksel Köseoğlu
Türkiye
Furkan Alan
Türkiye
Dr. Öğr. Üyesi Muhammed TAN Dr. Öğr. Üyesi Muhammed TAN
Türkiye
Resül Yilğin
Türkiye
Mustafa Öztürk
Türkiye
Özet
A series of Mn doped cobalt ferrite compounds with the formula Mn xCo 1-xFe 2O 4 where x = 0.0, 0.2, 0.4, 0.6, 0.8 and 1.0 were successfully synthesized by polyethylene glycol-assisted hydrothermal method. All samples were found to have cubic spinel structure. Average crystallite sizes of the nanoparticles were estimated using Debye-Scherrer's equation and found to be in between 14 and 22 nm with small size distribution. SEM was used to study morphological variations and EDX results showed that the compositional mass ratios were relevant as expected from the synthesis. VSM measurements show that all samples possess both ferromagnetic and superparamagnetic phases separated by blocking temperatures that decrease with increase in Mn content. Likewise, coercive fields and remanent magnetizations of the samples generally decrease as the parameter x goes from 0.0 to 1.0. They show ferromagnetic behaviors at temperatures lower than the blocking temperature. Magnetization and the coercive field of the samples increase by decreasing the temperature. © 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
Anahtar Kelimeler
Hydrothermal synthesis | Magnetic nanoparticles | Mn-Co spinel ferrites | SEM | VSM | XRD
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı CERAMICS INTERNATIONAL
Dergi ISSN 0272-8842
Dergi Tarandığı Indeksler SCI
Dergi Grubu Q1
Makale Dili İngilizce
Basım Tarihi 07-2012
Cilt No 38
Sayı 5
Sayfalar 3625 / 3634
Doi Numarası 10.1016/j.ceramint.2012.01.001