Measurement of the slip length of water flow on graphite surface

Maali, Abdelhamid; Cohen–Bouhacina, Touria; Kellay, Hamid

doi:10.1063/1.2840717

Cited by 102 publications

(99 citation statements)

References 16 publications

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“…4a. First, these values are in good agreement with existing experimental or theoretical values found in literature 18,[20][21][22][23] (see Supplementary Table S3). Second, the good superposition of the fitting curves with the experimental data points confirms that equation (4) is able to capture the physics behind the different AFM energy dissipation measurements.…”

Section: Resultssupporting

confidence: 80%

See 1 more Smart Citation

The interplay between apparent viscosity and wettability in nanoconfined water

et al. 2013

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Understanding and manipulating fluids at the nanoscale is a matter of growing scientific and technological interest. Here we show that the viscous shear forces in nanoconfined water can be orders of magnitudes larger than in bulk water if the confining surfaces are hydrophilic, whereas they greatly decrease when the surfaces are increasingly hydrophobic. This decrease of viscous forces is quantitatively explained with a simple model that includes the slip velocity at the water surface interface. The same effect is observed in the energy dissipated by a tip vibrating in water perpendicularly to a surface. Comparison of the experimental data with the model shows that interfacial viscous forces and compressive dissipation in nanoconfined water can decrease up to two orders of magnitude due to slippage. These results offer a new understanding of interfacial fluids, which can be used to control flow at the nanoscale.

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Section: Resultssupporting

confidence: 80%

“…leaving b as a free-fitting parameter, to be compared with data measured or calculated in literature with different methods [18][19][20][21] . The fitting process is illustrated in Fig.…”

Section: Resultsmentioning

confidence: 99%

The interplay between apparent viscosity and wettability in nanoconfined water

et al. 2013

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“…Nearly all of the first reports, and a few of the recent ones, suggested that if slip occurred it was only on nonwetted surfaces (Churaev et al 1984;Blake 1990;Baudry et al 2001;Tretheway and Meinhart 2002;Cottin-Bizonne et al 2008;Maali et al 2008). However, the occurrence of slip was also shown for partially or totally wettable surfaces (Pit et al 2000;Craig et al 2001;Bonaccurso et al 2002;Sun et al 2002;Zhu and Granick 2004;Joseph and Tabeling 2005;Tallon 2007, 2008).…”

Section: Introductionmentioning

confidence: 99%

“…It is accepted that surface wettability (Pit et al 2000;Bonaccurso et al 2002;Choi et al 2003;Qian et al 2005;Cottin-Bizonne et al 2008;Maali et al 2008), surface roughness (Zhu and Granick 2002;Bonaccurso et al 2003;Truesdell et al 2006;Vinogradova and Yakubov 2006), and super hydrophobicity (Bhushan et al 2009) influence the interaction between liquid and solid at the interface. Thus, the boundary condition necessary for describing the flow of liquid on a solid must be adapted to such situations.…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamic drainage force in a highly confined geometry: role of surface roughness on different length scales

Guriyanova

Semin

Rodrigues

et al. 2009

Microfluid Nanofluid

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We measured the hydrodynamic drainage force of an aqueous, Newtonian liquid squeezed between two hydrophobic or two hydrophilic surfaces by means of the colloidal probe technique. We controlled the wettability, the roughness, the topology, and also the approaching velocity of the surfaces. We found that asperities on the surfaces caused an artificial decrease of the measured drainage force that must be considered by the interpretation of the force curves. Even considering the effect of asperities, our experimental results could be interpreted only with the aid of a partial slip model. Or else, interpreted assuming that the viscosity close to the surfaces is different from bulk. On patterned hydrophilic surfaces, we demonstrated that the drainage force depends not only on the overall surface roughness or micro structuring but also on the specific length scale of the surface nanostructures.

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“…This is because the molecular dynamic simulation is able to build any ideal water-wall system, which is easy to avoid a lot of uncontrollable factors (e.g., smoothness of wall, adsorbed gases on walls or any other unknown contaminants) (Wu et al 2017). As a result, the deviations of the simulated results from experiments are relatively large (Ortiz-Young et al 2013;Wu et al 2017;Xue et al 2014;Bouzigues et al 2008;Cottin-Bizonne et al 2008Maali et al 2008;Honig and Ducker 2007;Joly et al 2006;Cho et al 2004;Vinogradova et al 2001;Ahmad et al 2015).…”

Section: Appendix B: True Slip Length Versus Contact Anglementioning

confidence: 98%

Effect of critical thickness on nanoconfined water fluidity: review, communication, and inspiration

Sun

Yao

et al. 2018

J Petrol Explor Prod Technol

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It is crucial to precisely estimate the water transport behaviors in shale formation. However, the present study on this subject is quite limited. A comprehensive literature review is conducted and some improvements are proposed. In this paper, an improved model is proposed to investigate the flow of water in nanopores of shale formation. First, a quadratic equation is proposed to build the relationship between water viscosity and contact angle. Then, the effect of critical thickness on water transport behaviors is discussed. Results show that: (a) the flow enhancement is smaller than 1 when the contact angle is smaller than 100° due to energy barrier induced by strong hydrophilicity of the nanopore wall; (b) the flow enhancement becomes infinite when the contact angle is approaching 180°; and (c) the flow enhancement increases with decreasing of critical thickness, especially for hydrophilic nanopores (the contact angle is smaller than 120°) and nanopores with a relatively small diameter (smaller than 50 nm).

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Measurement of the slip length of water flow on graphite surface

Cited by 102 publications

References 16 publications

The interplay between apparent viscosity and wettability in nanoconfined water

The interplay between apparent viscosity and wettability in nanoconfined water

Hydrodynamic drainage force in a highly confined geometry: role of surface roughness on different length scales

Effect of critical thickness on nanoconfined water fluidity: review, communication, and inspiration

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