Formation of amorphous hydrogenated carbon from compression of benzene
Formation of amorphous hydrogenated carbon from compression of benzene
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苯压缩形成无定形氢化碳
DOI：
10.1088/1742-6596/950/4/042057
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Mimura Koichi
中科院分区：
文献类型：
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作者：
Shinozaki Ayako;Kagi Hiroyuki;Mimura Koichi
用金刚石对顶砧装置在室温下测量了苯在25.3GPa压力下的红外光谱。当压力超过18.7GPa时，CH振动模式出现一个新的峰，其频率低于苯的振动模式。这表明在低于先前研究报告的压力下发生了不可逆的化学变化。压缩至20.3 GPa后回收样品的IR光谱与先前研究中报道的通过压缩苯至约30 GPa形成的无定形氢化碳的IR光谱相当。
Infrared spectra of benzene were measured at pressures up to 25.3 GPa at room temperature using a diamond anvil cell. With decompression from pressures above 18.7 GPa, a new peak of CH vibration mode appeared at a lower frequency than that of benzene. This indicates that an irreversible chemical change occurred at a pressure that was lower than that reported in previous studies. The IR spectra of the recovered sample after compression up to 20.3 GPa are comparable with those of the amorphous hydrogenated carbon reported in the previous study that was formed by compression of benzene up to approximately 30 GPa.