| 摘要 |
Activated porous carbon fibers, whose active centers are formed by pores that are filled at least in part by carbon and/or metal and/or metal carbide, obtainable by carbonization of organic or inorganic polymers, the use thereof for the adsorption or separation of gaseous substances, in particular of CO2, and also a method for the production thereof. The method includes the following steps. The first step is production of a spinning mixture containing polyacrylonitrile-based polymer A and an organic or metallo-organic polymer B. The next step is spinning of the spinning mixture to form mixed fibers of polymer A and polymer B. The next step is stabilization of the mixed fiber by oxidation. The next step is carbonization or graphitization of the mixed fiber under non-oxidizing conditions in such a way that the polymer B forms a carbon and/or metal and/or metal carbide residue of at least 25 wt %, this residue forming active centers.
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