Facile One-Pot Synthesis of PbSe and NiSe(2) Hollow Spheres: Kirkendall-Effect-Induced Growth and Related Properties

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	Facile One-Pot Synthesis of PbSe and NiSe(2) Hollow Spheres: Kirkendall-Effect-Induced Growth and Related Properties
	G. Q. Zhang; W. Wang; Q. X. Yu; X. G. Li
	2009
发表期刊	Chemistry of Materials
ISSN	0897-4756
卷号	21 期号:5 页码:969-974
摘要	A facile one-pot polyol process for the synthesis of PbSe and NiSe(2) hollow spheres, using alpha-Se solid spheres as starting core materials was successfully developed. The careful characterization of the time-dependent products demonstrates that the Kirkendall effect could be the involved growth mechanism for the evolution process from Se solid spheres to PbSe and NiSe(2) hollow spheres, which is schematically illustrated as a two-stage temperature-controlled, Kirkendall-effect-directed formation. The microstructure analysis shows that both the PbSe and NiSe(2) hollow spheres are polycrystalline with cubic structure. The band gap of the PbSe hollow spheres exhibits a notable size effect, and the magnetic susceptibility of the NiSe2 hollow spheres is significantly increased compared with that of its bulk counterpart. This work indicates that the nonmetal Se solid spheres can act as an appropriate fast diffusion core material for hollow structure through Kirkendall effect in the solution phase method.
部门归属	[zhang, genqiang; wang, wei; yu, qingxuan; li, xiaoguang] univ sci & technol china, dept phys, hefei natl lab phys sci microscale, hefei 230026, peoples r china. [li, xiaoguang] acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;li, xg (reprint author), univ sci & technol china, dept phys, hefei natl lab phys sci microscale, hefei 230026, peoples r china;lixg@ustc.edu.cn
关键词	Quantum Dots Semiconductor Clusters Magnetic-properties Spherical Colloids Cation-exchange Shape Evolution Nanocrystals Size Nanoparticles Nanospheres
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32534
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	G. Q. Zhang,W. Wang,Q. X. Yu,et al. Facile One-Pot Synthesis of PbSe and NiSe(2) Hollow Spheres: Kirkendall-Effect-Induced Growth and Related Properties[J]. Chemistry of Materials,2009,21(5):969-974.
APA	G. Q. Zhang,W. Wang,Q. X. Yu,&X. G. Li.(2009).Facile One-Pot Synthesis of PbSe and NiSe(2) Hollow Spheres: Kirkendall-Effect-Induced Growth and Related Properties.Chemistry of Materials,21(5),969-974.
MLA	G. Q. Zhang,et al."Facile One-Pot Synthesis of PbSe and NiSe(2) Hollow Spheres: Kirkendall-Effect-Induced Growth and Related Properties".Chemistry of Materials 21.5(2009):969-974.