Yeo, Hyeonuk Jung, Jin Song, Ho Jun Choi, Yong-Mun Wee, Jae-Hyung You, Nam-Ho Joh, Han-Ik Yang, Cheol-Min Goh, Munju 2024-01-20T01:30:54Z 2024-01-20T01:30:54Z 2021-09-05 2017-06 1387-1811 https://pubs.kist.re.kr/handle/201004/122672 A facile fabrication of a porous carbon cryogel from a blend (PAEO) of fluorinated poly(amic acid) and poly(ethylene oxide) (PEO) is demonstrated. The porous carbons are prepared by carbonizing the freeze-dried cyrogels of polymer blend with various contents. The original channel structures of the cryogels with PEO content below 5 wt% are perfectly maintained in the carbon cryogels. In particular, the carbon cyrogel derived from the blend (PEO content: 5 wt%) shows very high specific surface areas, 2646 m(2)/g. From investigation of the carbonization mechanism, it is found that the incorporation of PEO creates mesoporous structure without generating hydrophobic or ambiphilic components, while elimination of fluorine moiety affects the formation of microporous structure in resulting-carbon. In addition, the porous structure in carbon cryogels of high PEO loading is shrunk because PEO component reduces the rigidity of the structure. Lastly, the performance of the carbon cryogels as a capacitor is investigated. (C) 2017 Elsevier Inc. All rights reserved. English ELSEVIER SCIENCE BV ORDERED MESOPOROUS CARBON NITROGEN-DOPED CARBON MICROPOROUS CARBON TEMPLATE FILMS SUPERCAPACITOR POLYPYRROLE PERFORMANCE FABRICATION POLYIMIDES Preparation and formation mechanism of porous carbon cryogel Article 10.1016/j.micromeso.2017.02.075 1 MICROPOROUS AND MESOPOROUS MATERIALS, v.245, pp.138 - 146 MICROPOROUS AND MESOPOROUS MATERIALS 245 138 146 scie scopus 000401675400018 2-s2.0-85015405156 Chemistry, Applied Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Chemistry Science & Technology - Other Topics Materials Science Article ORDERED MESOPOROUS CARBON NITROGEN-DOPED CARBON MICROPOROUS CARBON TEMPLATE FILMS SUPERCAPACITOR POLYPYRROLE PERFORMANCE FABRICATION POLYIMIDES Porous carbon Freeze-dried cryogel Poly(ethylene oxide) Poly(amic acid) Polyimide