Synthesis of Fe3O4 hollow microsphere chains and their magnetic properties

被引:7
作者
Bi, Huiyun [1 ]
Wang, Xiaoqing [1 ]
Li, Haibo [1 ]
Xi, Baojuan [1 ]
Zhu, Yongchun [1 ]
Qian, Yitai [1 ]
机构
[1] Univ Sci & Technol China, Dept Chem, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
关键词
Nanostructures; Chemical synthesis; Scanning and transmission electron microscopy; Magnetic property; GROWTH; NANOSTRUCTURES; NANOPARTICLES; NANOCRYSTALS; FABRICATION;
D O I
10.1016/j.ssc.2009.07.053
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Fe3O4 hollow microsphere chains with lengths of 8-11 mu m have been solvothermally synthesized in the mixed solution of glycerol and water with 1 M NaOH. The hollow microspheres have diameters in the range 0.7-1 mu m, and the thickness of the shells is 150-300 nm. The shell of the hollow microspheres is constructed by octahedrons of 100-170 nm. However, when the concentration of NaOH is adjusted to 3 M, the octahedron chains with lengths of 30-50 mu m can be obtained. The magnetic saturation values of hollow microsphere chains and octahedron chains are 88.1 and 102.4 emu/g at room temperature, respectively. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2115 / 2119
页数:5
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