Fabrication, magnetic properties and self-assembly of hierarchical crystalline hexapod magnetites

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	Fabrication, magnetic properties and self-assembly of hierarchical crystalline hexapod magnetites
	X. Z. Wang; J. S. Qiu; J. Y. Qu; Z. Y. Wang; D. S. Su
	2012
发表期刊	Rsc Advances
ISSN	2046-2069
卷号	2 期号:10 页码:4329-4334
摘要	We report a facile and surfactant-free solvothermal approach for the shape controlled synthesis of magnetite (Fe3O4). Hierarchical branched hexapod magnetites with various secondary structures can be prepared from ferrocene by using different solvents and tailoring experimental parameters. The as-prepared hexapods were characterized by X-ray diffraction, room temperature Fe-57 Mossbauer spectroscopy, and scanning and transmission electron microscopy. Compared with bulk magnetite, the obtained Fe3O4 hexapods are single crystals and exhibit different ferrimagnetic behavior with relatively high specific saturation magnetization (90-128 emu g(-1)) and large coercivity (223-238 Oe) values depending on their size and morphology. Self-organization of the shape-anisotropic hexapod crystals has been achieved for the first time by evaporation-mediated assembly. The well-defined hexapod Fe3O4 crystals will be attractive as promising building blocks for the bottom-up design of advanced materials and devices which may have applications in many fields.
部门归属	[wang, xuzhen; qiu, jieshan; qu, jiangying; wang, zhiyu] dalian univ technol, fac chem environm & biol sci & technol, carbon res lab, state key lab fine chem, dalian 116024, liaoning, peoples r china. [wang, xuzhen; qiu, jieshan; qu, jiangying; wang, zhiyu] dalian univ technol, fac chem environm & biol sci & technol, liaoning key lab energy mat & chem engn, dalian 116024, liaoning, peoples r china. [su, dangsheng] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;wang, xz (reprint author), dalian univ technol, fac chem environm & biol sci & technol, carbon res lab, state key lab fine chem, dalian 116024, liaoning, peoples r china.;jqiu@dlut.edu.cn
关键词	Oriented Attachment Fe3o4 Nanoparticles Oxide Nanocrystals Shape Control Iron-oxide Orientation Evolution Nanocubes Superlattices Nanoscale
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60321
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. Z. Wang,J. S. Qiu,J. Y. Qu,et al. Fabrication, magnetic properties and self-assembly of hierarchical crystalline hexapod magnetites[J]. Rsc Advances,2012,2(10):4329-4334.
APA	X. Z. Wang,J. S. Qiu,J. Y. Qu,Z. Y. Wang,&D. S. Su.(2012).Fabrication, magnetic properties and self-assembly of hierarchical crystalline hexapod magnetites.Rsc Advances,2(10),4329-4334.
MLA	X. Z. Wang,et al."Fabrication, magnetic properties and self-assembly of hierarchical crystalline hexapod magnetites".Rsc Advances 2.10(2012):4329-4334.