Nanostructured Layer Based on Intrinsically Conductive Polymers for Optimizing Carbon Electrodes’ Surface: Electrospray and Ultrasonic Spray Coating

Nanostructured Layer Based on Intrinsically Conductive Polymers for Optimizing Carbon Electrodes’ Surface: Electrospray and Ultrasonic Spray Coating

ABSTRACT

In this work, we focused on Electrospray (ES) and Ultrasonic Spray Coating (USC) as two promising and innovative fabrication techniques for the optimization of carbon electrodes’ surface to be employed in Bio-Electrochemical Systems. We performed, on commercial carbon paper electrodes, controlled depositions of a nanostructured layer containing PEO and PEDOT:PSS. We then employed electron microscopy and Raman spectroscopy to characterize the morphology and superficial uniformity of the so-obtained electrodes. Together with electrochemical characterizations and experiments in bio-electrochemical devices, we demonstrated how ES and USC represent promising techniques for the optimization.