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  • 02월 28일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제123회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Mixed-Matrix Membranes with Hydrophilic Metal-Organic Polyhedra for Efficient CO2 Separation

등록일
2019년 2월 13일 11시 10분 37초
접수번호
4043
발표코드
INOR3-4 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 16시 : 00분
발표형식
심포지엄
발표분야
Inorganic Chemistry - Recent Trends in Supramolecular Chemistry
저자 및
공동저자
Hyunuk Kim
Energy Materials Laboratory, Korea Institute of Energy Research, Korea

Defect-free mixed-matrix membranes (MMMs) were prepared by incorporating hydrophilic metal-organic polyhedra (MOPs) into cross-linked polyethylene oxide (XLPEO) for efficient CO2 separation. Hydrophilic MOPs with triethylene glycol pendant groups, which were assembled by 5-tri(ethylene glycol) monomethyl ether isophthalic acid and Cu(II) ions, were uniformly dispersed in XLPEO without particle agglomeration. Comparing with conventional neat XLPEO, the homogenous dispersion of EG3 -MOPs in XLPEO enhanced CO2 permeability of MMMs. Upon increasing the amount of EG3 -MOPs, the membrane performance such as CO2 /N2 selectivity was steadily improved because of unsaturated Cu(II) sites at paddle-wheel units, which was confirmed by Cu K-edge XANES and TPD analysis. Therefore, such defect-free MMMs with unsaturated metal sites would contribute to enhance CO2 separation performance.


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