In-situ atomic force microscopy (AFM) was applied to the investigation of surface film formation processes on a nongraphitizable carbon electrode. A glassy carbon (GC) plate with heat-treatment at 500°C was used as a model electrode of the nongraphitizable carbon. The in-situ AFM was combined with a cyclic voltammetry measurement. Based on the results, the effect of different electrolyte solutions was investigated and the thickness of the surface film on GC was found to be thinner than that on highly oriented pyrolytic graphite.
2016 The Electrochemical Society of Japan