Cyclic voltammetry, constant current charge/discharge, and electrochemical impedance spectroscopy have been applied to establish the electrochemical characteristics for electric double-layer capacitor (EDLC) consisting of the 1 M (C2H5)(3)CH3NBF4 electrolyte in acetonitrile and micro/mesoporous carbon electrodes prepared from Mo2C, noted as C(Mo2C). The N-2 sorption (total BET specific surface area (S-BET <= 1855 m(2) g(-1)), micropore area (S-micro <= 1823 m(2) g(-1)), total pore volume (V-tot <= 1.399 m(3) g(-1)) and pore size distribution (average NLDFT pore width d(NLDFT) >= 0.89 nm) values obtained have been correlated with the electrochemical characteristics for EDLCs (region of ideal polarizability (Delta V = 3.0V), characteristic time constant (tau(R) =1.05 s), gravimetric capacitance (C-m <= 143 F g(-1))) dependent strongly on the C(Mo2C) synthesis temperature. High gravimetric energy (35 wh kg(-1)) and gravimetric power (237 kW kg-1) values, normalised to the total active mass of both C(Mo2C) electrodes, synthesised at T-synt = 800 degrees C, have been demonstrated at cell voltage 3.0V and T = 20 degrees C. (C) 2010 Elsevier Ltd. All rights reserved.