In situ solidification of ionic liquid [EMIM][EtOSO3] from melt under high pressure

被引：7

作者：

Li, Haining ^{[1
]}

Zhang, Yunqiang ^{[1
]}

Zhu, Xiang ^{[1
]}

Cheng, Xuerui ^{[1
]}

Shao, Chunguang ^{[2
]}

Wu, Jie ^{[1
]}

Li, Junyu ^{[1
]}

Ren, Yufen ^{[1
]}

Wang, Zheng ^{[1
]}

Wang, Yongqiang ^{[1
]}

Yuan, Chaosheng ^{[1
]}

Su, Lei ^{[1
]}

机构：

[1] Zhengzhou Univ Light Ind, High Pressure Res Ctr Sci & Technol, Zhengzhou 450002, Peoples R China

[2] Zhengzhou Univ, Minist Educ, Key Lab Adv Mat Proc & Mold, Dept Engn Mech, Zhengzhou 450002, Peoples R China

来源：

HIGH PRESSURE RESEARCH | 2013年 / 33卷 / 04期

基金：

美国国家科学基金会;

关键词：

ionic liquid; Raman spectra; phase transition; high pressure; 1-ETHYL-3-METHYLIMIDAZOLIUM; CATALYSIS; RAMAN; SULFATE; SALTS; GPA;

D O I：

10.1080/08957959.2013.845666

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In situ solidification of 1-ethyl-3-methylimidazolium ethyl sulfate [EMIM][EtOSO3] from melt under high pressure has been investigated by using Raman spectroscopy. The results indicate that [EMIM][EtOSO3] might experience a phase transition at about 2.4 GPa upon compression, which could be identified as solidification to a superpressurized glass by pressure broadening of the sharp ruby R-1 fluorescence line. Upon cooling, it solidifies as a glassy state rather than crystallizes at low temperature down to 93 K. These facts are suggestive of a phase transition of liquid to a superpressurized glass induced by compression in [EMIM][EtOSO3], which is similar to the glassy state at low temperature.

引用

页码：751 / 759

页数：9

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