| 학회 | 한국화학공학회 |
| 학술대회 | 2009년 가을 (10/22 ~ 10/23, 일산 KINTEX) |
| 권호 | 15권 2호, p.2000 |
| 발표분야 | 열역학 |
| 제목 | Metastability of Ethane Hydrate Containing Cobalt Complex and Base |
| 초록 | Gas hydrate is a kind of inclusion compounds, which is composed of host water framework and guest gas molecules. Ethane gas is known to make structure-I hydrate only without other guests such as THF or methane. In this study, we examined complex added ethane hydrate system using solid state NMR and dispersive Raman spectroscopy and neutron powder diffraction. Cobalt (III) hexamine complex with some small anions such as OH- and F- was found to induce ethane hydrate to structure-II in the early stage of hydrate formation and this unexpected metastable structure, obviously due to complex encagement, was preserved for remarkably long time comparing to other metastable hydrate phases. The present findings show a possibility for usage of complex ion as a new guest and might provide new insights on structure modification and metastability in clathrate hydrate fields. |
| 저자 | 신웅철 , 신규철 , 설지웅 , 이 흔 |
| 소속 | KAIST |
| 키워드 | gas hydrate ; metastability ; ethane hydrate ; NMR |
| VOD | VOD 보기 |
| 원문파일 | 초록 보기 |
