Abstract:

Ordered mesoporous carbons were synthesized through evaporation induced self-assembly using phenol formaldehyde（PF）resin as carbon resource and triblock copolymer F127 as template. The molecular weight of PF resin synthesized at different temperatures was measured by gel permeation chromatography（GPC）and the resultant mesoporous carbon was characterized by X-ray diffraction（XRD），transmission electron microscopy（TEM）and N₂ adsorption/desorption. The temperature in PF resin synthesis showed obvious influence on the pore size and orderliness of mesoporous carbon. With the increase in temperature of PF resin synthesis ranging from 75 to 95 ℃，the orderliness of mesopores increased at first and then declined. With the PF resin synthesized at 85 ℃，the resultant mesoporous carbon showed a well-ordered hexagonal meso-structure with a mesopore volume of 0.115 cm³/g，a BJH specific surface area of 127 m²/g and an average pore size of 3.41 nm.