Effect of Electrification Conditions on the Freezing of Supercooled Water Droplets on a Hydrophobic Coating

  • Nakajima Akira
    Department of Metallurgy & Ceramic Science, Tokyo Institute of Technology Kanagawa Academy of Science and Technology
  • Imase Akihito
    Department of Metallurgy & Ceramic Science, Tokyo Institute of Technology
  • Suzuki Shunsuke
    Department of Metallurgy & Ceramic Science, Tokyo Institute of Technology Kanagawa Academy of Science and Technology
  • Yoshida Naoya
    Kanagawa Academy of Science and Technology Research Center for Advanced Science and Technology, The University of Tokyo
  • Sakai Munetoshi
    Kanagawa Academy of Science and Technology
  • Hashimoto Ayako
    Kanagawa Academy of Science and Technology
  • Kameshima Yoshikazu
    Department of Metallurgy & Ceramic Science, Tokyo Institute of Technology Kanagawa Academy of Science and Technology
  • Toshiyoshi Hiroshi
    Kanagawa Academy of Science and Technology Institute of Industrial Science, The University of Tokyo
  • Okada Kiyoshi
    Department of Metallurgy & Ceramic Science, Tokyo Institute of Technology

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抄録

The effects of electrification processes on ice nucleation on an octadecanethiol (ODT) coating were investigated under two different conditions. Electrification provides the driving force of the movement to the three-phase contact line. This change promotes ice nucleation on the supercooled water droplet. In contrast, electrification before cooling inhibits freezing, probably because of the limitation of orientational freedom by the interaction between the surface charge and the dipole moment of water molecules.

収録刊行物

  • Chemistry Letters

    Chemistry Letters 36 (8), 1020-1021, 2007

    公益社団法人 日本化学会

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