Conversion of polyacrylonitrile fibers to activated carbon fibers: Effect of preoxidation extent
β Scribed by P. H. Wang
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 208 KB
- Volume
- 62
- Category
- Article
- ISSN
- 0021-8995
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## Abstract In this work, polyacrylonitrile (PAN) hollow fibers are pretreated with ammonium dibasic phosphate and then further oxidized in air, carbonized in nitrogen, and activated with carbon dioxide. The adsorption properties of the resultant activated carbon hollow fibers (ACHF) prepared in di
## Abstract Polyacrylonitrile (PAN) hollow fibers were pretreated with ammonium dibasic phosphate, then further oxidized in air, carbonized in nitrogen, and activated with carbon dioxide. The effects of activation time of a precursor fiber on the microstructure, specific surface area, poreβsize dis
In this work, polyacrylonitrile (PAN) -based activated carbon fibers (ACFs) were developed by the common processes of stabilization, carbonization, and steam activation. Those fibers were successively subjected to heat treatment in a vacuum at high temperature and reactivation in steam. The changes