| abstract |
The invention relates to a carbon-carbon (C/C) composite, wherein the inner surface of the carbon carrier material is coated with a nanoporous carbon material having a high specific surface area. The C/C composite has large pores and open pores and has a high specific surface area as a result of the coating. The production process is distinguished by the infiltration of the carbon carrier material or of an organic precursor with a dilute polymer solution. In this process, firstly a polymer layer is accumulated on the inner surface of the carrier material via a sol-gel process with a subsequent drying step, and the C/C composite is produced by pyrolysis. The composite can be used for electrodes in particular in redox flow batteries, as a catalyst support or for filtration. |