Surface characterisation of dextran-coated iron oxide nanoparticles prepared by laser pyrolysis and coprecipitation

被引：166

作者：

Bautista, MC ^{[1
]}

Bomati-Miguel, O ^{[1
]}

Morales, MD ^{[1
]}

Serna, CJ ^{[1
]}

Veintemillas-Verdaguer, S ^{[1
]}

机构：

[1] CSIC, Inst Ciencia Mat Madrid, E-28049 Madrid, Spain

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2005年 / 293卷 / 01期

关键词：

laser pyrolysis; iron oxide; nanoparticles; dextran coating; thermal analysis; infrared spectroscopy; maghemite;

D O I：

10.1016/j.jmmm.2005.01.038

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The favoured mechanism of adsorption of dextran on the surface of maghemite nanoparticles (5 nm) prepared by laser pyrolysis seems to be the collective hydrogen bonding between dextran hydroxyl groups and iron oxide particle surface. After heating, the formation of a surface complex between the polysaccharide oxygen atoms and the surface iron atoms gave rise to a stronger bonding. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：20 / 27

页数：8

共 22 条

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