Solvo-osmotic flow in electrolytic mixtures
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We show that an electric field parallel to an electrically neutral surface can generate flow of electrolytic mixtures in small channels. We term this solvo-osmotic flow, since the flow is induced by the asymmetric preferential solvation of ions at the liquid–solid interface. The generated flow is comparable in magnitude to the ubiquitous electro-osmotic flow at charged surfaces, but for a fixed surface charge density, it differs qualitatively in its dependence on ionic strength. Solvo-osmotic flow can also be sensitively controlled with temperature. We derive a modified Helmholtz–Smoluchowski equation that accounts for these effects.
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2019 ◽
Vol 29
(12)
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pp. 4895-4924
2014 ◽
Vol 51
(5)
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pp. 661-670
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2011 ◽
Vol 2
(2)
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pp. 165
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2021 ◽
pp. 095440892110259
2012 ◽
Vol 50
(11)
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pp. 805-811
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