Abstract：Infrared and Raman spectroscopy are powerful technologies in metal hydrides structure analysis. If theoretical calculation is combined with Infrared and Raman analysis technology, they can provide information on the local bonding environment between metal atoms and hydrogen atoms of binary (MgH2, CaH2, AlH3) and ternary (Mg2FeH6) metal hydrides. Thereby, different phase structures of metal hydrides can be identified, they can also provide structure difference information in ternary metal hydride M2RuH6 (M=Ca, Sr, Eu) due to the different metal atom composition, and the structure differences between ternary metal hydride and deuteride also can be obtained. Moreover, the structure change of metal hydride can be monitored during compression and decompression by in situ Raman spectroscopy analysis, which helps us interpret diffraction data deeply. In order to avoid the disadvantageous effect of air and moisture on FTIR experiment results, PAIR spectrum was developed to increase the intensities of Infrared and Raman combination bands. Infrared and Raman spectroscopy even can be applied on metal tritides structure analysis, and it can provide the information on the local bonding differences between metal atoms and hydrogen isotopic atoms which helped us research the hydrogen isotopic effect better. Raman spectroscopy has also been used to in situ monitoring of the formation and decomposition of metal hydride under high pressure or high temperature, and has also been successfully applied in hydrogen isotope mixture gases analysis, such as tritium analysis and management in ITER project. If structure analysis is combined with hydrogen isotope mixture gas analysis by Infrared and Raman, the reaction kinetics and isotopic effect between metal and hydrogen isotope gases reaction can be researched.
陈 淼，彭述明，周晓松，龙兴贵，傅依备. 红外和拉曼光谱在金属氢化物结构分析中的应用[J]. 光谱学与光谱分析, 2018, 38(01): 8-14.
CHEN Miao, PENG Shu-ming, ZHOU Xiao-song, LONG Xing-gui, FU Yi-bei. Applications of Infrared and Raman Spectroscopy in Metal Hydrides and Deuterides Structure Analysis. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(01): 8-14.
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