ビーチによるグラファイトの減少. 水素によるエッジとインテリアの機能化
Zhiqiang Yang1, Yanqiu Sun, Lawrence B Alemany
1Department of Chemistry, Shared Equipment Authority, Rice University, Houston, Texas 77005, United States.
Journal of the American Chemical Society
|October 18, 2012
まとめ
グラファイトのビーチ還元は,高度に脱皮された,水素化されたグラフェンを生成します. このプロセスは,グラフェン網の端と内部の両方を水素原子で飽和させます.
科学分野:
- マテリアルサイエンス 材料科学
- ケミストリー 化学
背景:
- グラファイトは,ユニークな電子特性を有する層状の材料です.
- 石墨の化学的改変は,さまざまな用途のためにその性質を変更することができます.
研究 の 目的:
- グラファイトのビーチ還元を調査するために.
- 結果として得られる水素化されたグラフェン製品を特徴付けるために.
主な方法:
- 液体アンモニアにリチウムを使用したビーチの減少.
- 固体 (13) C NMRスペクトロスコーピー. 固体 (13) C NMRスペクトロスコーピー.
- エレメンタル分析. エレメンタル分析.
- 原子力顕微鏡 (AFM). 原子力の顕微鏡 (AFM). 原子力の顕微鏡 (AFM). 原子力の顕微鏡 (AFM). 原子力の顕微鏡 (AFM).
- 電子エネルギー損失スペクトロスコーピー (EELS).
主要な成果:
- ビーチ還元は,非常に減少した,脱皮されたグラフェン材料を生成しました.
- NMRとEELSでは,両辺と内側の格子位置の水素化が確認されました.
- 要素解析により, (C) の組成が (C) の組成と (H) の組成と (n) の組成とされた.
- AFMは,減少グラフェンの有意な剥離を示した.
- 4 eVの大きな帯域のギャップが観察され,広範な水素化を示した.
結論:
- ビーチ還元は,グラフィートを水素化する効果的な方法です.
- その結果生成される水素化されたグラフェンは,高度な剥離と水素化を示す.
- この材料は大きな帯域のギャップを有しており,電子アプリケーションの可能性を示唆しています.
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