Do anyone knows what kind of materials could be used to paint a supercapacitor electrode as shown in the picture (the coated black shining materials)? Any help is appreciated. Thanks!
This black ink is probably consists of carbon based materials. It can be an ink made of graphene oxide mixed with other additives like some nanoparticles or only GO itself. It also can be an ink which consists of activated carbon and carbon black. According to its color and the shape of ink's coating on the metallic substrate it is most probably a carbon based ink.