Influence of pH on the structural and magnetic behavior of cobalt ferrite synthesized by sol-gel auto-combustion

Journal Article · Wed Jun 24 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4918205· OSTI ID:22490590

Kambale, R. C.

Cobalt ferrite (CoFe{sub 2}O{sub 4}) shown to be promising candidate for applications such as high-density magnetic recording, enhanced memory storage, magnetic fluids and catalysts. Utility of ferrite nanoparticles depends on its size, dispersibility in solutions, and magnetic properties. We have investigated the structural properties of synthesized cobalt ferrite nanoparticles synthesized by sol gel auto combustion for uncontrolled, acidic, neutral and basic pH values. X-ray diffraction (XRD) study confirms the cubic spinel phase formation with lattice constant 8.38 Å. In this study, we have optimized the pH value to synthesize homogenous cobalt ferrite nanoparticles with enhanced magnetic behavior. The surface morphology has been investigated by employing SEM images and the confirmation of spinel ferrite was also supported by using IR spectroscopy. Magnetic measurements for CoFe{sub 2}O{sub 4} compositions (with pH <1, pH = 3, 7, 10) were investigated using VSM measurements.

• OSTI ID: 22490590
• Journal Information: AIP Conference Proceedings, Vol. 1665, Issue 1; Conference: 59. DAE solid state physics symposium 2014, Tamilnadu (India), 16-20 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CATALYSTS
COBALT OXIDES
COMBUSTION
ELECTRIC UTILITIES
FERRITES
FLUIDS
INFRARED SPECTRA
LATTICE PARAMETERS
MAGNETIC PROPERTIES
MORPHOLOGY
NANOPARTICLES
PH VALUE
SCANNING ELECTRON MICROSCOPY
SOL-GEL PROCESS
SPINELS
SURFACES
VIBRATING SAMPLE MAGNETOMETERS
X-RAY DIFFRACTION