Tailoring Carbon Nanostructure for High Frequency Supercapacitor Operation
Figure 1
Building blocks of the electrochemical capacitors (ECs) of the current study. (a) Top view scanning electron microscopy (SEM) images of CNWs deposited onto Ni foil by MPECVD. (b) Typical Raman spectrum of CNWs on Ni substrate. (c) Size comparison of the CNW EC and electrolytic capacitors of similar capacitance. It should be noted here that the active volume of the device within the coin cell is only ~0.01 cm3 and a much smaller coin cell could be used while still maintaining performance.
