Plasma enhanced decomposition of propylene on activated carbon fibers

摘要

Activated carbons with uniform size micropores appear to have the highest potential for improvement of their molecular sieving properties by employing chemical vapor deposition techniques. In this work RF plasma was used to enhance propylene cracking and to examine its effect on the pore structure, chemical surface groups and selective CO_2 adsorption of a commercial activated carbon fiber. Plasma treatment of carbon fibers was carried out under various experimental conditions. Raman, FTIR and XPS spectroscopy were used to evaluate the modifications on the fibers surface. SEM was also used for the observation of fibers surface before and after plasma treatment.