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Pressure-Induced Irreversible Phase Transition in the Energetic Material Urea Nitrate: Combined Raman Scattering and X-ray Diffraction Study
Li, Shourui; Li, Qian; Wang, Kai; Zhou, Mi; Huang, Xiaoli; Liu, Jing; Yang, Ke; Liu, Bingbing; Cui, Tian; Zou, Guangtian; Zou, Bo
2013
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
ISSN1932-7447
Volume117Issue:1Pages:CONCATENATE(Sheet1!I262,-Sheet1!J262)
AbstractIn situ high-pressure Raman spectroscopy and synchrotron X-ray diffraction (XRD) have been employed to investigate the behavior of the energetic material urea nitrate ((NH2)(2)COH+center dot NO3-, UN) up to the pressure of similar to 26 GPa. UN exhibits the typical supramolecular structure with the uronium cation and nitrate anion held together by multiple hydrogen bonds in the layer. The irreversible phase transition in the range similar to 9-15 GPa has been corroborated by experimental results and is proposed to stem from rearrangements of hydrogen bonds. Further analysis of XRD patterns indicates the new phase (phase II) has Pc symmetry. The retrieved sample is similar to 10.6% smaller than the ambient phase (phase I) in volume owing to the transformation from two-dimensional (2D) hydrogen-bonded networks to three-dimensional (3D) ones. The mechanism for the phase transition involves the cooperativity of noncovalent interactions under high pressure and distortions of the layered structure. This work suggests high pressure is an efficient technique to explore the performance of energetic materials, and to synthesize new phases with high density.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000313220700021
Citation statistics
Cited Times:34[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13865
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Li, Shourui,Li, Qian,Wang, Kai,et al. Pressure-Induced Irreversible Phase Transition in the Energetic Material Urea Nitrate: Combined Raman Scattering and X-ray Diffraction Study[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2013,117(1):CONCATENATE(Sheet1!I262,-Sheet1!J262).
APA Li, Shourui.,Li, Qian.,Wang, Kai.,Zhou, Mi.,Huang, Xiaoli.,...&Zou, Bo.(2013).Pressure-Induced Irreversible Phase Transition in the Energetic Material Urea Nitrate: Combined Raman Scattering and X-ray Diffraction Study.JOURNAL OF PHYSICAL CHEMISTRY C,117(1),CONCATENATE(Sheet1!I262,-Sheet1!J262).
MLA Li, Shourui,et al."Pressure-Induced Irreversible Phase Transition in the Energetic Material Urea Nitrate: Combined Raman Scattering and X-ray Diffraction Study".JOURNAL OF PHYSICAL CHEMISTRY C 117.1(2013):CONCATENATE(Sheet1!I262,-Sheet1!J262).
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