The effect of reflux process on the size and uniformity of FePt nanoparticles
Journal Title: International Journal of Fundamental Physical Sciences - Year 2011, Vol 1, Issue 3
Abstract
FePt nanoparticles attract great research interest for possible application to ultrahigh density magnetic recording media. In this paper, FePt magnetic nanoparticles were synthesized by superhydride reduction of FeCl2 and Pt(acac)2 at high temperature. Adding superhydride (LiBEt3H) to the phenyl ether solution of FeCl2 and Pt(acac)2 in the presence of oleic acid, oleylamine, and 1,2-hexadecanediol at 200 °C, followed by refluxing at 250 °C, led to monodisperse 3 nm FePt nanoparticles. The effect of reflux process on the size and uniformity of FePt nanoparticles has been investigated. TEM images showed that the size of FePt nanoparticles increase to 4 nm with reflux process and the standard deviation of FePt nanoparticles increase to 10 % which lead to improving the uniformity of FePt nanoparticles. The results of EDS analysis showed that the Fe shell around FePt nanoparticles increase with increasing reflux time and the composition of FePt nanoparticles gives Fe68Pt32 after 10 min reflux.
Authors and Affiliations
Majid Farahmandjou
Keywords
Related Articles
- EP ID EP599306
- DOI 10.14331/ijfps.2011.330014
- Views 62
- Downloads 0
Lead Poisoning and Measurement of Body Burdens of Lead: A Perspective
The measurement of lead in archaeological bone forms the basis for providing insight into ancient societies, including disease, lifestyle and eating habits. It is sometimes asserted that in the 5th century AD lead toxici...
Predicted Dynamic and Structural Criterion of Evaluation of Gravitational Waves
The cosmic (physical) vacuum according to modern data possesses the properties of a material medium. In combination with the celestial bodies, this medium is capable of forming dynamic structures. Presumably, these struc...
On how Bohr model of hydrogen atom is connected to nuclear physics
Views The atom model of Quantum Mechanics (QM) was conceived from an unsolved paradox. Indeed, Schrödinger’s equation has been deducted by considering a free electron, but it is applied for the atom, where...
Intra-Cavity Loss Element Method for Measurement of the Small Signal Gain of a TEA CO2 Laser
The small-signal gain coefficient of a TEA CO2 laser has been measured through the implementation of a variable polarization intra-cavity loss element. Charging voltage dependence of the gain property of the laser has be...
Crystal Growth and Powder X-Ray Diffraction Data of Cadmium Zinc Tellurium (Cd0.29Zn0.71Te)
X-ray powder diffraction data for a new Cadmium Zinc Tellurium compound synthesized by Bridgman technique is reported. The unit cell dimensions were determined from diffractometer methods using CuK radiation, and the in...