A step toward better understanding of behavior of organic materials at simultaneous high pressures and high temperatures
A step toward better understanding of behavior of organic materials at simultaneous high pressures and high temperatures
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DOI：
10.1080/08957959.2018.1476506
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发表时间：
2018-05
影响因子：
2
通讯作者：
N. Chertkova;H. Ohfuji;R. Nomura;H. Kadobayashi;T. Irifune
中科院分区：
文献类型：
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作者：
N. Chertkova;H. Ohfuji;R. Nomura;H. Kadobayashi;T. Irifune
摘要 使用专为杠杆式金刚石砧室设计的外部加热系统，我们首次研究了 C2H2O4 系统在温度超过 850°C 和压力高达 6.5 GPa 时的相关系。原位拉曼光谱用于表征观察到的高温相的结构特征，这些高温相在淬火和减压时转变为富含黑碳的材料。这项工作的结果为有机化合物在高温下的压力诱导聚合过程提供了见解。
ABSTRACT Using an external heating system, specifically designed for the lever-type diamond anvil cell, we investigated for the first time the phase relationships in the C2H2O4 system at temperatures exceeding 850°C and pressures up to 6.5 GPa. In situ Raman spectroscopy was applied for the characterization of structural features of observed high-temperature phases, which transformed to the black carbon-rich material upon quenching and decompression. Results of this work give insights on the pressure-induced polymerization process of organic compounds at high temperatures.