Spinel ferrite nanoparticles plays important role in many applications due to their excellent structural, magnetic and electrical properties. Among the spinel ferrite nickel ferrite is a prominent candidate for various applications and is the subject of interest to many researchers. Therefore, attempt is made to synthesize NiFe2O4 nanoparticles and investigate its structural, infrared and magnetic properties for high frequency applications. NiFe2O4 nanoparticles were synthesized by sol-gel auto-ignition technique. Efforts are made to obtain nanopowder of high quality by taking extra care and some modification in synthesis procedure. In order to examine the phase purity and nanocrystalline nature, prepared nanopowder was subjected to X-ray diffraction studies. A close examination of XRD pattern revealed the presence of the reflections belonging only to cubic spinel structure. No extra peak was seen in the XRD pattern. The crystallite size was estimated using Debye-Scherrer’s formula and found to be 22nm. FT-IR spectrum of NiFe2O4 shows the two prominent absorption bands near the frequency range 400 cm−1 and 600 cm−1. The important magnetic property was studied by M–H plot which was recorded using pulse field hysteresis loop tracer at room temperature. Using the M-H plots the values of saturation magnetization, coercivity, and remanence magnetization are recorded as 37.61 emu/g, 177 Oe, and 11.71 emu/g respectively. The obtained data for structural and magnetic properties will be useful for high frequency applications.

Nickel ferrite nanoparticles have been prepared using clove and citric acid as fuels. Present work focuses the rapid, eco-friendly, inexpensive, green synthesis over regular chemical routes for the preparation of most applicable Nickel ferrite nanoparticles. Here we use Clove (Syzygium aromaticum) extract and citric acid as fuel for green and chemical route synthesis of nickel ferrite nanoparticles respectively. The synthesis of metal nanoparticles using clove extract is a modern alternative for their production. The combination of methods of soft chemistry and green chemistry is the ideal synthesis strategy. Their structural properties are characterized using X-ray diffraction (XRD) study. The XRD study revealed the cubic spinel structure of the Fd3m space group. Also found 24 nm and 26 nm average crystallite size of NiFe2O4-clove and NiFe2O4-C6H8O7 nanoparticles respectively. This comparative study helps to increase attention in various research areas leading to materials that are relatively reproducible and have excellent properties using environmentally friendly, non-toxic and bio-composite reagents.

No abstract

No abstract

No abstract