黄艳萍：Structural transitions in NaNH2 via recrystallization under high pressure论文

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作者黄艳萍,黄晓丽,王鑫,张文亭,周迪,周强,刘冰冰,崔田（2019）在《Structural transitions in NaNH2 via recrystallization under high pressure》一文中研究指出：Multiple phase transitions are detected in sodium amide（NaNH2）, an important hydrogen storage material, upon compression in diamond anvil cells（DAC） by using Raman spectroscopy and x-ray diffraction（XRD） measurements.Additional Bragg reflections appear on lower and higher angle sides of the original ones at ～1.07 GPa and 1.84 GPa,accompanied by obvious changes in Raman spectroscopy, respectively.It reveals that NaNH2 undergoes the high-pressure phase sequence（α–β–γ） up to 20 GPa at room temperature.Spectral analysis indicates an orthorhombic structure with PBAN space group for the γ phase.We also experimentally observe high pressure induced recrystallization in alkaline amide compounds for the first time.

Abstract

Multiple phase transitions are detected in sodium amide（NaNH2）, an important hydrogen storage material, upon compression in diamond anvil cells（DAC） by using Raman spectroscopy and x-ray diffraction（XRD） measurements.Additional Bragg reflections appear on lower and higher angle sides of the original ones at ～1.07 GPa and 1.84 GPa,accompanied by obvious changes in Raman spectroscopy, respectively.It reveals that NaNH2 undergoes the high-pressure phase sequence（α–β–γ） up to 20 GPa at room temperature.Spectral analysis indicates an orthorhombic structure with PBAN space group for the γ phase.We also experimentally observe high pressure induced recrystallization in alkaline amide compounds for the first time.

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论文作者分别是来自Chinese Physics B的黄艳萍,黄晓丽,王鑫,张文亭,周迪,周强,刘冰冰,崔田，发表于刊物Chinese Physics B2019年09期论文，是一篇关于,Chinese Physics B2019年09期论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自Chinese Physics B2019年09期论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。

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