화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2008년 가을 (10/23 ~ 10/24, 부산 BEXCO)
권호 14권 2호, p.3150
발표분야 열역학
제목 Neutron Diffraction Study for Distinct Thermal Behavior of THF Clathrate Hydrate
초록 To answer the cage dynamics and unique host-guest interacting patterns appearing in the complex clathrate hydrate structures, identification of thermal-structural behaviour occurring between host and guest molecule is required. In this study, we investigated thermal patterns of THF + H2, D2, N2, and O2 clathrate hydrate by employing high-resolution neutron powder diffraction technique, and suggested the temperature and guest dependant behaviour of clathrate hydrate. In particular, THF + H2 clathrate hydrate exhibits a ‘plastic deformation’-like behavior by introducing thermal history. It was also emphasized that the coherent/incoherent scattering pattern depending on the guest molecule is remarkably influence on the thermal behavior, and it should be considered to understand structural and thermal features through neutron diffraction study.
저자 박영준1, 최용남2, 이 흔1
소속 1한국과학기술원, 2한국원자력(연)
키워드 gas hydrate; neutron diffraction; thermal expansivity; clathrate
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