Synthesis and characterization of Fe{sub 3}O{sub 4}: Porous carbon nanocomposites for biosensor application

Journal Article · Fri Aug 28 00:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4929223· OSTI ID:22488821

Arora, Manju ^[1]

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1. CSIR-National Physical Laboratory, Dr. K.S. Krishnan Marg, New Delhi-110012 (India)

Fe{sub 3}O{sub 4}:Porous carbon (Fe{sub 3}O{sub 4}:PC) nano-magnetic composites were prepared by using different weight fractions of acid treated PC by the chemical co-precipitation route and annealed at 573 K, 773 K and 973 K temperatures in inert N{sub 2} gas atmosphere for 2 hrs to obtain desired stoichiometry of nanocomposites. The structural, morphological and magnetic properties of these composites were characterized by powder XRD, TEM, EPR and VSM analytical techniques. The crystallinity of the composites, g-value and spin concentration increases with increasing annealing temperature. TEM images confirmed the formation of nanosized ferrite nanoprticles whose size increases from 23 nm to 54 nm on increasing annealing temperature. Porous carbon increases porosity, coercivity and reduces saturation magnetization of these prepared nanocomposites.

• OSTI ID: 22488821
• Journal Information: AIP Conference Proceedings, Vol. 1675, Issue 1; Conference: AMRP-2015: 4. national conference on advanced materials and radiation physics, Longowal (India), 13-14 Mar 2015; 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

36 MATERIALS SCIENCE
ANNEALING
CARBON
COERCIVE FORCE
CONCENTRATION RATIO
COPRECIPITATION
ELECTRON SPIN RESONANCE
FERRITES
G VALUE
IRON OXIDES
MAGNETIC PROPERTIES
MAGNETIZATION
NANOCOMPOSITES
NANOSTRUCTURES
POROSITY
POROUS MATERIALS
POWDERS
SYNTHESIS
TRANSMISSION ELECTRON MICROSCOPY
VIBRATING SAMPLE MAGNETOMETERS
X-RAY DIFFRACTION