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  • 02월 19일 10시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

대한화학회 제121회 학술발표회 및 총회 Selective hydrogen isotope separation via breathing transition in MIL-53(Al)

등록일
2018년 2월 6일 15시 13분 16초
접수번호
4246
발표코드
INOR.P-91 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 19일 (목요일) 11:00~12:30
발표형식
포스터
발표분야
Inorganic Chemistry
저자 및
공동저자
Jin Yeong Kim, Hoi Ri Moon*
Department of Chemistry, Ulsan National Institute of Science and Technology, Korea

Breathing of MIL-53(Al), a flexible metal–organic framework (MOF), leads to dynamic changes as narrow pore (np) transition to large pore (lp). During the flexible and reversible transition, the pore apertures are continuously adjusted, thus providing the tremendous opportunity to separate mixtures of similar-sized- and similar-shaped molecules that require precise pore tuning. Herein, for the first time, we report a strategy for effectively separating hydrogen isotopes through the dynamic pore change during the breathing of MIL-53(Al), representative of flexible MOF. The experiment shows that the selectivity for D2 over H2 is strongly related to the state of the pore structure of MIL-53(Al). The highest selectivity (SD2/H2 = 13.6 at 40 K) was obtained by optimizing the exposure temperature, pressure, and time to systematically tune the pore state of MIL-53(Al).

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