Journal
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
Volume -, Issue 25, Pages 4019-4023Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejic.200800432
Keywords
nanostructures; template synthesis; magnetic materials; mesoporous materials
Categories
Funding
- National Natural Science Foundation of China [20671057]
- Program for New Century Excellent Talents in the University (P. R. China)
- Doctoral Foundation of Shandong Province [2007BS04042]
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CoFe2O4 hollow spheres with sizes ranging from 600 nm to I pm were prepared through hydrothermal treatment of an aqueous solution containing glucose, ammonium iron(II) sulfate hexahydrate [(NH4)(2)Fe(SO4)(2)center dot 6H(2)O], and cobalt(Il) sulfate heptahydrate [COSO4 center dot 7H(2)O], followed by calcination. The wall of the CoFe2O4 hollow spheres is composed of CoFe2O4 spinel nanoparticles with a size of ca. 30 nm and wall thickness of ca. 150 nm. Magnetic characterization indicates high coercivity and low saturation magnetization, which indicate potential applications as high-density magnetic recording materials and drug carriers. ((c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008).
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