2012 Fiscal Year Final Research Report
High Efficiency Electrodeposition of Manganese Using Ionic Liquids
| Project/Area Number |
24656458
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Metal making engineering
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| Research Institution | Kyoto University |
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Principal Investigator |
MURASE Kuniaki 京都大学, 大学院・工学研究科, 教授 (30283633)
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| Co-Investigator(Kenkyū-buntansha) |
KITADA Atsushi 京都大学, 大学院・工学研究科, 助教 (30636254)
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| Research Collaborator |
SUZUKI Ryohei 京都大学, 大学院・工学研究科, 修士課程学生
SUGIMURA Hiroyuki 京都大学, 大学院・工学研究科, 教授 (10293656)
ICHII Takashi 京都大学, 大学院・工学研究科, 助教 (30447908)
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| Project Period (FY) |
2012
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| Keywords | 電析 / マンガン / イオン液体 / 常温溶融塩 / 室温溶融塩 |
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| Research Abstract |
Electrodeposition of manganese was tried using ionic liquids as solventshaving relatively wide electrochemical windows compared to water. A conventional ionic liquid, 1-ethyl-3-methylimidazolium chloride, however, had the window ranging from 0 to 2 V vs. Mn, that was insufficient for Mn deposition. In contrast, 1-butyl-2,3-dimethylimidazoliumum chloride (1), in which the 2-position of imidazolium cation was substituted, or masked, by methyl group, made possible a reversible deposition/dissolution of Mn on a cyclic voltammerty. Potentiostatic electrolysis using ionic liquid 1 gave a gray amorphous deposit containing manganese. The deposition current efficiency was, however, lower than that reported for aqueous systems.
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