Controlled synthesis of cobalt flowerlike architectures by a facile hydrothermal route

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	Controlled synthesis of cobalt flowerlike architectures by a facile hydrothermal route
	Y. J. Zhang; Y. Zhang; Z. H. Wang; D. Li; T. Y. Cui; W. Liu; Z. D. Zhang
	2008
发表期刊	European Journal of Inorganic Chemistry
ISSN	1434-1948
期号	17 页码:2733-2738
摘要	Cobalt flowerlike architectures composed of hexagonal nano-platelets have been synthesized by a simple hydrothermal. reduction method. The architectures are fabricated by the reaction Of COCl2 with NaOH at 140-180 degrees C in the presence of sodium dodecyl benzenesulfonate (SDBS), with NaH2PO2 center dot H2O as reducing agent. The diameters of the flowers range from 8 to 10 mu m, and the average thickness of the hexagonal sheets is about 100 nm. Higher reaction temperatures and the proper concentration of sodium hydroxide (NaOH) are key requirements for the fabrication of the flowerlike architectures. A growth mechanism for these architectures is proposed on the basis of the characterization by X-ray diffraction, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The magnetic hysteresis loops at 5 K and 295 K of the cobalt flowerlike architectures show ferromagnetic characteristics with coercivities of 371 Oe and 197 Oe, respectively. Our work may shed light on the designed fabrication of complex 3D architectures of other materials. (C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008.
部门归属	[zhang, ya-jing; zhang, ying; wang, zhen-hua; li, da; cui, tie-yu; liu, wei; zhang, zhi-dong] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [zhang, ya-jing; zhang, ying; wang, zhen-hua; li, da; cui, tie-yu; liu, wei; zhang, zhi-dong] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;zhang, yj (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;yjzhang@imr.ac.en
关键词	Hydrothermal Synthesis Cobalt Nanostructures Magnetic Properties Gold Nanoparticle Arrays Anisotropic Growth Self-organization Nanoplatelets Superlattices Nanocrystallites Superstructures Nanostructures Construction Aggregation
URL	查看原文
WOS记录号	WOS:000257045400013
引用统计	被引频次：27[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33351
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. J. Zhang,Y. Zhang,Z. H. Wang,et al. Controlled synthesis of cobalt flowerlike architectures by a facile hydrothermal route[J]. European Journal of Inorganic Chemistry,2008(17):2733-2738.
APA	Y. J. Zhang.,Y. Zhang.,Z. H. Wang.,D. Li.,T. Y. Cui.,...&Z. D. Zhang.(2008).Controlled synthesis of cobalt flowerlike architectures by a facile hydrothermal route.European Journal of Inorganic Chemistry(17),2733-2738.
MLA	Y. J. Zhang,et al."Controlled synthesis of cobalt flowerlike architectures by a facile hydrothermal route".European Journal of Inorganic Chemistry .17(2008):2733-2738.