FACILE SYNTHESIS OF FECO NANOPARTICLES BY ONE-POT POLYOL PROCESS

K Pratap,Manam Sreenivasa Rao,Mandava Venkata Basaveswara Rao

doi:10.17628/ecb.2019.8.150-152

Abstract

Ferromagnetic FeCo nanoparticles were prepared by a simple one-pot polyol process and followed by simple annealing treatment. The prepared ferromagnetic FeCo nanoparticles have spherical shape and the size was controlled by the annealing temperature. Importantly, single FeCo phase was obtained at 400°C and these samples have spherical shape and size about 50 nm. While at higher temperature (at 600°C) the nanoparticles have very lower aggregation and have higher coercivity. The prepared FeCo nanoparticle at low temperature with good magnetic properties are to be considered as potential candidate for many applications.

Highlights

Since the polyol process is mostly affected by the alkali concentration and reaction temperature[4,13], we used exact boiling temperature of polyol solution and high concentration alkali
Many wet- chemical methods have been reported to prepare the synthesis of FeCo nanoparticles that includes sol-gel method[5], thermal decomposition[6], borohydride reduction[7], co-precipitation[8], chemical vapor deposition[9] and polyol process[4]
It shows that two kinds of particles were observed with different sizes. The reason for this could be that the annealing temperature was not enough to get a pure phase

Summary

POLYOL PROCESS

Ferromagnetic FeCo nanoparticles were prepared by a simple one-pot polyol process and followed by simple annealing treatment. The prepared ferromagnetic FeCo nanoparticles have a spherical shape and the size was controlled by the annealing temperature. Single FeCo phase was obtained at 400°C and these samples have spherical shape and size about 50 nm. While at a higher temperature (at 600°C) the nanoparticles have very lower aggregation and have higher coercivity. The prepared FeCo nanoparticle at low temperature with excellent magnetic properties is to be considered as a potential candidate for many applications

Introduction

Results and discussion

Conclusions