Huiyan WU, Junheng YINGSU, Yiyang LIU, Hailong HUANG, Min GE, Yuan QIAN, Xiaobin FU, Hongtao LIU. In-situ high-temperature NMR spectroscopy and its applications in molten salt ionic structure studies[J]. NUCLEAR TECHNIQUES, 2023, 46(3): 030605
- NUCLEAR TECHNIQUES
- Vol. 46, Issue 3, 030605 (2023)
Fig. 1. Illustration of the laser heating method used in HT-NMR spectroscopy
Fig. 2. Design drawing of the inner tube of the proposed high-temperature sample cell
Fig. 3. Photos of the complete inner Al2O3 and AlN tubes (a), outer ZrO2 tubes (b), and assembled sample container (c)
Fig. 4. (a) 79Br NMR spectra of the KBr at different laser power, (b) Fitting curve of laser power and temperature
Fig. 5. Temperature fitting curve and average curve of laser power in three experiments using sample container composed of an outer ZrO2 tube and inner AlN tube
Fig. 6. Temperature fitting curve and average curve of laser power using sample container composed of an outer ZrO2 tube and inner BN tube (a) and Al2O3 (b) tube
Fig. 7. 35Cl HT-NMR spectra of the LiCl-KCl molten salt in the temperature range of 25 ℃ to 469 ℃
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