Unusual Magnetic Properties of Size-Controlled Iron Oxide Nanoparticles Grown in a Nanoporous Matrix with Tunable Pores

被引：43

作者：

Alam, Sher ^{[1
]}

Anand, Chokkalingam ^{[1
,3
]}

Ariga, Katsuhiko ^{[1
]}

Mori, Toshiyuki ^{[2
]}

Vinu, Ajayan ^{[1
]}

机构：

[1] Natl Inst Mat Sci, WPI Res Ctr Mat Nanoarchitecton MANA, Int Ctr Mat Nanoarchitecton, Tsukuba, Ibaraki 3050044, Japan

[2] Natl Inst Mat Sci, Nanoion Mat Grp, Tsukuba, Ibaraki 3050044, Japan

[3] Anna Univ, Dept Chem, Madras 600025, Tamil Nadu, India

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2009年 / 48卷 / 40期

关键词：

iron; magnetic properties; mesoporous supports; nanostructures; silica; MESOPOROUS MOLECULAR-SIEVES; CRYSTALLINE;

D O I：

10.1002/anie.200901570

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Fully loaded: A facile nanosieve approach for the preparation of Fe 2O3 nanoparticles that have uniform and tunable sizes and are highly dispersed over a mesoporous support is achieved by the simple adjustment of the pore diameter of the template matrix (see picture). The nanoparticles are very small (6.5-9.0 nm) and show superior magnetic properties compared to pure Fe2O3 nanoparticles prepared without using a support. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：7358 / 7361

页数：4

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