Jump to main content
Jump to site search


Interfacial premelting of ice in nano composite materials

Author affiliations

Abstract

The interfacial premelting in ice/clay nano composites was studied by high energy X-ray diffraction. Below the melting point of bulk water, the formation of liquid water was observed for the ice/vermiculite and ice/kaolin systems. The liquid fraction is gradually increasing with temperature. For both minerals, similar effective premelting layer thicknesses of 2–3 nm are reached 3 K below the bulk melting point. For the quantitative description of the molten water fraction in wet clay minerals we developed a continuum model for short range interactions and arbitrary pore size distributions. This model quantitatively describes the experimental data over the entire temperature range. Model parameters were obtained by fitting using a maximum entropy (MaxEnt) approach. Pronounced differences in the deviation from Antonow's rule relating interfacial free energy between ice, water, and clay are observed for the charged vermiculite and uncharged kaolin minerals. The resultant parameters are discussed in terms of their ice nucleation efficiency. Using well defined and characterized ice/clay nano composite samples, this work bridges the gap between studies on single crystalline ice/solid model interfaces and naturally occurring soils and permafrost.

Graphical abstract: Interfacial premelting of ice in nano composite materials

Back to tab navigation

Supplementary files

Publication details

The article was received on 04 Sep 2018, accepted on 05 Nov 2018 and first published on 07 Nov 2018


Article type: Paper
DOI: 10.1039/C8CP05604H
Citation: Phys. Chem. Chem. Phys., 2019, Advance Article
  • Open access: Creative Commons BY license
  •   Request permissions

    Interfacial premelting of ice in nano composite materials

    H. Li, M. Bier, J. Mars, H. Weiss, A. Dippel, O. Gutowski, V. Honkimäki and M. Mezger, Phys. Chem. Chem. Phys., 2019, Advance Article , DOI: 10.1039/C8CP05604H

    This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements