Guest-guest and guest-host interactions in ethanol, propan-1-ol, and propan-2-ol clathrate hydrate forming systems

被引：3

作者：

Yasuda, Keita ^{[1
,2
,3
]}

Ohmura, Ryo ^{[1
]}

Sum, Amadeu K. ^{[2
]}

机构：

[1] Keio Univ, Dept Mech Engn, Kohoku Ku, 3-14-1 Hiyoshi, Yokohama, Kanagawa 2238522, Japan

[2] Colorado Sch Mines, Chem & Biol Engn Dept, Hydrates Energy Innovat Lab, Golden, CO 80401 USA

[3] Univ Ryukyus, Sch Engn, Energy & Environm Program, 1 Senbaru, Nishihara, Okinawa 9020213, Japan

来源：

NEW JOURNAL OF CHEMISTRY | 2018年 / 42卷 / 09期

关键词：

SPECTROSCOPIC IDENTIFICATION; SPECTRAL FEATURES; PHASE-EQUILIBRIA; N-PROPANOL; METHANE; WATER; 2-PROPANOL; RAMAN; CONFIRMATION; ASSIGNMENT;

D O I：

10.1039/c8nj00750k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In the present study, Raman spectroscopic measurements were performed using clathrate hydrate samples composed of ethanol, propan-1-ol, or propan-2-ol + deuterated methane + deuterium oxide. The temperature of the samples was stepwise increased from 93 K to 263 K in steps of 10 K or 20 K to decompose the clathrate hydrate samples during the measurements. The Raman spectra of the alcohols + deuterated methane hydrate sample in the C-H symmetric vibration region were similar to that of pure vapor alcohols, which indicates the weak guest alcohol-host water interaction although alcohols are hydrophilic compounds. In the propan-2-ol + deuterated methane + deuterium oxide system, the formation of two compounds having different composition from structure II propan-2-ol + deuterated methane clathrate hydrate was observed.

引用

页码：7364 / 7370

页数：7

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