Preparation and capacitive properties of coal asphaltene/PAN based nitrogen doped ordered mesoporous carbon
Nitrogen doped ordered mesoporous carbon(NOMC)was prepared using SBA-15 as a hard template agent and solvent evaporation induced self-assembly of coal based asphaltene with polyacryloni-trile(PAN).Further enhance the specific surface area and capacitance performance of NOMC through CO2 activation.The results showed that when the ratio of SBA-15,asphaltene and PAN was 1∶1.2∶4.8,the carbonization rate and orderliness of the carbon material obtained at 800℃were higher.After activa-tion at 900℃,the specific surface area,pore volume,and pore size were 602.1 m2/g,0.426 cm3/g,3.808 nm,respectively,and the specific capacitance reached 127.2 F/g,which was 41.8%higher than that of unactivation.
SBA-15coal based asphaltenepolyacrylonitrilenitrogen dopingordered mesoporous carbon
万方数据
维普
