還元性共性グラフェン機能化の統一原理
Gonzalo Abellán1,2, Milan Schirowski1,2, Konstantin F Edelthalhammer1,2
1Department of Chemistry and Pharmacy, Friedrich-Alexander University of Erlangen-Nürnberg, Institute of Organic Chemistry , Henkestrasse 42, 91054 Erlangen, Germany.
Journal of the American Chemical Society
|March 22, 2017
まとめ
グラフェン誘導体は,還元経路を用いて合成された. アルキルイオジドは,可逆的共性添加と制御されたグラフェン改変の可能性を示し,最高の機能化結果をもたらした.
科学分野:
- 材料科学
- ナノテクノロジー
- 有機化学
背景:
- グラフェン誘導体は,グラファイトインターケレーション化合物 (GIC) を用いた還元経路で合成される.
- 機能化度および均質性の評価は,グラフェンのアプリケーションにとって極めて重要です.
研究 の 目的:
- グラフェンアリレーションとアルキレーションを,様々な電ophilesを用いて比較する.
- 加算の程度と大量機能化の均質性 (H_bulk) を評価することに焦点を当てます.
- 共同結合化学の可逆性とメカニズムを調査する.
主な方法:
- 使用したグラファイトインターケレーション化合物 (GIC),特にKC8.
- 同一性の評価のために統計的ラマン光譜法 (SRS) を採用した.
- FT-IR,ガスクロマトグラフィ,質量スペクトロメトリー (TGA/FT-IR/GC/MS) と組み合わせた熱重量測定を用いた.
主要な成果:
- アルキルヨーデットによるグラフェンの機能化は,加算度および大量均質性 (H_bulk) で優れた結果をもたらした.
- 200°C以下で反転可能な共性添加化学を証明した.
- 地域選択性および下部シート均一性 (H_シート) を示す同解性添加分裂および二分化が確認された.
結論:
- アルキルヨウ素を用いた還元性アルキル化は,グラフェンの機能化のための効果的な方法である.
- 共同結合の可逆性により,グラフェンの改変の新たな可能性が生まれます.
- 単層CVDグラフェンフィルムのコンセプトを開発し,将来のグラフェン機能化戦略の洞察を提供した.
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