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Updated: Jun 26, 2026

Determining the Ice-binding Planes of Antifreeze Proteins by Fluorescence-based Ice Plane Affinity
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Published on: January 15, 2014

Proton mobility in thin ice films: a revisit.

Eui-Seong Moon1, Chang-Woo Lee, Heon Kang

  • 1Department of Chemistry, Seoul National University, Gwanak-gu, Seoul, Republic of Korea.

Physical Chemistry Chemical Physics : PCCP
|August 9, 2008
PubMed
Summary

Protons show limited mobility in ice films at low temperatures. Above 130 K, proton mobility significantly increases, explaining anomalous experimental observations in ice film research.

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Area of Science:

  • Physical Chemistry
  • Materials Science
  • Surface Science

Background:

  • Proton transport in ice films is crucial for understanding various chemical and physical processes.
  • Anomalous experimental observations regarding proton mobility in ice films require explanation.

Purpose of the Study:

  • To investigate proton transport dynamics within ice films.
  • To determine the temperature-dependent mobility of protons in ice.
  • To provide a mechanistic explanation for observed proton mobility anomalies.

Main Methods:

  • Experimental setup involving ice film preparation.
  • Introduction of hydronium ions into the interior of the ice film.
  • Monitoring of hydronium ion accumulation at the film surface using temperature-controlled measurements.

Main Results:

  • Protons exhibit restricted mobility in ice films below 130 K.
  • A significant increase in proton mobility is observed at temperatures exceeding 130 K.
  • The temperature-dependent mobility correlates with anomalous literature findings.

Conclusions:

  • Proton mobility in ice films is strongly temperature-dependent.
  • The study provides a plausible explanation for previously unexplained experimental results on proton mobility in ice.
  • Understanding proton transport is key for astrophysical and atmospheric chemistry.