Graphene (G) presents a huge variety of intriguing properties, as extraordinary electronic transport characteristics. G, thanks to its low chemical reactivity, can also be used as an active support for catalytic nanoparticles. Some possible graphene application could be: its employment in active material in electronic devices such as sensors, batteries, supercapacitors, hydrogen storage systems or as fillers to produce multifunctional nanocomposite polymeric materials. In more detail we would like to examine: different approach of reduction and functionalization of in situ reduced graphene oxide obtaining an enhancement of thermal conductivity and an resistivity decrease. Surface modification and functionalization of rGO to improve its dispersion in organic solvent and also polymeric matrix. Copyright © VBRI Press.