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

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 p...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2002-05 (10), p.1152-1153
Main Authors: Rajamathi, Michael, Ghosh, Moumita, Seshadri, Ram
Format: Article
Language:English
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Summary: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 approximately 5 nm gamma-Fe2O3 particles that display a tendency to aggregate into superlattices.
ISSN:1359-7345
1364-548X
DOI:10.1039/b202327j