Magnetic diphase nanostructure of ZnFe2O4/gamma-Fe2O3

	Magnetic diphase nanostructure of ZnFe2O4/gamma-Fe2O3
	X. X. Bo ; G. S. Li ; X. Q. Qiu ; Y. F. Xue ; L. P. Li
刊名	Journal of Solid State Chemistry
	2007-03
卷号	180 期号:3 页码:1038-1044
关键词	solvothermal ZnFe2O4 gamma-Fe2O3 diphase nanostructure superparamagnetic nonstoichiometric zinc ferrite ni-zn ferrites hydrothermal synthesis amorphous silica finite-size maghemite nanoparticles gamma-fe2o3 hematite znfe2o4
ISSN号	0022-4596
中文摘要	Magnetic diphase nanostructures of ZnFe2O4/gamma-Fe2O3 were synthesized by a solvothermal method. The formation reactions were optimized by tuning the initial molar ratios of Fe/Zn. All samples were characterized by X-ray diffraction, thermogravimetric analysis, infrared spectroscopy, and Raman spectra. It is found that when the initial molar ratio of Fe/Zn is larger than 2, a diphase magnetic natiostructure of ZnFe2O4/gamma-Fe2O3 was formed, in which the presence of ZnFe2O4 enhanced the thermal stability of gamma-Fe2O3. Further increasing the initial molar ratio of Fe/Zn larger than 6 destabilized the diphase nanostructure and yielded traces of secondary phase alpha-Fe2O3. The grain surfaces of diphase nanostructure exhibited a spin-glass-like structure. At room temperature, all diphase nanostructures are superparamagnetic with saturation magnetization being increased with gamma-Fe2O3 content. (c) 2007 Elsevier Inc. All rights reserved.
语种	英语
公开日期	2013-04-01
内容类型	期刊论文
源URL	[http://ir.fjirsm.ac.cn/handle/350002/6112]
专题	福建物质结构研究所_中科院福建物质结构研究所_期刊论文
推荐引用方式 GB/T 7714	X. X. Bo,G. S. Li,X. Q. Qiu,et al. Magnetic diphase nanostructure of ZnFe2O4/gamma-Fe2O3[J]. Journal of Solid State Chemistry,2007,180(3):1038-1044.
APA	X. X. Bo,G. S. Li,X. Q. Qiu,Y. F. Xue,&L. P. Li.(2007).Magnetic diphase nanostructure of ZnFe2O4/gamma-Fe2O3.Journal of Solid State Chemistry,180(3),1038-1044.
MLA	X. X. Bo,et al."Magnetic diphase nanostructure of ZnFe2O4/gamma-Fe2O3".Journal of Solid State Chemistry 180.3(2007):1038-1044.