Microwave driven hydrothermal synthesis of iron oxide - the effect of process parameter on the properties of the nanopowders

Robert Fedyk 1,  Martin Arnault ,  Witold Łojkowski 1

1. Polish Academy of Sciences, High Pressure Research Center (UNIPRESS), Sokolowska 29/37, Warszawa 01-142, Poland

Abstract

In recent years a lot of attention has been given to the synthesis of magnetic iron oxide nanoparticles due to their numerous applications. For example they are of great interest for information storage, jet printing, pigments and in medicine and biology. Each application requires particular properties from iron oxide particles which depend on their shape and grain size. Therefore it is important to develop various synthesis routes of magnetic nanocrystalline particles.
In our work we used the microwave driven hydrothermal synthesis MDHS because both microwaves and pressure allow synthesis of iron oxide nanoparticles along kinetic pathways different from conventional methods. The most common methods of synthesis of iron oxide particles are solid state transformation and precipitation from iron salts.
Aim of this work is to check influence of several parameters namely the power, pH, concentration of iron salts (ferric chloride and ferrous sulfate), citrate ions and addition of cobalt on the size distribution and magnetic properties of particles obtained by MDHS.

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Presentation: poster at E-MRS Fall Meeting 2003, Symposium F, by Robert Fedyk
See On-line Journal of E-MRS Fall Meeting 2003

Submitted: 2003-06-02 15:48
Revised:   2003-06-02 15:53
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