Issue 12, 2001
From the journal:

Journal of Materials Chemistry

Srinivasa Thimmaiah,a   Michael Rajamathi,b   Nikhil Singh,†a   Parthasarathi Bera,a   Fiona Meldrum,c   N. Chandrasekhar‡d  and  Ram Seshadria  

a Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, India
E-mail: seshadri@sscu.iisc.ernet.in
Fax: (91) 80 360 1310

b Department of Chemistry, St. Joseph's College, Bangalore, India

c Department of Chemistry, Queen Mary, University of London, Mile End Road, London, UK
E-mail: f.c.meldrum@qmul.ac.uk

d School of Physics and Astronomy, University of Minnesota, 116 Church St. SE, Minneapolis, USA
E-mail: nchandra@physics.umn.edu

Abstract

The decomposition of single or multiple transition metal cupferron complexes in organic solvents under solvothermal conditions and in the presence of long chain amines yields the corresponding oxide nanoparticles. The examples presented here are maghemite γ-Fe2O3 nanoparticles from an FeIII–cupferron complex and spinel CoFe2O4 nanoparticles starting from CoII–cupferron complex and FeIII–cupferron complex taken in suitable proportions. The nanoparticles are capped with n-octylamine or n-dodecylamine. The presence of amine in the reaction is found to be essential for the formation of the product. The magnetic behavior of pressed pellets of these nanoparticles is presented.

Graphical abstract: A solvothermal route to capped nanoparticles of γ-Fe2O3 and CoFe2O4

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Article information

DOI
https://doi.org/10.1039/B104070G
Article type
Paper
Submitted
09 May 2001
Accepted
14 Aug 2001
First published
18 Oct 2001

J. Mater. Chem., 2001,11, 3215-3221

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A solvothermal route to capped nanoparticles of γ-Fe2O3 and CoFe2O4

S. Thimmaiah, M. Rajamathi, N. Singh, P. Bera, F. Meldrum, N. Chandrasekhar and R. Seshadri, J. Mater. Chem., 2001, 11, 3215 DOI: 10.1039/B104070G

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