空気極にPd修飾メソポーラスCoOを用いるLi-空気2次電池
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概要
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Mesoporous cobalt oxide (Co3O4) was studied for air electrode of Li-air rechargeable battery. In this study, mesoporous Co3O4 with an average pore radius of 3.09 nm and BET surface area of 99 m2/g was successfully prepared by using mesoporous SiO2 for template. Prepared mesoporous Co3O4 was applied for air electrode of Li-air battery after mixing with Pd and it was found that the cell showed a reasonably large discharge capacity of 481 mAh/g-cat. at 0.1 mA/cm2 at the initial cycle. Energy efficiency for charge and discharge was estimated to be ca. 75%. Raman spectroscopy suggests that the main product during discharge was Li2O2 and formation of Li2CO3 was hardly observed.
著者
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Ishihara Tatsumi
Department Of Applied Chemistry Faculty Of Engineering Kyushu University
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Ida Shintaro
Department Of Applied Chemistry And Biochemistry Faculty Of Engineering Kumamoto University
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Thapa Arjun
Department Of Applied Chemistry Kyushu University
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HIDAKA Yuiko
Department of Applied Chemistry, Kyushu University
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IDA Shintaro
Department of Applied Chemistry, Kyushu University
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