Online citations, reference lists, and bibliographies.
← Back to Search

Controlling Magnetic Properties Of Iron Oxide Nanoparticles Using Post-synthesis Thermal Treatment

Vineet Panchal, U. Bhandarkar, M. Neergat, K. G. Suresh
Published 2014 · Materials Science

Cite This
Download PDF
Analyze on Scholarcy
Share
Changes in morphological and magnetic properties of Fe3O4 nanoparticles before and after annealing are investigated in the present work. The nanoparticles are synthesized in a standard capacitively coupled plasma enhanced chemical vapour deposition system with two electrodes using ferrocene as the source compound. Post annealing, due to the sintering process, the particles fuse along with recrystallization. This results in increased size of the nanoparticles and the interparticle interaction, which play a major role in deciding the magnetic properties. X-ray diffraction patterns of the samples before and after annealing indicate a phase change from Fe3O4 to Fe2O3. Annealing at 200 ∘C causes the apparent saturation magnetization to increase from 6 emu g−1 to 15 emu g−1. When annealed at 500 ∘C, the magnetic properties of the nanoparticles resemble those of the bulk material. The evidence for the transition from a superparamagnetic state to a collective state is also observed when annealed at 500 ∘C. Variation of the magnetic relaxation data with annealing also reflects the change in the magnetic state brought about by the annealing. The correlation between annealing temperature and the magnetic properties can be used to obtain nanocrystallites of iron oxide with different sizes and magnetic properties.
This paper references
10.1063/1.3684624
Memory effects in superparamagnetic and nanocrystalline Fe50Ni50 alloy
D. De (2012)
10.1088/0953-8984/23/50/506002
Low temperature cluster glass behavior in Nd5Ge3.
B. Maji (2011)
10.1063/1.1457544
Annealing study of Fe2O3 nanoparticles: Magnetic size effects and phase transformations
X. Xu (2002)
10.1002/SMLL.200500006
Synthesis, properties, and applications of iron nanoparticles.
D. Huber (2005)
10.1103/PHYSREVB.57.7434
EVIDENCE FOR THE FORMATION OF THE SPIN-GLASS STATE IN U2PDSI3
D. Li (1998)
10.1063/1.3624833
Effect of interparticle interactions and size dispersion in magnetic nanoparticle assemblies: A static and dynamic study
J. Lee (2011)
10.1016/j.jcis.2009.07.068
Interplay between crystallization and particle growth during the isothermal annealing of colloidal iron oxide nanoparticles.
P. Haddad (2009)
10.1103/PHYSREVB.76.045428
Melting point depression of nanosolids : Nonextensive thermodynamics approach
P. Letellier (2007)
10.1088/0957-4484/17/23/023
Magnetic nanoparticles with enhanced ?-Fe2O3 to ?-Fe2O3 phase transition temperature
G. Gnanaprakash (2006)
10.1002/ANIE.200602866
Magnetic nanoparticles: synthesis, protection, functionalization, and application.
A. Lu (2007)
10.1103/PHYSREVLETT.84.167
Influence of dipolar interaction on magnetic properties of ultrafine ferromagnetic particles
Garcia-Otero (2000)
10.1007/s11090-012-9364-1
Thermal Plasma Synthesis of Superparamagnetic Iron Oxide Nanoparticles
Pingyan Lei (2012)
10.1021/JP027048E
Magnetite Fe3O4 Nanocrystals: Spectroscopic Observation of Aqueous Oxidation Kinetics†
J. Tang (2003)
10.1557/JMR.1999.0210
Characterization of Nanocrystalline γ–Fe 2 O 3 Prepared by Wet Chemical Method
G. Ennas (1999)
10.1063/1.367843
Magnetic relaxation in Ga0.6Mo2S4 spinel
T. Taniyama (1998)
10.1021/JP910374S
Ultrasound-Assisted Fusion of Preformed Gold Nanoparticles
D. Radziuk (2010)
The Iron Oxides: Structure, Properties, Reactions, Occurrences and Uses
R. M. Cornell (1996)
10.1103/PHYSREVLETT.67.2721
Dipole interactions with random anisotropy in a frozen ferrofluid.
Luõ (1991)
10.1007/S11051-009-9767-Y
The effects of vacuum annealing on the structure and surface chemistry of iron:nickel alloy nanoparticles
M. Dickinson (2010)
10.1039/b925371h
Thermal hysteresis of Morin transition in hematite particles.
L. Suber (2010)
10.1103/PHYSREVLETT.72.3278
Superparamagnetic relaxation of weakly interacting particles.
Morup (1994)
10.1007/S11051-009-9732-9
The effects of vacuum annealing on the structure and surface chemistry of iron nanoparticles
T. Scott (2010)
10.1088/0957-4484/19/04/045706
Dominant dipolar interaction and glassy magnetic behaviour in polymer-coated magnetite nanoparticles.
M. Thakur (2008)
10.1016/S0040-6031(03)00250-8
Thermomagnetometric evidence of γ-Fe2O3 as an intermediate in the oxidation of magnetite
J. P. Sanders (2003)
10.1088/0953-8984/22/1/016003
Memory and aging effects in NiO nanoparticles.
V. Bisht (2010)
10.1007/S11051-011-0305-3
Synthesis and characterization of carbon coated nanoparticles produced by a continuous low-pressure plasma process
Vineet Panchal (2011)
10.1016/S0169-4332(99)00385-2
Production of iron-oxide nanoparticles by laser-induced pyrolysis of gaseous precursors
S. Martelli (2000)
10.1063/1.1564881
Nanoparticle formation in microchannel glass by plasma enhanced chemical vapor deposition
D. McIlroy (2003)
10.1021/CM049552X
Easy Synthesis and Magnetic Properties of Iron Oxide Nanoparticles
K. Woo (2004)
10.1016/J.PCRYSGROW.2008.08.003
Synthesis, properties, and applications of magnetic iron oxide nanoparticles
A. Teja (2009)
10.1088/0022-3727/44/34/345205
The effects of process parameters on yield and properties of iron nanoparticles from ferrocene in a low-pressure plasma
Vineet Panchal (2011)
10.1016/J.PROCI.2006.07.097
Modeling ferrocene reactions and iron nanoparticle formation: Application to CVD synthesis of carbon nanotubes
K. Kuwana (2007)
Advanced magnetic materials : nanostructural effects
Yi Liu (2006)
10.1016/J.JALLCOM.2012.02.056
Highly crystalline superparamagnetic iron oxide nanoparticles (SPION) in a silica matrix
Marin Tadic (2012)
10.1063/1.4711073
Erratum: “Memory effects in superparamagnetic and nanocrystalline Fe50Ni50 alloy” [J. Appl. Phys. 111, 033919 (2012)]
D. De (2012)
10.1016/J.INTERMET.2010.09.007
Spin-glass behavior in CeCuxNi4−xMn and Ce0.9Nd0.1Ni4Mn compounds
T. Toliński (2011)



This paper is referenced by
10.1016/J.JALLCOM.2016.11.260
Temperature mediated morphological and magnetic phase transitions of iron/iron oxide Core/Shell nanostructures
U. Khan (2017)
10.1016/J.APSUSC.2015.11.238
Sol-gel combustion synthesis, particle shape analysis and magnetic properties of hematite (α-Fe 2 O 3 ) nanoparticles embedded in an amorphous silica matrix
Lazar Kopanja (2016)
10.1016/J.PHYSB.2019.411663
Structure and magnetic properties of Mn doped α-Fe2O3
R. Nikam (2019)
10.1039/C4RA09698C
Multifunctional microparticles with uniform magnetic coatings and tunable surface chemistry
Tobias P. Niebel (2014)
10.1088/0022-3727/49/50/505001
Ultrafast demagnetization in Fe3O4 and γ‒Fe2O3 nanoparticles: the role of enhanced antiferromagnetic exchange interaction
E. Terrier (2016)
10.1021/ACS.JPCC.5B01547
Silica-Coated and Bare Akaganeite Nanorods: Structural and Magnetic Properties
M. Tadić (2015)
10.1016/J.APSUSC.2014.08.193
Magnetic properties of hematite (α-Fe2O3) nanoparticles prepared by hydrothermal synthesis method
M. Tadić (2014)
10.1080/25740881.2019.1647238
Polymeric materials filled with hematite nanoparticle: current state and prospective application
Ayesha Kausar (2020)
10.1021/acsnano.7b00609
Thermal Decomposition Synthesis of Iron Oxide Nanoparticles with Diminished Magnetic Dead Layer by Controlled Addition of Oxygen.
M. Unni (2017)
10.1007/S00339-017-1145-5
Facile electrosynthesis and characterization of superparamagnetic nanoparticles coated with cysteine, glycine and glutamine
M. Aghazadeh (2017)
10.1016/j.msec.2017.03.024
Combinatorial delivery of superparamagnetic iron oxide nanoparticles (γFe2O3) and doxorubicin using folate conjugated redox sensitive multiblock polymeric nanocarriers for enhancing the chemotherapeutic efficacy in cancer cells.
Chetan Nehate (2017)
Semantic Scholar Logo Some data provided by SemanticScholar