Understanding the retention of hydrogen isotopes in liquid metals, such as lithium and tin, is of great importance in designing a liquid plasma-facing component in fusion reactors. However, experimental diffusivity data of hydrogen isotopes in liquid metals are still limited or controversial. We employ first-principles molecular dynamics simulations to predict diffusion coefficients of deuterium in liquid tin at temperatures ranging from 573 to 1673 K. Our simulations indicate faster diffusion of deuterium in liquid tin than the self-diffusivity of tin. In addition, we find that the structural and dynamic properties of tin are insensitive to the inserted deuterium at temperatures and concentrations considered. We also observe that tin and deuterium do not form stable solid compounds. These predicted results from simulations enable us to have a better understanding of the retention of hydrogen isotopes in liquid tin.
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14 August 2017
Research Article|
August 10 2017
First-principles molecular dynamics study of deuterium diffusion in liquid tin
Xiaohui Liu
;
Xiaohui Liu
a)
1
CAS Key Laboratory of Quantum Information, University of Science and Technology of China
, Hefei, Anhui 230026, People’s Republic of China
2
Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China
, Hefei 230026, China
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Daye Zheng;
Daye Zheng
a)
1
CAS Key Laboratory of Quantum Information, University of Science and Technology of China
, Hefei, Anhui 230026, People’s Republic of China
2
Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China
, Hefei 230026, China
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Xinguo Ren;
Xinguo Ren
1
CAS Key Laboratory of Quantum Information, University of Science and Technology of China
, Hefei, Anhui 230026, People’s Republic of China
2
Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China
, Hefei 230026, China
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Lixin He;
Lixin He
b)
1
CAS Key Laboratory of Quantum Information, University of Science and Technology of China
, Hefei, Anhui 230026, People’s Republic of China
2
Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China
, Hefei 230026, China
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Mohan Chen
Mohan Chen
c)
3
Department of Physics, Temple University
, Philadelphia, Pennsylvania 19122, USA
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J. Chem. Phys. 147, 064505 (2017)
Article history
Received:
May 21 2017
Accepted:
July 25 2017
Citation
Xiaohui Liu, Daye Zheng, Xinguo Ren, Lixin He, Mohan Chen; First-principles molecular dynamics study of deuterium diffusion in liquid tin. J. Chem. Phys. 14 August 2017; 147 (6): 064505. https://doi.org/10.1063/1.4997635
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