capable of simply measuring electrochemical properties of carbon metal carbon and other electrode materials a typical cyclic voltammetry system includes a tri electrode electrochemical system comprising a reference electrode a counter electrode and a working electrode wherein aqueous sulfuric acid solution is used as an electrolyte first 0 008 g of the carbon aerogels and 25 wt of nafion based on the weight of the carbon aerogels are dispersed in isopropanol to form carbon ink the carbon ink is coated onto the working electrode followed by drying and the working electrode is mounted to the electrochemical system to obtain a cyclic voltammogram next the capacitance of the carbon aerogels is calculated from the area measured in the cyclic voltammogram the analytical conditions used for such measurement are as follows a sweep range of voltage of 0 v to 0 8 v based on the reference electrode and a sweep rate of 20 mv s first 1 6378 g of phloroglucinol is dissolved in 58 6 ml of ethanol next furfural is added thereto in a molar ratio of 1 3 based on phloroglucinol then the reaction mixture is sealed and agitated at room temperature to carry out a reaction after.