書誌事項
- タイトル別名
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- Properties of electric field activated carbon derived from needle soke
- ニードルコークス ユライ デンカイ フカツタン ノ セイシツ
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Electric double layer capacitor(EDLC) is expected to be various emerge storage applications. High performance activated carbon for EDLC needs high surface area with optimized pore diameter. KOH activation is one of the effective methods for preparation of activated coke for EDLC, However, KOH activation is argued to carry many problems from views of cost and safety. More moderate activation is wanted against graphitizable carbon to be activated. The electrodes of particular carbons showed higher capacitance when it charged at higher voltage(2.5~3.7V), it was reported as electric field activation. In this study, activation of carbon higher charging voltage was examined to prepare higher performance electrode. Although the surface area of the coke K2CO3 activated at 900oC was as small as 20 m2/g, the activated coke achieved capacitances per weight and volume of 27 F/g and 29 F/ml, respectively, in the two-electrode system, by charging at 3.7 V. The graphitic and pore structures of the coke before and after the electric field activation were analyzed by XRD and 129Xe-NMR. The model of structural changes by electric field activated coke.
収録刊行物
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- 九州大学大学院総合理工学報告
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九州大学大学院総合理工学報告 29 (2), 278-282, 2007-12
九州大学大学院総合理工学府
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詳細情報 詳細情報について
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- CRID
- 1390290699813169920
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- NII論文ID
- 120001280773
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- NII書誌ID
- AA1147319X
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- ISSN
- 13467883
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- DOI
- 10.15017/14577
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- HANDLE
- 2324/14577
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- NDL書誌ID
- 10200836
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- IRDB
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用可