초록 |
Porous carbons are omnipresent and essential materials in many scientific applications. They are widely used for catalyst support, gas separation electrode materials for batteries and supercapacitors. Their diverse applications are due to electrical conductivity, thermal conductivity, structural regularity, low density, chemical inertness, mechanical stability, and large surface area. Conventional porous carbon materials are fabricated by pyrolysis of organic precursors such as raw coal, coal tar pitch, wood, or polymers. Two kinds of templates including inorganic (silica) and organic (polymer) particles are used. Very recently, reinforced carbon foams by adding carbon nanotubes, silica, clay, and carbon fibers have been studied. In this work, to synthesized carbon foam, resorcinol-formaldehyde resin was used as carbon precursor and PMMA particle as a pore-generator. Graphene was added in the foams and physical and electrochemical properties of carbon foams were studied. |