Sonochemical synthesis under a magnetic field: Structuring magnetite nanoparticles and the destabilization of a colloidal magnetic aqueous solution under a magnetic field

被引：25

作者：

Abu-Much, R. ^{[1
,2
]}

Gedanken, A. ^{[1
,2
]}

机构：

[1] Bar Ilan Univ, Dept Chem, IL-52900 Ramat Gan, Israel

[2] Bar Ilan Univ, Kanbar Lab Nanomat, Bar Ilan Univ Ctr Adv Mat & Nanotechnol, IL-52900 Ramat Gan, Israel

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 01期

关键词：

D O I：

10.1021/jp075637k

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：

This work is devoted to the investigation of the effect of an external magnetic field (NIF) applied to a sonochemical synthesis. The paper presents results on the preparation of both aggregated magnetite nanoparticles and the destabilization of a magnetite hydrosol that is formed without a MF. The results reveal a difference in morphology, size, and magnetic properties of the product obtained under a MF. They also show that the applied magnetic field affects the stabilization mechanism of the magnetite particles in an aqueous solution and destroys the stable hydrosol formed without a NIF. Instead, the formation of tree-like, aggregated structures composed of small particles is observed.

引用

页码：35 / 42

页数：8

共 64 条

[1] Formation of a three-dimensional microstructure of Fe3O4-poly(vinyl alcohol) composite by evaporating the hydrosol under a magnetic field [J].