Preparation of mesoporous activated carbon fibers by catalytic gasification
SCIE
SCOPUS
- Title
- Preparation of mesoporous activated carbon fibers by catalytic gasification
- Authors
- Hong, EH; Jung, YH; Lee, KH
- Date Issued
- 2000-03
- Publisher
- KOREAN INST CHEM ENGINEERS
- Abstract
- A commercial activated carbon fiber with micropores, CH700-20 (Kuraray), was reformed to a mesoporous one by catalytic gasification. The catalytic gasification was composed of two steps: CO2 pretreatment and air oxidation. Cobalt was used as the catalyst and gasification was performed in the temperature range of 500-700 degrees C. BET surface area and pore volume of catalytically modified carbon fiber were analyzed by N-2 adsorption. BET surface area of the original CH700-20 was 1,711 m(2)/g, and the mesopore volume percentage was 11.9%. After catalytic gasification, BET surface area was similar to the original CH700-20, while mesopore volume percentage increased up to 56%. The average pore size of mesopores was 3-4 nm in diameter. The average size of mesopores could be controlled with nanometer resolution by varying the temperature and time of activation.
- Keywords
- activated carbon fiber (ACF); mesopore; catalytic gasification; CAPACITORS; GRAPHITE; COBALT; CLOTH; XPS
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/20064
- DOI
- 10.1007/BF02707149
- ISSN
- 0256-1115
- Article Type
- Article
- Citation
- KOREAN JOURNAL OF CHEMICAL ENGINEERING, vol. 17, no. 2, page. 237 - 240, 2000-03
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