Arora, Manju and Zargar, R. A. (2015) Synthesis and Characterization of Fe3O4: Porous Carbon Nanocomposites for Biosensor Application. In: ADVANCED MATERIALS AND RADIATION PHYSICS (AMRP-2015): 4th National Conference on Advanced Materials and Radiation Physics, 13–14 March 2015, Longowal, India.

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Abstract

Fe3O4:Porous carbon (Fe3O4 :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 N2 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.

Item Type:	Conference or Workshop Item (Paper)
Subjects:	Physics
Divisions:	UNSPECIFIED
Depositing User:	Ms Neetu Chandra
Date Deposited:	16 Mar 2016 10:31
Last Modified:	16 Mar 2016 10:31
URI:	http://npl.csircentral.net/id/eprint/1675

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