在化层之间的2D纳米流体离子通道中具有高和稳定的离子导电性
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
概括
离子迅速穿过化化物 (BN) 膜,显示出显著增强的离子导电性. 这一发现为储能和淡化水的技术带来了有前途的进展.
科学领域:
- 材料科学
- 纳米技术
- 电化学
背景情况:
- 通过多孔膜进行高离子传输对于能量储存和水淡化至关重要.
- 在膜中实现有效的离子运输仍然是一个重大的科学挑战.
研究的目的:
- 研究化化物 (BN) 膜的离子运输特性.
- 评估BN膜在纳米流体和膜分离应用中的潜力.
主要方法:
- 在低度的各种盐溶液 (KCl,NaCl,CaCl2) 中测量通过BN纳米板的离子电流.
- 在不同温度 (高达90°C) 和极端pH条件下评估BN膜的性能.
主要成果:
- 与散装溶液相比,水合化物 (BN) 膜的离子导电性数级高.
- 在高达90°C的温度和极端酸性/性环境下,BN离子导管保持功能.
- 在pH值为0或14的溶液中浸泡一周后,BN膜没有降解.
结论:
- 化 (BN) 膜通过它们的间层空间促进了快速的离子传输.
- 由于BN的特殊化学和热稳定性,它适用于强大的离子导体.
- 基于BN的离子导体为先进的纳米流体设备和膜分离技术提供了一个有前途的平台.
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