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Silica Coating on Colloidal Maghemite Particles

✍ Scribed by Michaela Klotz; André Ayral; Christian Guizard; Christine Ménager; Valérie Cabuil

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
63 KB
Volume
220
Category
Article
ISSN
0021-9797

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✦ Synopsis

Maghemite colloidal particles are coated with a silica layer using a silicon alkoxide as silica precursor. The coating process is studied by electrophoresis, quasi-elastic light scattering, nitrogen adsorption, and infrared spectrometry analyses. The conditions of complete coverage of the iron oxide particles by silica and the nature of the maghemite-silica interface are discussed. Copyright 1999 Academic Press.

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