解读多孔离子液体的稳定性:流动力学,液体结构和悬浮能量学
Cintia M Correa1, Gauthier Legrand2, Chiara Corsini1
1Laboratoire de Chimie de l'ENS de Lyon, CNRS and Université de Lyon, France.
概括
多孔的离子液体表现出基于其基液的意想不到的质差异. 在一个离子液中ZIF-8悬浮体显示了宾汉行为,而另一个则保持了牛顿行为,粘度增加最小.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 类风病学 类风病学 类风病学
背景情况:
- 多孔离子液体 (PILs) 是具有可调节性质的先进材料.
- 了解它们的质性行为对于应用至关重要.
- ZIF-8是一种常见的金属有机框架,用于PILs.
研究的目的:
- 为了研究ZIF-8悬浮液在两个不同的离子液体中的类风学差异.
- 确定影响PILs稳定性和动态性能的因素.
- 将实验结果与分子动力学模拟进行比较.
主要方法:
- 在 bis ((trifluoromethylsulfonyl) imide 和基离子液中对 ZIF-8 悬浮物的风学测量.
- 分子动力学模拟用于分析液相结构和动力学.
- 热量计用于测量粒子分散过程中的热效应.
主要成果:
- 在 bis ((trifluoromethylsulfonyl) imide 基离子液中的 ZIF-8 悬浮体表现出 Bingham 行为与产量应激.
- 在化物基离子液中ZIF-8悬浮物保持牛顿式直至17.4%的固体体积分.
- 多孔离子液的粘度与纯离子液的粘度相当.
结论:
- PILs的风湿反应高度依赖于特定的离子液基.
- 结构化的液相和粒子间相互作用决定了PIL的稳定性和动态.
- PIL为需要特定流量特性而无需显著增加粘度的应用提供了潜力.
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