Suppressing Ice Nucleation of Supercooled Condensate with Biphilic Topography

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Youmin Hou
  • Miao Yu
  • Yuhe Shang
  • Peng Zhou
  • Ruyuan Song
  • Xiaonan Xu
  • Xuemei Chen
  • Shuhuai Yao

Detail(s)

Original languageEnglish
Journal / PublicationPhysical Review Letters
Volume120
Issue number7
Publication statusPublished - 16 Feb 2018

Abstract

Preventing or minimizing ice formation in supercooled water is of prominent importance in many infrastructures, transportation, and cooling systems. The overall phase change heat transfer on icephobic surfaces, in general, is intentionally sacrificed to suppress the nucleation of water and ice. However, in a condensation frosting process, inhibiting freezing without compromising the water condensation has been an unsolved challenge. Here we show that this conflict between anti-icing and efficient condensation cooling can be resolved by utilizing biphilic topography with patterned high-contrast wettability. By creating a varying interfacial thermal barrier underneath the supercooled condensate, the biphilic structures tune the nucleation rates of water and ice in the sequential condensation-to-freezing process. Our experimental and theoretical investigation of condensate freezing dynamics further unravels the correlation between the onset of droplet freezing and its characteristic radius, offering a new insight for controlling the multiphase transitions among vapor, water, and ice in supercooled conditions.

Citation Format(s)

Suppressing Ice Nucleation of Supercooled Condensate with Biphilic Topography. / Hou, Youmin; Yu, Miao; Shang, Yuhe; Zhou, Peng; Song, Ruyuan; Xu, Xiaonan; Chen, Xuemei; Wang, Zuankai; Yao, Shuhuai.

In: Physical Review Letters, Vol. 120, No. 7, 16.02.2018.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review