| 학회 | 한국재료학회 |
| 학술대회 | 2016년 가을 (11/16 ~ 11/18, 경주 현대호텔) |
| 권호 | 22권 2호 |
| 발표분야 | C. 에너지 재료 분과 |
| 제목 | Hybridization of Metal-Organic Frameworks and Nanomaterials for Energy Storage |
| 초록 | Metal-organic frameworks (MOFs) are typically synthesized into pure and bulk-sized crystals, and thus their usability is limited by the lack of compatibility with advanced technologies. Strategies to intermingle reticular chemistry and nanotechnology will lead to new forms of functional materials and applications. This talk will show how MOFs and nanomaterials can be combined into special constructs and successfully work together for supercapacitors We show that nanocrystalline metal-organic frameworks (nMOFs) can be doped with graphene and incorporated into devices to function as supercapacitors. A series of twenty-three different nMOFs with multiple organic functionalities and metal ions, differing pore sizes and shapes, discrete and infinite metal oxide backbones, large and small sized nanocrystals, and a variety of structure types are prepared and examined. We find that several members of this series give high capacitance; in particular, Zr6O4(OH)4(BPYDC)6 (BPYDC = 2,2′-bipyridine-5,5′-dicarboxylate, nMOF-867), which has sp2 nitrogen atoms in its organic link exhibits exceptionally high capacitance. nMOF-867 has a stack capacitance of 0.64 F cm–3 —a value that is twenty-six times that of the lowest performing nMOFs, and six times the supercapacitors made from the benchmark commercial activated carbon materials, and a performance that is preserved over at least 10,000 charge/discharge cycles. |
| 저자 | 최경민 |
| 소속 | 숙명여자대 |
| 키워드 | <P>Metal-Organic Frameworks; supercapacitors; Graphene</P> |
