화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2021년 가을 (10/27 ~ 10/29, 광주 김대중컨벤션센터)
권호 27권 2호, p.1924
발표분야 열역학 분자모사
제목 Exploring Guest Inclusions and Interactions in a Binary Clathrate Hydrate of Cyclopentanemethanol and Methane
초록 In this study, cyclopentanemethanol (CPeM) was utilized as a new structure II (sII) hydrate former in the presence of methane (CH4) gas. Guest inclusions of interactions in a (CPeM + CH4) hydrate sample was identified with 13C solid-state nuclear magnetic resonance (NMR) and powder X-ray diffraction (PXRD). In NMR spectra, it was identified that CPeM and CH4 molecules were enclathrated in the large and small cages of sII hydrate, respectively. Especially, a possible conformation of CPeM molecule in large cages of sII hydrate was confirmed through conformational analysis of CPeM molecules. The crystal structure of the binary (CPeM + CH4) hydrate was refined with Rietveld method, indicating that the formation of sII hydrate with a lattice parameter of 17.28227 Å. In addition, the possible host–guest interactions in the binary (CPeM + CH4) hydrate were discussed.

KEYWORD Clathrate Hydrate, NMR, PXRD, Cyclopentanemethanol
저자 박기훈, 차민준, 김동현
소속 강원대
키워드 열역학
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