The CV shape has no peaks , its similar to the one observed for a supercapacitor
The area under CV is decreasing as the nanoparticle content in superconductor increases...i didnt calculate the specific capacitance..its only the area under CV that is decreasing
Can you please tell me what is you material? does it contain any carbonaceous material???
Since your not getting any redox peak, it might be due to the carbon, if you used any carbonaceous material. Or if you use any transition metal oxides, it might be due to not activation of your material...