Electrochemistry
Online ISSN : 2186-2451
Print ISSN : 1344-3542
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75 巻 , 3 号
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  • 下岡 俊晴, 山崎 穣輝, 杉本 達弥, 定塚 哲也, 寺石 尚央, 長尾 恭孝, 小田 廣和, 松田 好晴, 石川 正司
    75 巻 (2007) 3 号 p. 273-279
    公開日: 2012/03/20
    ジャーナル オープンアクセス
    The electrochemical treatment of activated carbon electrodes has been investigated as a novel method enhancing the capacitance of electric double layer capacitor (EDLC) electrodes. The treatment at 0.7 V floating in a week at 70°C can be applied to EDLC with aqueous electrolytes. In 30 wt% H2SO4/H2O electrolyte, the treatment causes a capacitance increase in a low voltage region: 0–0.4 V. On the other hand, in 3.5 M NaBr/H2O electrolyte, it results in a remarkable capacitance increase of 2.4 times in a high voltage region: 0.4–1.0 V. These results suggest that the treatment mechanisms in the above electrolyte systems should be different. We report herein the origins and mechanisms of these capacitance increases.
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電気化学:測定と解析のてびき
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