Physicochemical Properties of EMPyrCl-ZnCl2 Melts and Electrodeposition of Molybdenum from the Equimolar Melt at 150°C
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概要
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A new molten salt system, N-ethyl-N-methylpyrrolidinium chloride (EMPyrCl)-ZnCl2, was investigated for the electrodeposition of molybdenum at intermediate temperature. A phase diagram was constructed for the EMPyrCl-ZnCl2 system, which shows the lowest melting point of 45°C at an equimolar composition. A thermal gravimetry indicated that thermal decomposition starts from 230°C for the equimolar melt. The viscosity and conductivity of the equimolar melt were 75 cP and 22 mS cm−1, respectively, at 150°C. The cathode limit of the equimolar melt was confirmed to be the deposition of metallic zinc by XRD analysis. A smooth metallic molybdenum film was electrodeposited on a nickel substrate by potentiostatic electrolysis at 0.01 V vs. Zn(II)/Zn in an equimolar melt containing MoCl5 (0.9 mol%) and KF (3.0 mol%) at 150°C.
- 公益社団法人 電気化学会の論文
著者
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Hagiwara Rika
Graduate School Of Energy Science Kyoto University
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Nohira Toshiyuki
Graduate School Of Energy Science Kyoto University
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新田 耕司
住友電気工業株式会社 エレクトロニクス・材料研究所 金属無機材料技術研究部
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MAJIMA Masatoshi
Sumitomo Electric Industries, Ltd.
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KITAGAWA Kan
Graduate School of Energy Science, Kyoto University
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NITTA Koji
Graduate School of Energy Science, Kyoto University
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INAZAWA Shinji
Sumitomo Electric Industries, Ltd.
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