Decomposition of perfluorinated ionic liquid anions in subcritical and supercritical water
| Project/Area Number |
24310061
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Environmental technology/Environmental materials
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| Research Institution | Kanagawa University |
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Principal Investigator |
HORI Hisap 神奈川大学, 理学部, 教授 (50357951)
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| Co-Investigator(Kenkyū-buntansha) |
EINAGA Hisahiro 九州大学, 総合理工学研究科(研究院), 准教授 (90356593)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2014: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2013: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2012: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
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| Keywords | イオン液体 / 分解 / フッ素 / 亜臨界水 / 超臨界水 / 熱水 |
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| Outline of Final Research Achievements |
Decomposition of perfluorinated ionic liquid anions, bis(trifluoromethanesulfonyl)imides, in subcritical and supercritical water was investigated. Addition of zerovalent iron dramatically increased the yield of F-: when the reaction of [(CF3SO2)2N]- (Li salt) was carried out at 344 degrees for 6 h, the F- yield was 69.0%, which is 186 times the yield without iron. [(CF3SO2)2N]- also decomposed in the presence of FeO, which underwent disproportionation to form zerovalent iron, which acted as the reducing agent. Although the FeO-induced decomposition of [(CF3SO2)2N]- was initially slower than the zerovalent iron-induced decomposition, after prolonged reaction (18 h) at 378 degrees, the F- yield of the former reaction reached 85.7%, which was the highest yield obtained. Finally, decomposition of [Me3PrN][(CF3SO2)2N], a room temparature ionic liquid, was performed in the presence of FeO at 376 degrees, and the F- yield reached 89.9% after 18 h.
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Report
(4 results)
Research Products
(30 results)
