Abstract:

Carbon nanotubes, graphene and graphene oxides have been under development due to their suitable properties to be applied in electrochemical energy devices such as supercapacitors, batteries and fuel cells. Recently, carbon nanostructures doped with heteroatoms have demonstrated to play an important role to improve the activity in electrocatalyst. This talk presents the synthesis and characterization of the carbon nanostructures doped (CND) with nitrogen, sulfur silicon and boron. The CND were synthesized by a modified chemical vapor deposition technique using ferrocene as catalytic agent and toluene as carbon source. Pyridine, thiophene, triphenylsilane and phenylboronic acid were used to dope the carbon during the synthesis, respectively. Results show that the morphologies and chemical properties were influenced by the type of heteroatom used. In order to compare these type of nanocarbons, the properties of Pt and Pt-metal on carbon nanotubes electrocatalyst also will be analyzed. The electrochemical properties towards their use in fuel cell and batteries will be discussed during the talk.