Issue 8, 2003

Solvothermal reduction synthesis and characterization of superparamagnetic magnetite nanoparticles

Abstract

Magnetite nanoparticles were prepared through a solvothermal reduction approach in the presence of ethylene glycol, oleic acid and trioctylphosphine oxide or hexadecylamine. The size of the magnetite nanoparticles can be controlled easily through tailoring surfactants in the system. Transmission electron microscopy images indicate that the average sizes of magnetite nanoparticles are 8 and 11 nm, depending on the surfactant. The far IR spectra further demonstrate that the products are magnetite instead of hematite. Superparamagnetism and the effect of σ-donor and π-acceptor type surfactants on the magnetic properties of the nanoscale materials have been investigated.

Graphical abstract: Solvothermal reduction synthesis and characterization of superparamagnetic magnetite nanoparticles

Supplementary files

Article information

Article type
Paper
Submitted
16 May 2003
Accepted
10 Jun 2003
First published
24 Jun 2003

J. Mater. Chem., 2003,13, 1983-1987

Solvothermal reduction synthesis and characterization of superparamagnetic magnetite nanoparticles

Y. Hou, J. Yu and S. Gao, J. Mater. Chem., 2003, 13, 1983 DOI: 10.1039/B305526D

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