NEW POROUS ORGANO--HETEROSTRUCTURES BASED ON ORGANO-MODIFIED GRAPHENE-OXIDE

摘要: In this work, highly porous heterostructures with tailored properties were produced, through the silylation of organically modified graphene oxide (GO). Three different organo-silica precursors with various structural characteristics (rendering alkyl or phenyl groups) were employed to create high-yield silica networks as pillars between the organo-modified GO layers. Phenyl group bridged samples showed the maximum amount of silica content in the final heterostructure. Subsequent pyrolysis created porous structures, with surface areas of up to 550 m2/g, which are very attractive for potential CO2 adsorption applications. The porous heterostructure that showed the maximum surface area was chosen for investigating its CO2 adsorption properties.