Accelerated graphitizaztin of exfoliated carbon fibers

摘要

Previously, we reported marked exfoliatin of carbon fibers by rapid heating of their intercalatin compounds up to 1000deg C, which had been obtaiend through electrolysis in either nitric acid {1,2 or formic acid 3. After exfoliation, a single fiber of mesophase-pitch-based and PAN-based carbon fibers was found to be converted into a bundle of thin filaments split along the original fiber axis.