| Project/Area Number |
24656548
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Recycling engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
HONMA Itaru 東北大学, 多元物質科学研究所, 教授 (90181560)
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| Co-Investigator(Kenkyū-buntansha) |
TOMAI Takaaki 東北大学, 多元物質科学研究所, 助教 (80583351)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Keywords | ナノグラフェン / 超臨界流体 / ジグザグエッジ / グラフェン / リサイクル / レアメタル / 磁性流体 |
|---|
| Research Abstract |
Zigzag-edge nanographene can be a promising magnetic material, which contributes to the magnetic separation and collection of minor metals. In this study, we developed a novel scalable production method of zigzag-edge-introduced nanographene by combination between anisotropic etching and supercritical fluid exfoliation.
We conducted anisotropic etching of graphite substrate/powder with catalytic nanoparticles in supercritical water. Anisotropic etching made a lot of trenches consisted of zigzag edges on graphite surface. Because of the exfoliation effect of supercritical fluid, graphene was isolated from the graphite simultaneously with the anisotropic etching. Finally, the multilayer graphene with zigzag edge was exfoliated from the anisotropically etched graphite surface.
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