FIB-SEM, XPS and gas adsorption methods have been used for the characterisation of physical properties of microporous carbide derived carbon electrodes prepared from Mo2C at 600 degrees C (noted as CDC-Mo2C). Cyclic voltammetry, constant current charge/discharge, and electrochemical impedance spectroscopy have been applied to establish the electrochemical characteristics for supercapacitors consisting of the 1 M Na2SO4, KOH, tetraethyl ammonium iodide or 6 M KOH aqueous electrolyte and CDC-Mo2C electrodes. The N-2 sorption values obtained have been correlated with electrochemical characteristics for supercapacitors in various aqueous electrolytes. The maximum gravimetric energy. E-max, and gravimetric power, P-max, for supercapacitors (taking into consideration the active material weight) have been obtained at cell voltage 0.9 V for 6 M KOH aqueous supercapacitor (E-max = 5.7 Wh kg(-1) and P-max = 43 kW kg-1). For 1 M TEAI based SC somewhat higher E-max (6.2 Wh kg(-1)) and comparatively low P-max (7.0 kW kg(-1)) have been calculated. (C) 2010 Elsevier B.V. All rights reserved.