Local structure of uranium in polycrystalline alpha-U2N3+delta film probed by X-ray absorption spectroscopy

doi:10.1016/j.jnucmat.2020.152404

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Local structure of uranium in polycrystalline alpha-U2N3+delta film probed by X-ray absorption spectroscopy
	Bao, HL ; Zhong, HP ; Hu, Y ; Lin, J ; Yu, HS ; Ma, JY ; Tang, ZF ; Qian, Y ; Huang, YY ; Liu, KZ
刊名	JOURNAL OF NUCLEAR MATERIALS
	2020
卷号	542 页码:-
关键词	ELECTRONIC-STRUCTURE NITROGEN NITRIDE PHASE METAL CARBIDES DENSITY OXIDES UN
ISSN号	0022-3115
DOI	10.1016/j.jnucmat.2020.152404
文献子类	期刊论文
英文摘要	Knowledge of the local structure such as U-N interaction is a prerequisite for a better understanding of the physical and chemical properties of nitrogen-rich uranium nitrides. The local structure of U in polycrystalline alpha-U2N3+delta film was investigated by using X-ray absorption spectroscopy at the U L-3 edge combined with spectral calculation using FEFF 9.6 program based on the ab initio multiple scattering theory. The polycrystalline alpha-U2N3+delta sample was shown to be close to U2N3 with a narrow distribution of U-N bond lengths. The average valence of U was estimated to be 1.3 and the average bond distance of U-N was determined to be 2.30 A. The local structure of U in the alpha-U2N3+delta sample can be further specifically expressed by a U2N3 model with a lattice parameter of 10.69 (9) A where U1 atoms are surrounded by nitrogen atoms at similar to 2.277, similar to 2.295 and similar to 2.320 A. (C) 2020 Elsevier B.V. All rights reserved.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/32981]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Chinese Acad Sci, Shanghai Adv Res Inst, Zhangjiang Lab, Shanghai Synchrotron Radiat Facil,SSRF,ZJLab, Shanghai 201204, Peoples R China 2.China Acad Engn Phys, Inst Mat, Mianyang 621907, Sichuan, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Appl Phys, Key Lab Interfacial Phys & Technol, Shanghai 201800, Peoples R China
推荐引用方式 GB/T 7714	Bao, HL,Zhong, HP,Hu, Y,et al. Local structure of uranium in polycrystalline alpha-U2N3+delta film probed by X-ray absorption spectroscopy[J]. JOURNAL OF NUCLEAR MATERIALS,2020,542:-.
APA	Bao, HL.,Zhong, HP.,Hu, Y.,Lin, J.,Yu, HS.,...&Wang, JQ.(2020).Local structure of uranium in polycrystalline alpha-U2N3+delta film probed by X-ray absorption spectroscopy.JOURNAL OF NUCLEAR MATERIALS,542,-.
MLA	Bao, HL,et al."Local structure of uranium in polycrystalline alpha-U2N3+delta film probed by X-ray absorption spectroscopy".JOURNAL OF NUCLEAR MATERIALS 542(2020):-.