Microwave absorption properties of Ni/(C, silicides) nanocapsules

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	Microwave absorption properties of Ni/(C, silicides) nanocapsules
	J. J. Jiang; H. Wang; H. H. Guo; T. Yang; W. S. Tang; D. Li; S. Ma; D. Y. Geng; W. Liu; Z. D. Zhang
	2012
发表期刊	Nanoscale Research Letters
ISSN	1931-7573
卷号	7 页码:41281
摘要	The microwave absorption properties of Ni/(C, silicides) nanocapsules prepared by an arc discharge method have been studied. The composition and the microstructure of the Ni/(C, silicides) nanocapsules were determined by means of X-ray diffraction, X-ray photoelectric spectroscopy, and transmission electron microscope observations. Silicides, in the forms of SiOx and SiC, mainly exist in the shells of the nanocapsules and result in a large amount of defects at the 'core/shell' interfaces as well as in the shells. The complex permittivity and microwave absorption properties of the Ni/(C, silicides) nanocapsules are improved by the doped silicides. Compared with those of Ni/C nanocapsules, the positions of maximum absorption peaks of the Ni/(C, silicides) nanocapsules exhibit large red shifts. An electric dipole model is proposed to explain this red shift phenomenon.
部门归属	[li, da] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;li, d (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china.;dali@imr.ac.cn
关键词	Microwave Absorption Properties Magnetic Nanocapsules Complex Permittivity Electric Dipole Model Carbon Nanotubes X-band Permittivity
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WOS记录号	BMC:10.1186/1556-276X-7-238
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60020
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. J. Jiang,H. Wang,H. H. Guo,et al. Microwave absorption properties of Ni/(C, silicides) nanocapsules[J]. Nanoscale Research Letters,2012,7:41281.
APA	J. J. Jiang.,H. Wang.,H. H. Guo.,T. Yang.,W. S. Tang.,...&Z. D. Zhang.(2012).Microwave absorption properties of Ni/(C, silicides) nanocapsules.Nanoscale Research Letters,7,41281.
MLA	J. J. Jiang,et al."Microwave absorption properties of Ni/(C, silicides) nanocapsules".Nanoscale Research Letters 7(2012):41281.