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
收藏
页码：926 / 931
页数：6
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