| Project/Area Number |
10450321
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| Research Category |
Grant-in-Aid for Scientific Research (B).
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
工業物理化学
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| Research Institution | Faculty of Textile Science and Technology, Shinshu University |
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Principal Investigator |
TAKASU Yoshio Faculty of Textile Science and Technology, Professor, 繊維学部, 教授 (50035078)
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| Co-Investigator(Kenkyū-buntansha) |
SUGIMOTO Wataru Faculty of Textile Science and Technology, Research Associate, 繊維学部, 助手 (20313843)
MURAKAMI Yasushi Faculty of Textile Science and Technology, Associate Professor, 繊維学部, 助教授 (90219907)
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| Project Period (FY) |
1998 – 2000
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| Project Status |
Completed (Fiscal Year 2000)
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| Budget Amount *help |
¥13,200,000 (Direct Cost: ¥13,200,000)
Fiscal Year 2000: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1999: ¥5,200,000 (Direct Cost: ¥5,200,000)
Fiscal Year 1998: ¥6,600,000 (Direct Cost: ¥6,600,000)
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| Keywords | Capacitor / Ruthenium Oxide / Molybdenum Oxide / Vanadium Oxide / Electrochemical Double Layer / Acative Carbon / Capacitance / Calcium / 電気化学キャパシタ / カーボンブラック / スーパーキャパシタ / 炭素 / 擬似二重層容量 / 酸化物電極 |
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| Research Abstract |
1. Development of Binary Oxide Electrodes with Ru and Less-expensive Metals
The Ru-V-O/Ti, Ru-Ca-O/Ti, Ru-Mo-O/Ti electrodes prepared by dip-coating method gave large pseudocapacitance. The maximum value was 350 F g^<-1> which was attained with Ru_<40>-V_<60>-O/Ti system calcined at 450℃.
2. Development of the Preparation Methods of Large Surface Area-Oxides
Various methods for the enlargement of the surface area of oxides have been developed : (1) Addition of a salt catalyst, ammonium hydrogen carbonate, to the dip-coating solution, (2) Binary and ternary oxide coating by dip-coating method, (3) Addition of a rare earth element to the dip-coating solution followed by dissolution of the rare earth element by acid after calcination, (4) A sol-gel method with a solt catalyst, (5) Transformation of a oxide into laryer structure by melting with KOH followed by ion-exchenge with proton.
3. Development of Less-expensive Ti-V-W-O/Ti Electrodes
Dip-coated Ti-V-W-O/Ti electrodes from less-expensive elements have been found to give considerably high pseudocapacitane, -100 F g^<-1>.
4. Development of Hybrid Electrodes with Metal Oxides and Active Carbon
Loading of small amount of MoO_3 on an active carbon electrode has been found to enhance its pseudocapacitance by ca.40 % (ca.180 F g^<-1>).
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