機械的に形状の二次元共性有機フレームワークは,結晶学的配列と高速リオン電導性を明らかにします
Demetrius A Vazquez-Molina1, Gavin S Mohammad-Pour1, Chain Lee2
1Department of Chemistry, University of Central Florida , 4111 Libra Drive, Orlando, Florida 32816, United States.
Journal of the American Chemical Society
|July 15, 2016
まとめ
協和有機フレームワーク (COF) は,機械的に形状のある物体に加工することができます. これらの加工されたCOFは,高度なバッテリーアプリケーションの固体電解質として潜在性を示しています.
科学分野:
- 材料科学
- 化学について
- クリスタルグラフィー
背景:
- 同性有機フレームワーク (COF) は通常,不溶性粉末であり,デバイスでの使用を制限しています.
- 材料科学では,COFをデバイスの統合に利用可能な形に処理することが重要な課題でした.
研究 の 目的:
- 協和有機フレームワーク (COF) の機械的処理性を調査する.
- 電気化学装置における固体電解質としての加工されたCOFの可能性を調査する.
主な方法:
- 機能と対称性が異なる5種類のCOFを機械的に圧縮する.
- 圧縮されたCOFオブジェクトの結晶学的な指向 (hk0および00l平面) の分析.
- 導電性測定のために,COFのペレットをLiClO4で浸潤する.
主要な成果:
- COFは,アニゾトロプ的順序を示す形状のオブジェクトにうまく圧縮することができます.
- 処理方法は5つの異なるCOFで一般性を示し,顕著な安定性を示した.
- 浸漬されたCOFペレットは,高い電気化学的安定性で0.26 mS cm ((-1) までの室温伝導性を達成しました.
結論:
- 機械的圧縮は,不溶性COFを秩序ある構造に加工するための有効な方法です.
- 処理されたCOFは,優れた電気化学的安定性とイオン伝導性を示しています.
- この研究は,COFを次の世代のバッテリーで固体電解質として利用するための新しい道を開きます.
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