| 학회 |
한국화학공학회 |
| 학술대회 |
2013년 봄 (04/24 ~ 04/26, 광주 김대중컨벤션센터) |
| 권호 |
19권 1호, p.545 |
| 발표분야 |
에너지 |
| 제목 |
Temperature-Dependent Release of Guest Molecules and Structral Transformation of Hydroquinone Clathrate |
| 초록 |
The structural transformations and guest dynamics of guest-loaded compounds(CO2-, CH4-, and CO2/CH4-loaded β-form hydroquinone (HQ) clathrates) in which gases were encapsulated and guest-free compounds(although there were no gases encapsulated in the host framework, the compound was characterized by a specific space) were evaluated using X-ray diffraction and Raman spectroscopy. In addition, temperature-dependent Raman spectra were measured in the temperature range 300–385 K at increments of 5 K. The CH4 molecules rapidly escaped from the β-form HQ clathrate in the temperature range 360 to 380 K, whereas the CO2 molecules were gradually released from the β-form HQ clathrate framework in the wide temperature range 300 to 380 K. It was also found that both CO2 and CH4 molecules were rapidly released from the CO2/CH4-loaded β-form HQ clathrate framework in the temperature range 360 to 380 K. However, all of the guest-free and guest-loaded β-form HQ clathrates revealed fully converted to the α-form HQ clathrate temperature at 385 K. These results demonstrate the strong effect of temperature on both guest–host interactions and the stability of the framework structure. |
| 저자 |
박정우, 김병수, 안슬기, 서영록, 이창호, 윤지호
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| 소속 |
한국해양대 |
| 키워드 |
Clathrate; Hydroquinone; Raman spectroscopy; Structural transformation; Guest; Host
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| E-Mail |
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| 원문파일 |
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