Capacitance Enhancement of Aqueous EDLC Systems by Electrochemical Treatment
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- SHIMOOKA Toshiharu
- Department of Applied Chemistry, Faculty of Engineering, Kansai University
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- YAMAZAKI Shigeaki
- Department of Applied Chemistry, Faculty of Engineering, Kansai University
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- SUGIMOTO Tatsuya
- Department of Applied Chemistry, Faculty of Engineering, Kansai University
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- JYOZUKA Tetsuya
- Department of Applied Chemistry, Faculty of Engineering, Kansai University
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- TERAISHI Hisao
- Department of Applied Chemistry, Faculty of Engineering, Kansai University
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- NAGAO Yasutaka
- Organization for Research and Development of Innovative Science and Technology, Kansai University
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- ODA Hirokazu
- Department of Chemical Engineering, Faculty of Engineering, Kansai University
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- MATSUDA Yoshiharu
- Organization for Research and Development of Innovative Science and Technology, Kansai University Kensei Inc.
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- ISHIKAWA Masashi
- Department of Applied Chemistry, Faculty of Engineering, Kansai University Research Center for Business Academia Collaboration, Kansai University
Bibliographic Information
- Other Title
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- 電気化学処理による水溶液電気二重層キャパシタの高容量化
- デンキ カガク ショリ ニ ヨル スイヨウエキ デンキ ニジュウソウ キャパシタ ノ コウヨウリョウカ
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Description
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.
Journal
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- Electrochemistry
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Electrochemistry 75 (3), 273-279, 2007
The Electrochemical Society of Japan
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Details 詳細情報について
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- CRID
- 1390001206496930048
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- NII Article ID
- 10018294893
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- NII Book ID
- AN00151637
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- COI
- 1:CAS:528:DC%2BD2sXislKrtrc%3D
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- ISSN
- 21862451
- 13443542
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- NDL BIB ID
- 8731688
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Allowed