Preparation of NiFe2O4 nanopowder via EDTA precursor and study of its properties--颗粒学报PARTICUOLOGY

Rajput, A. B., Hazra, S., Krishna, N. B., Chavali, P., Datla, S., & Ghosh, N. N. (2012). Preparation of NiFe2O4 nanopowder via EDTA precursor and study of its properties. Particuology, 10(1), 29–34. https://doi.org/10.1016/j.partic.2011.07.004

Preparation of NiFe₂O₄ nanopowder via EDTA precursor and study of its properties

Amit B. Rajput, Subhenjit Hazra, Niharika B. Krishna, Pavani Chavali, Sneha Datla, Narendra Nath Ghosh^*

Nano-Materials Lab, Department of Chemistry, BITS-Pilani, K.K. Birla Goa Campus, Zuarinagar, Goa 403726, India

10.1016/j.partic.2011.07.004

Volume 10, Issue 1, February 2012, Pages 29-34

Received 20 May 2011, Revised 14 July 2011, Accepted 26 July 2011, Available online 2 January 2012.

E-mail: naren70@yahoo.com

Highlights

► NiFe₂O₄ nanopowder was prepared by EDTA precursor method.

► Change of microstructure with increasing sintering temperature was studied.

► Effect of microstructure on DC resistivity was correlated.

► Room temperature magnetic property of NiFe₂O₄ nanopowder was determined.

Abstract

An ethylene diamine tetra acetic acid (EDTA) precursor-based chemical method is reported for preparing single-phase nickel ferrite (NiFe₂O₄) nanopowder. The synthesized powder was characterized by thermogravimetric analysis, differential scanning calorimetric analysis, X-ray diffraction, particle size analysis and scanning electron microscopy. DC electrical resistivity and magnetic property of the synthesized NiFe₂O₄ were measured by using a two-probe method and a vibrating sample magnetometer respectively. The DC resistivity behaviour of the NiFe₂O₄ nanopowder was correlated with the change of microstructure, during sintering. This EDTA precursor-based method is capable of producing nanostructured single-phase NiFe₂O₄ powder at a comparatively low calcination temperature and offers the potential of a simple and cost-effective route, including the preparation of other ferrite nanoparticles.

Graphical abstract

Keywords

Magnetic materials; Chemical synthesis; X-ray diffraction; Magnetic properties

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