Hydrolysis and amine-capping in a glycol solvent as a route to soluble maghemite γ-Fe2O3 nanoparticles

Michael Rajamathi; Moumita Ghosh; Ram Seshadri

doi:10.1039/B202327J

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Hydrolysis and amine-capping in a glycolsolvent as a route to soluble maghemite γ-Fe₂O₃nanoparticles

Michael Rajamathi,^a Moumita Ghosh^b and Ram Seshadri^b

Author affiliations

^a Department of Chemistry, St. Joseph′s College, Bangalore, India

^b Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, India
E-mail: seshadri@sscu.iisc.ernet.in

Abstract

The preparation of capped metal oxide nanoparticles through the hydrolysis of metal salts is made arduous by the difficulty of dissolving long organic chain capping agents in water; by performing the reaction in propylene glycol under reflux, instead of water, we are able to hydrolyse FeCl₃ in the presence of n-octylamine to obtain (repeatedly) soluble, monodisperse ∼5 nm γ-Fe₂O₃ particles that display a tendency to aggregate into superlattices.

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Article information

DOI: https://doi.org/10.1039/B202327J
Article type: Communication
Submitted: 06 Mar 2002
Accepted: 15 Apr 2002
First published: 25 Apr 2002

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Chem. Commun., 2002, 1152-1153

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Hydrolysis and amine-capping in a glycol solvent as a route to soluble maghemite γ-Fe₂O₃ nanoparticles

M. Rajamathi, M. Ghosh and R. Seshadri, Chem. Commun., 2002, 1152 DOI: 10.1039/B202327J

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