Graphene nanoplatelets/carbon nanotube composites used as electrodes in supercapacitors

Recently, supercapacitors have gained significant interest due to the advancement of electronic devices that require high power densities and long lifespans. Among the most commonly used materials are carbon-based ones. In this work, graphene nanoplatelets (GNPs) and multi-walled carbon nanotubes (MWCNTs) were prepared using electrochemical exfoliation and chemical vapor deposition, respectively, with the intention of creating a hybrid material of GNPs/MWCNTs to be used as electrodes in symmetrical supercapacitors. These materials were characterized by Raman spectroscopy, Fourier-transform infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy, and cyclic voltammetry.

کلیدواژه ها:

carbon nanotubes ، graphene nanoplatelets ، supercapacitors