Self-organized cobalt fluoride nanochannel layers used as a pseudocapacitor material

Abstract

Aligned CoF₂ nanochannel layers have been formed by self-ordering electrochemical anodization. In voltammograms these layers provide multiple oxidation states, an almost ideal rectangular pseudocapacitive behavior, a high specific capacitance and good capacitance retention. These layers may thus be promising for supercapacitor applications.