One-Pot Reaction and Subsequent Annealing to Synthesis Hollow Spherical Magnetite and Maghemite Nanocages

被引：54

作者：

Wu, Wei ^{[1
,2
,3
]}

Xiao, Xiangheng ^{[2
,3
]}

Zhang, Shaofeng ^{[2
]}

Li, Hang ^{[2
]}

Zhou, Xiaodong ^{[2
]}

Jiang, Changzhong ^{[1
,2
,3
]}

机构：

[1] Wuhan Univ, Minist Educ, Key Lab Acoust & Photon Mat & Devices, Wuhan 430072, Peoples R China

[2] Wuhan Univ, Dept Phys, Wuhan 430072, Peoples R China

[3] Wuhan Univ, Ctr Electron Microscopy, Wuhan 430072, Peoples R China

来源：

NANOSCALE RESEARCH LETTERS | 2009年 / 4卷 / 08期

关键词：

Magnetite; Maghemite; Sol-gel growth; Nanocages; IRON-OXIDE NANOPARTICLES; FUNCTIONALIZATION; PARTICLES; DELIVERY; CORE;

D O I：

10.1007/s11671-009-9342-6

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Water-soluble hollow spherical magnetite (Fe3O4) nanocages (ca. 100 nm) with high saturation magnetization are prepared in a one-pot reaction by sol-gel method and subsequent annealing to synthesise the maghemite (gamma-Fe2O3) nanocages with similar nanostructures. The nanocages have been investigated by powder X-ray diffraction (XRD), transmission electron microscope (TEM), high-resolution transmission electron microscope (HRTEM), and superconducting quantum interference device (SQUID). The results indicated that glutamic acid played an important role in the formation of the cage-like nanostructures.

引用

页码：926 / 931

页数：6

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