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Time- and Pressure-Dependent Gas Diffusion in a Nanoconfined Liquid Phase
The Journal of Physical Chemistry C ( IF 3.7 ) Pub Date : 2021-03-05 , DOI: 10.1021/acs.jpcc.0c11318
Lijiang Xu 1 , Mingzhe Li 1 , Weiyi Lu 1
Affiliation  

Fundamentally understanding the gas–liquid interaction in a nanoenvironment is important in nanofluidics-based systems. Here, a systematically experimental study of the gas diffusion in a liquid phase confined in hydrophobic nanopores is presented. By holding a liquid nanofoam (LN) system at different pressure levels for various time durations, the gas diffusion behavior is quantified by analyzing the degree of liquid outflow from the hydrophobic nanopores. The results show that the gas diffusion progress exhibits an exponentially decaying rate. In addition, distinct from the bulk case, pressure poses a pronounced effect on the gas diffusion in the nanoconfined liquid. These findings extend the knowledge of gas–liquid interactions in nanofluidics-based systems.

中文翻译:

纳米受限液相中随时间和压力变化的气体扩散

从根本上理解纳米环境中的气液相互作用在基于纳米流体的系统中很重要。在这里,提出了一种系统的实验研究,该实验研究了气相在受限于疏水纳米孔中的液相中的扩散。通过将液态纳米泡沫(LN)系统在不同压力水平下保持不同的持续时间,可以通过分析液体从疏水性纳米孔流出的程度来量化气体扩散行为。结果表明,气体扩散过程呈现出指数衰减率。另外,与本体情况不同,压力对纳米受限液体中的气体扩散产生显着影响。这些发现扩展了基于纳米流体的系统中气液相互作用的知识。
更新日期:2021-03-18
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