Mixed matrix membranes with a thermally rearranged polymer and ZIF-8 for hydrogen separation
- Title
- Mixed matrix membranes with a thermally rearranged polymer and ZIF-8 for hydrogen separation
- Author
- 이영무
- Keywords
- Thermally rearranged polymer; Zeolitic imidazole framework-8; Mixed matrix membranes; Gas separation; Hydrogen separation
- Issue Date
- 2019-07
- Publisher
- ELSEVIER SCIENCE BV
- Citation
- JOURNAL OF MEMBRANE SCIENCE, v. 582, Page. 381-390
- Abstract
- Mixed matrix membranes (MMMs) with a thermally rearranged (TR) polymer and zeolitic imidazolate framework- 8 (ZIF-8) were prepared in this study. ZIF-8 contributed to not only enhancing gas permeability, but also promoting thermal conversion of TR polymer membranes. As a result, TR ZIF-8 MMMs can be prepared at lower temperatures compared to the original TR polymers. The thermal rearrangement process also increased gas separation properties as it contributes to a tunable cavity size and hour-glass shape cavity distributions. Moreover, interfacial voids between the polymer phase and ZIF crystals which usually occur in most MMMs disappeared during thermal rearrangement of the TR polymer. As a result, the TR ZIF-8 MMMs showed excellent hydrogen separation properties with a H-2 permeability of 1,206 Barrer, H-2/N-2 selectivity of 22.3, and H-2/CH4 selectivity of 25.7.
- URI
- https://www.sciencedirect.com/science/article/pii/S0376738819304120?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/152156
- ISSN
- 0376-7388; 1873-3123
- DOI
- 10.1016/j.memsci.2019.04.029
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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