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Metastable Nanobubbles at the Solid–Liquid Interface Due to Contact Angle Hysteresis

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Department of Aeronautics and Astronautics, CREST, §International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), and Department of Mechanical Engineering, Kyushu University, Fukuoka 819-0395, Japan
*E-mail: [email protected] (T.N.).
Cite this: Langmuir 2015, 31, 3, 982–986
Publication Date (Web):December 25, 2014
https://doi.org/10.1021/la5036322
Copyright © 2014 American Chemical Society
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Abstract

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Nanobubbles exist at solid–liquid interfaces between pure water and hydrophobic surfaces with very high stability, lasting in certain cases up to several days. Not only semispherical but also other shapes, such as micropancakes, are known to exist at such interfaces. However, doubt has been raised as to whether or not the nanobubbles are gas-phase entities. In this study, surface nanobubbles at a pure water–highly ordered pyrolytic graphite (HOPG) interface were investigated by peak force quantitative nanomechanics (PF-QNM). Multiple isolated nanobubbles generated by the solvent-exchange method were present on the terraced areas, avoiding the steps of the HOPG surface. Adjacent nanobubbles coalesced and formed metastable nanobubbles. Coalescence was enhanced by the PF-QNM measurement. We determined that nanobubbles can exist for a long time because of nanoscale contact angle hysteresis at the water–HOPG interface. Moreover, the hydrophilic steps of HOPG were avoided during coalescence, providing evidence that the nanobubbles are truly gas phase.

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A peak force error image of the HOPG–water interface after solvent exchange and a movie of MWCNT penetration and pull-out. This material is available free of charge via the Internet at http://pubs.acs.org.

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Cited By


This article is cited by 13 publications.

  1. Qin-Yi Li, Ryo Matsushita, Yoko Tomo, Tatsuya Ikuta, Koji Takahashi. Water Confined in Hydrophobic Cup-Stacked Carbon Nanotubes beyond Surface-Tension Dominance. The Journal of Physical Chemistry Letters 2019, 10 (13) , 3744-3749. https://doi.org/10.1021/acs.jpclett.9b00718
  2. Patrick Kékicheff, Christophe Contal. Cationic-Surfactant-Coated Mica Surfaces below the Critical Micellar Concentration: 1. Patchy Structures As Revealed by Peak Force Tapping AFM Mode. Langmuir 2019, 35 (8) , 3087-3107. https://doi.org/10.1021/acs.langmuir.8b03781
  3. Xi Zhang, Xinjuan Liu, Yuan Zhong, Zhaofeng Zhou, Yongli Huang, and Chang Q. Sun . Nanobubble Skin Supersolidity. Langmuir 2016, 32 (43) , 11321-11327. https://doi.org/10.1021/acs.langmuir.6b01660
  4. A. Azevedo, H. Oliveira, J. Rubio. Bulk nanobubbles in the mineral and environmental areas: Updating research and applications. Advances in Colloid and Interface Science 2019, 271 , 101992. https://doi.org/10.1016/j.cis.2019.101992
  5. Hideaki Teshima, Yasuyuki Takata, Koji Takahashi. Adsorbed gas layers limit the mobility of micropancakes. Applied Physics Letters 2019, 115 (7) , 071603. https://doi.org/10.1063/1.5113810
  6. Hideaki Teshima, Koji Takahashi, Yasuyuki Takata, Takashi Nishiyama. Wettability of AFM tip influences the profile of interfacial nanobubbles. Journal of Applied Physics 2018, 123 (5) , 054303. https://doi.org/10.1063/1.5010131
  7. Irana Eka Putri, Grace Gita Redhyka. Theoretical Investigation on Particle Brownian Motion on Micro-air-bubble Characteristic in H 2 O Solvent. IOP Conference Series: Materials Science and Engineering 2017, 214 , 012003. https://doi.org/10.1088/1757-899X/214/1/012003
  8. Yoko Tomo, Koji Takahashi, Takashi Nishiyama, Tatsuya Ikuta, Yasuyuki Takata. Nanobubble nucleation studied using Fresnel fringes in liquid cell electron microscopy. International Journal of Heat and Mass Transfer 2017, 108 , 1460-1465. https://doi.org/10.1016/j.ijheatmasstransfer.2017.01.013
  9. Hideaki Teshima, Takashi Nishiyama, Koji Takahashi. Nanoscale pinning effect evaluated from deformed nanobubbles. The Journal of Chemical Physics 2017, 146 (1) , 014708. https://doi.org/10.1063/1.4973385
  10. Jung Shin Lee, Joon Sang Lee. Conjugate heat transfer analysis for the effect of the eccentricity of hydrophobic dot arrays on pool boiling. Applied Thermal Engineering 2017, 110 , 844-854. https://doi.org/10.1016/j.applthermaleng.2016.08.209
  11. Kislon Voïtchovsky, Daniele Giofrè, Juan José Segura, Francesco Stellacci, Michele Ceriotti. Thermally-nucleated self-assembly of water and alcohol into stable structures at hydrophobic interfaces. Nature Communications 2016, 7 (1) https://doi.org/10.1038/ncomms13064
  12. Takashi Nishiyama, Koji Takahashi, Tatsuya Ikuta, Yutaka Yamada, Yasuyuki Takata. Hydrophilic Domains Enhance Nanobubble Stability. ChemPhysChem 2016, 17 (10) , 1500-1504. https://doi.org/10.1002/cphc.201501181
  13. Kaushik K. Rangharajan, Kwang J. Kwak, A. T. Conlisk, Yan Wu, Shaurya Prakash. Effect of surface modification on interfacial nanobubble morphology and contact line tension. Soft Matter 2015, 11 (26) , 5214-5223. https://doi.org/10.1039/C5SM00583C

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