arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2110.04556cond-mat.soft
收藏

狭缝状纳米孔中类水模型的相行为。密度泛函理论的预测

Phase behavior of water-like models in nanoscopic pores of slit shape. Predictions from a density functional theory

O. Pizio, S. Sokolowski, V. M. Trejos

摘要:

我们探索了一组类水模型在纳米尺度狭缝孔中的相行为。水和孔壁之间的相互作用模拟石墨表面。一个版本的密度泛函方法被用作理论工具。流体模型采用Clark等人的工作[Mol.物理、2006,104,3561]。它们充分地再现了大体积水蒸气-液体共存包络。我们的主要重点是在封闭水的相图的拓扑结构的变化,并建立在水-石墨相互作用势的强度的冷凝和蒸发之间的交叉温度的行为的趋势。的水膜上的孔壁的生长示出的密度分布。理论结果进行了讨论的背景下,在孔隙中的水模型的计算机模拟结果。

英文摘要:

We have explored the phase behavior of a set of water-like models in slit pores of nanoscopic dimensions. The interaction between water and pore walls mimics the graphite surface. A version of density functional method is used as theoretical tools. The fluid models are adopted from the work of Clark et al. [Mol. Phys., 2006, 104, 3561]. They reproduce the bulk water vapor-liquid coexistence envelope adequately. Our principal focus is on changes of topology of the phase diagram of confined water and establishing trends of behavior of the crossover temperature between condensation and evaporation on the strength of water-graphite interaction potential. Growth of the water film on the pore walls is illustrated in terms of the density profiles. Theoretical results are discussed in context of computer simulation findings for water models in pores.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑