Online citations, reference lists, and bibliographies.
Please confirm you are human
(Sign Up for free to never see this)
← Back to Search

Synthesis And Magneto-structural Study Of CoxFe3−xO4 Nanoparticles

R. Betancourt-Galindo, O. Ayala-Valenzuela, L. A. García-Cerda, O. R. Fernández, J. Matutes-Aquino, G. Ramos, H. Yee-Madeira
Published 2005 · Physics

Save to my Library
Download PDF
Analyze on Scholarcy
Abstract The Co 2+ ion in an octahedral site of the cubic spinel structure has a highly anisotropic character. The electric crystal field produces a degenerate ground state with a orbital magnetic momentum fixed parallel to a 〈1 1 1〉 trigonal axis, and the spin–orbit interaction tends to align the spin magnetic moment parallel to this trigonal axis giving high anisotropy. Then, the use of Co x Fe 3− x O 4 system allows the tailoring of the magnetic properties by changing the cobalt content, which can be very useful in magnetic fluids, magnetic latex and free rotors applications. In this work Co x Fe 3− x O 4 nanoparticles over a compositional range 0.0 x 1.0 were synthesized by chemical co-precipitation from iron and cobalt salts using ammonium hydroxide as precipitating agent. The powders were characterized by X-ray diffraction, transmission electronic microscopy and vibrating sample magnetometry. Nanoparticles with a size smaller than 15 nm with a narrow particle distribution size were obtained. X-ray diffraction confirmed the formation of a unique phase. The magnetic behavior of Co x Fe 3− x O 4 powders shows that an increase of the cobalt contain yields a steadily decrease in the maximum magnetization.
This paper references

This paper is referenced by
Cobalt ferrite nanoparticles: Achieving the superparamagnetic limit by chemical reduction
P. Jeppson (2006)
In vitro and in vivo biocompatibility of apatite-coated magnetite nanoparticles for cancer therapy
E. M. Múzquiz-Ramos (2013)
Synthesis and characterization of magnetite nanoparticles coated with lauric acid
J. Mamani (2013)
Synthesis of poly(vinyl alcohol)–magnetite ferrogel obtained by freezing–thawing technique
P. J. Reséndiz-Hernández (2008)
Hyperthermia properties of NixFe3−xO4 nanoparticles: a first-order reversal curve investigation
Ahmad Reza Yasemian (2019)
On the characterization of magnetic and nanometric CoxFe1−xO·Fe2O3 composites
S. I. Park (2006)
Exploring the effect of Co concentration on magnetic hyperthermia properties of Co x Fe 3-x O 4 nanoparticles
Ahmad Reza Yasemian (2020)
Biomimetic apatite coating on magnetite particles
E. M. Múzquiz-Ramos (2010)
Covalent hyaluronic-based coating of magnetite nanoparticles: Preparation, physicochemical and biological characterization.
A. Atrei (2020)
Development of iron oxide nanoparticles using alginate hydrogel template for chromium (VI) ions removal
A. M. Omer (2020)
In vitro bonelike apatite formation on magnetite nanoparticles after a calcium silicate treatment: Preparation, characterization and hemolysis studies
E. M. Múzquiz-Ramos (2012)
Properties of Polyalphaolefin-Based Ferrofluids
Jong-hee Kim (2015)
The effect of magneto-crystalline anisotropy on the properties of hard and soft magnetic ferrite nanoparticles
Hajar Jalili (2019)
High-Permeability Particles for Magnetic Composites
Robert A. Sailer (2005)
Mechanism of Co(II) adsorption by zero valent iron/graphene nanocomposite.
Min Xing (2016)
Synthesis and characterization of maghemite nanoparticles for hyperthermia applications
E. M. Múzquiz-Ramos (2015)
Detailed magnetic characteristics of cobalt ferrite (Co x Fe 3-x O 4 ) nanoparticles synthesized in the presence of PVP surfactant
M. Kashi (2020)
In situ synthesis of iron oxide nanoparticles in a styrene-divinylbenzene copolymer
L. A. García-Cerda (2007)
Tuning the relaxation behaviour by changing the content of cobalt in CoxFe3−xO4 ferrofluids
B. Fischer (2005)
Iron-oxide nanoparticles mediated cyclization of 3-(4-chlorophenyl)-1-hydrazinylisoquinoline to 1-(4,5-dihydropyrazol-1-yl)isoquinolines
F. Nawaz Khan (2011)
Synthesis of iron oxide nanoparticles using chitosan and starch templates
Sreeram Kalarical Janardhanan (2008)
Magnetic, electric and thermal properties of cobalt ferrite nanoparticles
L. Ajroudi (2014)
Preparation and Properties of CoFe2O4 Synthesized by the Modified Citrate-Gel Method
E. M. Múzquiz-Ramos (2010)
Semantic Scholar Logo Some data provided by SemanticScholar