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将PAN预氧化纤维在400℃~900℃炭化,经CO2活化得到一系列活性炭纤维,表征了其比表面、孔容和孔径分布等微结构参数,研究了炭化温度对CO2活化PAN基活性炭纤维微结构的影响。结果表明,炭化温度对活性炭纤维的比表面和孔结构有显著影响,适中的炭化温度(600℃)有利于得到高比表面积、大的孔容和孔径。
PAN preoxidized fibers were carbonized at 400 ℃ to 900 ℃, and a series of activated carbon fibers were obtained by CO2 activation. The microstructure parameters such as specific surface area, pore volume and pore size distribution were characterized. The effects of carbonization temperature on the activation of PAN-based activated carbon fiber Effect of structure. The results showed that the carbonization temperature had a significant effect on the specific surface area and pore structure of activated carbon fibers. The moderate carbonization temperature (600 ℃) was conducive to obtaining high specific surface area, large pore volume and pore size.