Classical Density Functional Theory and Nanofluidics: Adsorption and the Interface Binding Potential

Authored by: P. Yatsyshin , M.-A. Durán-Olivencia , S. Kalliadasis

21st Century Nanoscience – A Handbook

Print publication date:  April  2020
Online publication date:  April  2020

Print ISBN: 9780815356264
eBook ISBN: 9780429347313
Adobe ISBN:

10.1201/9780429347313-14

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Abstract

Interest in wetting has been rapidly growing over the past few decades across different applied and theoretical fields of study. On the applied front, it plays a crucial role in many technological processes, from the vapor-liquid-solid growth of nanowires, to labs-on-chip and to applications in superhydrophobicity and nanofluidics [1–6]. It is also rich in fundamental questions. The physical mechanisms responsible for the height of liquid–gas interface during adsorption are directly linked to the small-scale workings of the atomic world. In particular, changes between the so-called Wenzel and Cassie–Baxter states of drops sitting on rough surfaces, as well as the effects of contact angle hysteresis during droplet spreading still remain in debate [7,8]. At the same time, the competition between the fluid–fluid and fluid–substrate interactions and interface fluctuations often leads to the appearance of exciting interfacial phase transitions and associated critical phenomena [9–19].

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