Local structure of uranium in polycrystalline α-U2N3+δ film probed by X-ray absorption spectroscopy
Local structure of uranium in polycrystalline α-U2N3+δ film probed by X-ray absorption spectroscopy
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X射线吸收光谱探测多晶α-U2N3 δ薄膜中铀的局域结构
DOI:
10.1016/j.jnucmat.2020.152404
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发表时间:
2020-12
影响因子:
3.1
通讯作者:
Jian-Qiang Wang
中科院分区:
文献类型:
--
作者:
Hongliang Bao;Huoping Zhong;Yin Hu;Jian Lin;Haisheng Yu;Jingyuan Ma;Zhengfeng Tang;Yuan Qian;Yuying Huang;Ke-Zhao Liu;Jian-Qiang Wang
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 α-U2N3+δfilm was investigated by using X-ray absorption spectroscopy at the UL3edge combined with spectral calculation using FEFF 9.6 program based on theab initiomultiple scattering theory. The polycrystalline α-U2N3+δsample was shown to be close to U2N3with 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 Å. The local structure of U in the α-U2N3+δsample can be further specifically expressed by a U2N3model with a lattice parameter of 10.69 (9) Å where U1 atoms are surrounded by nitrogen atoms at ∼2.277, ∼2.295 and ∼2.320 Å.
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影响因子:
3.1
作者:
K. Terrani;B. Jolly;J. Harp
通讯作者:
K. Terrani;B. Jolly;J. Harp
DOI:
10.1016/0022-1902(74)80220-4
发表时间:
1974-05
期刊:
Journal of Inorganic and Nuclear Chemistry
影响因子:
--
作者:
H. Tagawa;N. Masaki
通讯作者:
H. Tagawa;N. Masaki
影响因子:
3.7
作者:
E. L. Bright;R. Springell;D. Porter;S. Collins;G. Lander
通讯作者:
E. L. Bright;R. Springell;D. Porter;S. Collins;G. Lander
影响因子:
2.5
作者:
Ravel, B;Newville, M
通讯作者:
Newville, M
影响因子:
2.1
作者:
E. L. Bright;S. Rennie;M. Cattelan;Neil A. Fox;D. T. Goddard;R. Springell
通讯作者:
E. L. Bright;S. Rennie;M. Cattelan;Neil A. Fox;D. T. Goddard;R. Springell