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arXiv · 2304.14756

Slippery and mobile hydrophobic electrokinetics: from single walls to nanochannels

Olga I. Vinogradova·Elena F. Silkina·Evgeny S. Asmolov
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Abstract

We discuss how the wettability of solid walls impacts electrokinetic properties, from large systems to a nanoscale. We show in particular how could the hydrophobic slippage, coupled to confinement effects, be exploited to induce novel electrokinetic properties, such as a salt-dependent giant amplification of zeta potential and conductivity, and a much more efficient energy conversion. However, the impact of slippage is dramatically reduced if some surface charges migrate along the hydrophobic wall under an applied field.

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Olga I. Vinogradova, Elena F. Silkina, Evgeny S. Asmolov. 2023-04-28. Slippery and mobile hydrophobic electrokinetics: from single walls to nanochannels. https://doi.org/10.1016/j.cocis.2023.101742

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