Synthesis, structure and magnetic properties of SiO2-coated Fe nanocapsules

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	Synthesis, structure and magnetic properties of SiO2-coated Fe nanocapsules
	X. F. Zhang ; X. L. Dong ; H. Huang ; B. Lv ; X. G. Zhu ; J. P. Lei ; S. Ma ; W. Liu ; Z. D. Zhang
刊名	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
	2007
卷号	454 页码:211-215
关键词	physical vapor deposition nanocapsules VLS mechanism magnetic properties sol-gel method arc-discharge fe/sio2 nanocomposites fe-co(c) nanocapsules oxide nanoparticles silica particles nanowires colloids methane
ISSN号	0921-5093
中文摘要	SiO2-coated Fe nanocapsules were synthesized by arc-discharge method using micron-sized powders as the raw materials. It was shown that most of nanocapsules were spherical with a "core/shell" type structure. The shell was an amorphous SiO2 with around 10-20 nm in thickness and the core was a ferromagnetic Fe. The unique morphologies of the nanocapsules implied that the growth was governed by an extended mechanism of the vapor-liquid-solid (VLS) with the existence of stoichiometric oxygen. The Fe core was in a BCC structure and may play as a catalyst. This kind of "core/shell" type nano-composite can involve multi-loss mechanisms for electromagnetic wave absorption and open a way to synthesizing serials of new "core/shell" (metallic/dielectric) type nano-composites. (C) 2006 Elsevier B.V. All rights reserved.
原文出处	://WOS:000245898500029
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/34050]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	X. F. Zhang,X. L. Dong,H. Huang,et al. Synthesis, structure and magnetic properties of SiO2-coated Fe nanocapsules[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2007,454:211-215.
APA	X. F. Zhang.,X. L. Dong.,H. Huang.,B. Lv.,X. G. Zhu.,...&Z. D. Zhang.(2007).Synthesis, structure and magnetic properties of SiO2-coated Fe nanocapsules.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,454,211-215.
MLA	X. F. Zhang,et al."Synthesis, structure and magnetic properties of SiO2-coated Fe nanocapsules".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 454(2007):211-215.