Tuning of γ-Fe2O3 particle sizes by impregnation of mesoporous silica

被引：13

作者：

Cannas, C

Musu, E

Musinu, A

Piccaluga, G

Spano, G

机构：

[1] Cittadella Univ Monserrato, Dipartimento Sci Chim, I-09042 Monserrato, CA, Italy

[2] Univ Cagliari, Dipartimento Fis, I-09042 Monserrato, CA, Italy

[3] Univ Cagliari, Ist Nazl Fis Mat, I-09042 Monserrato, CA, Italy

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2004年 / 345卷

关键词：

D O I：

10.1016/j.jnoncrysol.2004.08.248

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A wet impregnation procedure of preformed silica matrices with different porosity and surface area resulted in the successful tailoring of the maghemite particle size. The magnetic features of the maghemite nanoparticles were checked by Mossbauer spectroscopy. Transmission electron microscopy and nitrogen physisorption measurements allowed the determination of a relationship between maghemite particle size and the porous features of the support matrix. (C) 2004 Elsevier B.V. All rights reserved.

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收藏

页码：653 / 657

页数：5

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