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The interplay between apparent viscosity and wettability in nanoconfined water

Author

Listed:
  • Deborah Ortiz-Young

    (School of Physics, Georgia Institute of Technology
    School of Chemistry, Georgia Institute of Technology)

  • Hsiang-Chih Chiu

    (School of Physics, Georgia Institute of Technology
    Present address: Department of Physics, National Taiwan Normal University, Taipei 116, Taiwan)

  • Suenne Kim

    (School of Physics, Georgia Institute of Technology
    Institute of Materials, Ecole Polytechnique Fédérale de Lausanne
    Present address: Department of Applied Physics, Hanyang University, Ansan 426-791, South Korea)

  • Kislon Voïtchovsky

    (Institute of Materials, Ecole Polytechnique Fédérale de Lausanne
    Present address: Department of Physics, University of Durham, Durham DH1 3HP, UK)

  • Elisa Riedo

    (School of Physics, Georgia Institute of Technology)

Abstract

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.

Suggested Citation

  • Deborah Ortiz-Young & Hsiang-Chih Chiu & Suenne Kim & Kislon Voïtchovsky & Elisa Riedo, 2013. "The interplay between apparent viscosity and wettability in nanoconfined water," Nature Communications, Nature, vol. 4(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms3482
    DOI: 10.1038/ncomms3482
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    Cited by:

    1. Chai, Rukuan & Liu, Yuetian & Xue, Liang & Rui, Zhenhua & Zhao, Ruicheng & Wang, Jingru, 2022. "Formation damage of sandstone geothermal reservoirs: During decreased salinity water injection," Applied Energy, Elsevier, vol. 322(C).
    2. Tian, Weibing & Wu, Keliu & Feng, Dong & Gao, Yanling & Li, Jing & Chen, Zhangxin, 2023. "Dynamic contact angle effect on water-oil imbibition in tight oil reservoirs," Energy, Elsevier, vol. 284(C).
    3. Jun-Xiang Xiang & Ze Liu, 2022. "Observation of enhanced nanoscale creep flow of crystalline metals enabled by controlling surface wettability," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    4. Yuanxi Yu & Chenxing Yang & Matteo Baggioli & Anthony E. Phillips & Alessio Zaccone & Lei Zhang & Ryoichi Kajimoto & Mitsutaka Nakamura & Dehong Yu & Liang Hong, 2022. "The ω3 scaling of the vibrational density of states in quasi-2D nanoconfined solids," Nature Communications, Nature, vol. 13(1), pages 1-10, December.

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