ボロンニトリド層間の2Dナノ流体イオンチャネルにおける高と安定したイオン伝導性
Si Qin1, Dan Liu1, Guang Wang1
1Institute for Frontier Materials (IFM), Deakin University , 75 Pigdons Road, Waurn Ponds, Victoria 3216, Australia.
Journal of the American Chemical Society
|April 19, 2017
まとめ
イオンは水素化ボロンニトリド (BN) 膜を素早く通過し,イオン伝導性が著しく向上しています. この発見は エネルギー貯蔵と 淡水化技術の進歩に 期待を寄せています
科学分野:
- 材料科学
- ナノテクノロジー
- 電気化学
背景:
- エネルギー貯蔵と水の塩分除去には,多孔膜を通じた高イオン輸送が不可欠です.
- 膜で効率的なイオン輸送を達成することは依然として重要な科学的な課題です.
研究 の 目的:
- 酸化ボロンニトリド (BN) 膜のイオン輸送特性を調査する.
- ナノ流体および膜分離アプリケーションにおけるBN膜の可能性を評価する.
主な方法:
- 低濃度で様々な塩溶液 (KCl,NaCl,CaCl2) のBNナノシートを通過するイオン電流の測定
- 変化する温度 (最大90°C) と極端なpH条件 (pH~0と14) の下でBN膜の性能の評価
主要な成果:
- 水素化ボロンニトリド (BN) 膜は,散発溶液と比較して数度高いイオン伝導性を示す.
- BNイオン管は,90°Cまでの温度や極端な酸性/塩基性環境で機能を維持する.
- BN膜は1週間pH~0または14の溶液に浸した後に分解しない.
結論:
- ボロン・ニトリド (BN) 膜は,その層間空間を通過するイオンの急速な輸送を容易にする.
- 特殊な化学的および熱的安定性により,堅固なイオン導管に適しています.
- BNベースのイオン管は,高度なナノ流体装置と膜分離技術のための有望なプラットフォームです.
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