“…A number of methods have been reported capable of the synthesis of high surface area Mo 2 C and WC including gas-phase reactions, 2,3 gas-solid reactions, [4][5][6][7][8][9] or electrochemical 10 and solution state methods. [11][12][13][14] Particularly high surface areas (50-200 m 2 g -1 ) have been achieved by converting solution-derived precursors to the respective carbides, 14 reaction of MoO 3 or WO 2 vapors with activated carbon, 8,9 and sonochemical methods.…”