This micrograph shows a carbon-carbon nanotubes (CNT)-nanocomposite coating with hierarchical porosity.
At the IMST this film of approximately 2µm thickness is (using a cost-effective method) processed directly on the metal collector. The electrochemical performance (for example specific capacitance or electrocatalytic behaviour) of the coating is characterized using cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and galvanostatic charge-discharge (cycling) measurements. The electrochemical properties (specific capacitance, cycling performance, energy and power density) we have obtained are reproducible and lie at the upper end of what has been published so far. The performance may be boosted via surface modification, e.g. with metal nanoparticles (see our publications on the subject).