Electronic structure studies of the spinel CoFe(2)O(4) by X-ray photoelectron spectroscopy

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	Electronic structure studies of the spinel CoFe(2)O(4) by X-ray photoelectron spectroscopy; Electronic structure studies of the spinel CoFe(2)O(4) by X-ray photoelectron spectroscopy
	Z. P. Zhou; Y. Zhang; Z. Y. Wang; W. Wei; W. F. Tang; J. Shi; R. Xiong
	2008 ; 2008
发表期刊	Applied Surface Science ; Applied Surface Science
ISSN	0169-4332 ; 0169-4332
卷号	254 期号:21 页码:6972-6975
摘要	The spinel CoFe(2)O(4) has been synthesized by combustion reaction technique. X-ray photoelectron spectroscopy shows that samples are near-stoichiometric, and that the specimen surface both in the powder and bulk sample is most typically represented by the formula (Co(0.4)Fe(0.6))[Co(0.6)Fe(1.4)]O(4), where cations in parentheses occupy tetrahedral sites and those within square brackets in octahedral sites. The results demonstrate that most of the iron ions are trivalent, but some Fe(2+) may be present in the powder sample. The Co 2p(3/2) peak in powder sample composed three peaks with relative intensity of 45%, 40% and 15%, attributes to Co(2+) in octahedral sites, tetrahedral sites and Co(3+) in octahedral sites. The O 1s spectrum of the bulk sample is composed of two peaks: the main lattice peak at 529.90 eV, and a component at 531.53 eV, which is believed to be intrinsic to the sample surface. However, the vanishing of the O 1s shoulder peak of the powder specimen shows significant signs of decomposition. (C) 2008 Elsevier B. V. All rights reserved.; The spinel CoFe(2)O(4) has been synthesized by combustion reaction technique. X-ray photoelectron spectroscopy shows that samples are near-stoichiometric, and that the specimen surface both in the powder and bulk sample is most typically represented by the formula (Co(0.4)Fe(0.6))[Co(0.6)Fe(1.4)]O(4), where cations in parentheses occupy tetrahedral sites and those within square brackets in octahedral sites. The results demonstrate that most of the iron ions are trivalent, but some Fe(2+) may be present in the powder sample. The Co 2p(3/2) peak in powder sample composed three peaks with relative intensity of 45%, 40% and 15%, attributes to Co(2+) in octahedral sites, tetrahedral sites and Co(3+) in octahedral sites. The O 1s spectrum of the bulk sample is composed of two peaks: the main lattice peak at 529.90 eV, and a component at 531.53 eV, which is believed to be intrinsic to the sample surface. However, the vanishing of the O 1s shoulder peak of the powder specimen shows significant signs of decomposition. (C) 2008 Elsevier B. V. All rights reserved.
部门归属	[zhou, zhongpo; zhang, yue; wang, ziyu; wei, wei; tang, wufeng; shi, jing; xiong, rui] wuhan univ, dept phys, wuhan 430072, peoples r china. [zhou, zhongpo; zhang, yue; wang, ziyu; wei, wei; tang, wufeng; shi, jing; xiong, rui] wuhan univ, key lab acoust & photon mat & devices, minist educ, wuhan 430072, peoples r china. [shi, jing] acad sinica, int ctr mat phys, shenyang 110015, peoples r china. [xiong, rui] hubei key lab organ & polymer optoelect mat, wuhan 430072, peoples r china.;xiong, r (reprint author), wuhan univ, dept phys, wuhan 430072, peoples r china;xiongrui@whu.edu.cn ; [zhou, zhongpo; zhang, yue; wang, ziyu; wei, wei; tang, wufeng; shi, jing; xiong, rui] wuhan univ, dept phys, wuhan 430072, peoples r china. [zhou, zhongpo; zhang, yue; wang, ziyu; wei, wei; tang, wufeng; shi, jing; xiong, rui] wuhan univ, key lab acoust & photon mat & devices, minist educ, wuhan 430072, peoples r china. [shi, jing] acad sinica, int ctr mat phys, shenyang 110015, peoples r china. [xiong, rui] hubei key lab organ & polymer optoelect mat, wuhan 430072, peoples r china.;xiong, r (reprint author), wuhan univ, dept phys, wuhan 430072, peoples r china;xiongrui@whu.edu.cn
关键词	Cofe(2)o(4) Cofe(2)o(4) Electronic Structure Electronic Structure Xps Xps Chemical State Chemical State Cobalt Ferrite Nanoparticles Cobalt Ferrite Nanoparticles Substituted Magnetite Substituted Magnetite High Coercivity High Coercivity Anisotropy Anisotropy Nanostructures Nanostructures Surface Surface Growth Growth
URL	查看原文 ; 查看原文
WOS记录号	WOS:000258997700051 ; WOS:000258997700051
引用统计	被引频次：368[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/321006/33402
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. P. Zhou,Y. Zhang,Z. Y. Wang,et al. Electronic structure studies of the spinel CoFe(2)O(4) by X-ray photoelectron spectroscopy, Electronic structure studies of the spinel CoFe(2)O(4) by X-ray photoelectron spectroscopy[J]. Applied Surface Science, Applied Surface Science,2008, 2008,254, 254(21):6972-6975, 6972-6975.
APA	Z. P. Zhou.,Y. Zhang.,Z. Y. Wang.,W. Wei.,W. F. Tang.,...&R. Xiong.(2008).Electronic structure studies of the spinel CoFe(2)O(4) by X-ray photoelectron spectroscopy.Applied Surface Science,254(21),6972-6975.
MLA	Z. P. Zhou,et al."Electronic structure studies of the spinel CoFe(2)O(4) by X-ray photoelectron spectroscopy".Applied Surface Science 254.21(2008):6972-6975.