초록 |
Porous carbon materials have been easily prepared by carbonization of organic gel templates by polymer particles. Polymethacrylate (PMMA) particles were employed as templates in the gelation of resorcinol with formaldehyde. The gel in the water was solvent exchanged with methanol and the wet gel dried. After carbonization of the template-gel composite at 800 ℃, there should be pores left corresponding to the size of the template and yield carbon with fine porous structure, high surface area and enhanced porosity relatively.For this method using PMMA as template by changing template concentration and size, foamed carbon materials were characterized. |