2018 Fiscal Year Final Research Report
Magnetic evaluation of catalytic activity of graphene and its derivatives
| Project/Area Number |
16K05758
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Functional solid state chemistry
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| Research Institution | Hosei University |
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Principal Investigator |
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Keywords | グラフェン / 触媒 / イミン合成反応 / 局在スピン磁性 / 化学修飾 |
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| Outline of Final Research Achievements |
Correlation between spin magnetism and chemical structure is investigated for graphene and its derivatives. We found novel Functional group-dependent spin magnetism in graphene, where the localized spin states emerges depending on the topological modification of graphene lattice by attaching functional group. Based on the magnetic evaluation restults, large numbers of run for an oxidative coupling reaction of aromatic amine was perfomed with graphene catalyst with hydroxy groups. By statistical analyzing, of the reaction yield and structural and magnetic evaluations, we clarified that nitrogen atoms incorporated into graphene catalysts also plays an important role for the catalytic activities.
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| Free Research Field |
物性物理化学
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| Academic Significance and Societal Importance of the Research Achievements |
グラフェン触媒に対する磁性による電子状態の評価とRaman分光，赤外分光による構造の評価を併せ用いる本研究課題の実施により，反応に関わる電子状態と構造的要因および不純物に関わる寄与を切り分けて議論できるようになり，これまで未解明であったグラフェン自体の触媒活性のメカニズムが明らかになった．これにより，十分な触媒活性を持つ炭素材料を設計するための指針が確立されたため，軽量かつ資源枯渇や環境負荷の問題が少ない次世代の触媒であるグラフェン触媒が実用化され自動車やモバイルPC向け電源用の燃料電池などへ応用されることが期待される．
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