Amino-acid-assisted synthesis and size-dependent magnetic behaviors of hematite nanocubes

被引：32

作者：

Cao, Huaqiang ^{[1
,2
]}

Wang, Guozhi ^{[1
]}

Warner, Jamie H. ^{[2
]}

Watt, Andrew A. R. ^{[2
]}

机构：

[1] Tsing Hua Univ, Dept Chem, Beijing 100084, Peoples R China

[2] Univ Oxford, Dept Mat, Oxford OX1 3PH, England

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 01期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2830699

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This article reports the amino-acid-assisted synthesis and size-dependent magnetic properties of hematite nanocubes. The products were characterized using x-ray diffraction, Raman spectroscopy, transmission electron microscopy (TEM), and high-resolution TEM. The magnetic behavior of hematite nanocubes was studied using a vibrating sample magnetometer at room temperature. The sizes of hematite nanocubes were controlled by tuning the reaction parameters. The amino acid has double-hydrophilic functional groups, -NH(2) and -COOH, which are utilized to control the growth and final size of hematite nanocubes. We show that utilizing biomolecules in chemical synthesis is a useful method for tailoring the physical properties of nanomaterials. (C) 2008 American Institute of Physics.

引用

页数：3

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