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在水友性纳米孔中的滑动流合体晶体的

Pranay Asai¹, Taylor Jordan¹, Viktoriya Semeykina²

¹Department of Chemical Engineering, The University of Utah, Salt Lake City, Utah 84112, United States.

Langmuir : the ACS journal of surfaces and colloids

|January 14, 2025

概括

水友性纳米孔中的滑流是依赖流体的. 像和甲醇这样的不湿的液体在小型纳米孔中表现出显著的滑动流,与水不同.

科学领域:

流体动力学流体动力学
纳米孔径材料是纳米孔径材料.
表面科学是一门科学.

背景情况:

滑流是连续流体动力学的增强,通常在疏水纳米孔中观察到.
了解水友纳米孔中的流体行为对于各种应用至关重要.

研究的目的:

为了研究通过水友纳米孔的不同流体的滑动流.
为了确定孔径大小和流体特性对滑动流的影响.

主要方法:

制造具有受控孔径 (18-215 nm) 的合体晶体.
测量液体流量 (水,六,甲醇) 和在晶体上的压力下降.
与海根-波西耶预测相比,流量增强的分析.

主要成果:

水在任何孔径大小中都没有出现滑动流.
六和甲醇在最小的毛孔 (18 nm) 中显示出显著的滑动流量 (增大至20倍).
随着孔隙大小的增加,流量增强降低了,对于黑色素来说,比甲醇更快.

结论:

滑流发生在小型水友性纳米孔中,用于非湿液体.
这种现象取决于毛孔大小和流体特性 (可湿性).
这些发现与液态染色学和自然纳米孔系统有关.

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