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Preparation of Carbon Nanosheets at Room Temperature
Published on: March 8, 2016
構造化されたベンゼン/ヘクサフローロベンゼン混合溶媒によるグラフェンシートの安定化
Andrew J Oyer1, Jan-Michael Y Carrillo, Chetan C Hire
1Institute of Materials Science, Polymer Program, University of Connecticut, Storrs, Connecticut 06269, United States.
Journal of the American Chemical Society
|March 15, 2012
まとめ
ベンゼンとヘクサフローロベンゼン混合物は,溶液中の原始グラフェンシートを安定させます. この方法により,溶媒を簡単に除去でき,独特のグラフェンベースの材料の作成が可能になります.
科学分野:
- マテリアルサイエンス 材料科学
- ナノテクノロジー ナノテクノロジー
- 物理化学 物理化学
背景:
- プリスティングラフェンは,アプリケーションの安定したサスペンション方法を必要とします.
- 簡単に取り外される溶媒は,グラフェンの加工に不可欠です.
- ベンゼンとヘクサフルオロベンゼンは,秩序ある構造を形成し,23.7 °Cで固まる.
研究 の 目的:
- 純粋なグラフェンシートの溶解/サスペンションを調査する.
- ベンゼンとヘキサフローロベンゼン (C(6) H(6) /C(6) F(6) の等分混合物を使用してください.
- 溶媒がグラフェン表面に自己組み立てをする過程を研究する.
主な方法:
- 分子力学シミュレーション. 分子力学シミュレーション.
- ウィルヘルミー・プレート測定を含む実験技術.
- 原子力顕微鏡 (AFM),スキャニング電子顕微鏡 (SEM),および伝送電子顕微鏡 (TEM).
主要な成果:
- グラフェン表面は,C ((6) H ((6) C ((6) F ((6)) の自己組み立てを,最大30 Åの厚さまでの周期的な層に模倣します.
- 溶媒の構造化は,四極の相互作用によって引き起こされ,交互にC(6) H(6) /C(6) F(6) の分子スタックを形成する.
- ~3.4 Å の周期を持つ密度振動が観察され,混合物とグラフェンの間の高い親和性を示しています.
- 懸浮グラフェンは,冷凍乾燥後にスポンジのような形状を示します.
結論:
- C6H6C6F6の混合物は,原始グラフェンシートを効果的に安定させます.
- テンプレートによる自己組み立ては,グラフェン上に秩序ある溶媒層を作り出します.
- この安定化法により,独特の形態を持つグラフェンベースの材料の生産が容易になります.
関連する概念動画
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For example, in...
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