Silica coating on colloidal maghemite particles

被引：49

作者：

Klotz, M

Ayral, A

Guizard, C

Ménager, C

Cabuil, V

机构：

[1] ENSCM, Lab Mat & Proc Membranaires, CNRS, UMR 5635, F-34296 Montpellier 5, France

[2] Univ Paris 06, Lab Liquides Ion & Interfaces Chargees, CNRS, UMR 7612, F-75252 Paris, France

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1999年 / 220卷 / 02期

关键词：

maghemite; silica coating; zetametry; quasi-elastic light scattering; infrared spectrometry;

D O I：

10.1006/jcis.1999.6517

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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. (C) 1999 Academic Press.

引用

页码：357 / 361

页数：5

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