journal article·2020-09-03

Terahertz Signatures of Hydrate Formation in Alkali Halide Solutions

Ligang Chen, Guanhua Ren, Liyuan Liu, Pan Guo, Endong Wang, Lu Zhou, Zhongjie Zhu, Jianbing Zhang, Bin Yang, Wentao Zhang, Yanfeng Li, Weili Zhang, Yi Gao, Hongwei Zhao, Jiaguang Han

Publisher page

Abstract

We systematically studied the ability of 20 alkali halides to form solid hydrates in the frozen state from their aqueous solutions by terahertz time-domain spectroscopy combined with density functional theory (DFT) calculations. We experimentally observed the rise of new terahertz absorption peaks in the spectral range of 0.3–3.5 THz in frozen alkali halide solutions. The DFT calculations prove that the rise of observed new peaks in solutions containing Li +, Na +, or F – ions indicates the formation of salt hydrates, while that in other alkali halide solutions is caused by the splitting phonon modes of the imperfectly crystallized salts in ice. As a simple empirical rule, the correlation between the terahertz signatures and the ability of 20 alkali halides to form a hydrate has been established.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Methane Hydrates and Related Phenomena · Spectroscopy and Laser Applications · Molecular Spectroscopy and Structure

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Center for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin 300072, People’s Republic of China

Shanghai Advanced Research Institute Zhangjiang Lab, Chinese Academy of Sciences, Shanghai 201210, China

Division of Interfacial Water and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China

Faculty of Science and Engineering, University of Chester, Thornton Science Park, Chester, U.K. CH2 4NU

Guangxi Key Laboratory of Optoelectronic Information Processing, Guilin University of Electronic Technology, Guilin 541004, China

School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, United States

Funding

Natural Science Foundation of Tianjin City · Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China · National Defense Science and Technology Innovation Special Zone

References (48)

Show source-provided references
1. 10.1016/0016-7037(81)90084-310.1016/0016-7037(81)90084-3 ↗
2. 10.3189/S002214300021275610.3189/S0022143000212756 ↗
3. 10.1016/j.epsl.2018.10.00110.1016/j.epsl.2018.10.001 ↗
4. 10.1038/nature0297310.1038/nature02973 ↗
5. 10.1126/science.125805510.1126/science.1258055 ↗
6. 10.1089/ast.2009.042110.1089/ast.2009.0421 ↗
7. 10.5194/acp-12-1121-201210.5194/acp-12-1121-2012 ↗
8. 10.1126/science.112972610.1126/science.1129726 ↗
9. 10.1152/ajpcell.1984.247.3.C12510.1152/ajpcell.1984.247.3.C125 ↗
10. 10.1016/j.cryobiol.2012.11.00210.1016/j.cryobiol.2012.11.002 ↗
11. 10.1016/j.cryobiol.2014.04.01810.1016/j.cryobiol.2014.04.018 ↗
12. 10.1021/jp207216710.1021/jp2072167 ↗
13. 10.1139/cjc-2015-054710.1139/cjc-2015-0547 ↗
14. 10.1107/S056774087400713810.1107/S0567740874007138 ↗
15. 10.1021/acs.jpcc.6b0343110.1021/acs.jpcc.6b03431 ↗
16. 10.1107/S010827011302813810.1107/S0108270113028138 ↗
17. 10.1107/S205322961401800210.1107/S2053229614018002 ↗
18. 10.1107/S056774088200874710.1107/S0567740882008747 ↗
19. 10.1103/PhysRevLett.93.12550310.1103/PhysRevLett.93.125503 ↗
20. 10.1107/S205322961901467010.1107/S2053229619014670 ↗
21. 10.1039/tf971670343510.1039/tf9716703435 ↗
22. Lutz, H. D. In Solid Materials; Springer: Berlin, 1988; pp 97–125.10.1007/3-540-18790-1_3 ↗
23. 10.1021/jp904558m10.1021/jp904558m ↗
24. 10.1021/jp106050r10.1021/jp106050r ↗
25. 10.1021/jz200591v10.1021/jz200591v ↗
26. 10.1021/jp306240s10.1021/jp306240s ↗
27. Werhahn, J. C.; Xantheas, S. S.; Iglev, H. Research in Optical Sciences; Optical Society of America: Berlin, 2012; p JT2A.45.
28. 10.1063/1.500704010.1063/1.5007040 ↗
29. Maréchal Y. · 2007
30. 10.1021/ac200907z10.1021/ac200907z ↗
31. 10.1039/C1CS15277G10.1039/C1CS15277G ↗
32. 10.2116/analsci.24.18510.2116/analsci.24.185 ↗
33. 10.3390/cryst402007410.3390/cryst4020074 ↗
34. 10.1021/jacs.8b0782810.1021/jacs.8b07828 ↗
35. 10.1039/D0CP01571G10.1039/D0CP01571G ↗
36. 10.1063/1.156568010.1063/1.1565680 ↗
37. 10.1016/j.tca.2005.07.00610.1016/j.tca.2005.07.006 ↗
38. Brüesch P. · 1986
39. 10.3406/bulmi.1962.558010.3406/bulmi.1962.5580 ↗
40. Parker V. B. · 1965
41. 10.1126/science.aax323310.1126/science.aax3233 ↗
42. 10.1007/BF0289891010.1007/BF02898910 ↗
43. 10.1016/0022-3697(82)90215-310.1016/0022-3697(82)90215-3 ↗
44. 10.1107/S205322961800118310.1107/S2053229618001183 ↗
45. Peter Atkins, L. J. Chemical Principles: The Quest for Insight; Freeman: New York, 2009; pp 172–173.
46. 10.1063/1.55575710.1063/1.555757 ↗
47. 10.1088/0953-8984/20/11/11410810.1088/0953-8984/20/11/114108 ↗
48. 10.1039/C9CP05436G10.1039/C9CP05436G ↗