No.13 自己賦活による鶏糞からの活性炭作製と電気二重層キャパシタへの応用(研究発表)

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Here, we demonstrate the fabrication of activated carbon (AC) from chicken manure and its application for electric double layer capacitor (EDLC) electrodes. Egg-laying chicken derived manure was used as the starting material. Char was fabricated through thermal decomposition of the as-received manure in platinum crucible between 600 and 1000 ℃ for 7 min. Ash was removed from the char through washing with 6 M HCl and following repeated rinsing with distilled water. Finally, AC was obtained after the drying of the ash removed char at 107 ℃ for 24 h. Specific surface area (SSA) of ACs was measured by N_2 gas adsorption with BET method. EDLC electrode pellets were fabricated through uniaxial pressing of AC, acetylene black and PTFE mixture with an appropriate composition. SSA increased with increasing the heating temperature and reached to be 1618 m^2・g^<-1> at 1000℃. Relatively high specific capacitance of 25 F・g^<-1> was obtained for the EDLC.
2011-10-27