Origin of anomalously stabilizing ice layers on methane gas hydrates near rock surface

Yang Li; Robert W. Corkery; Sol Carretero-Palacios; Kristian Berland; Victoria Esteso; Johannes Fiedler; Kimball A. Milton; Iver Brevik; Mathias Boström

doi:10.1039/D2CP04883C

Origin of anomalously stabilizing ice layers on methane gas hydrates near rock surface

Yang Li,

*^ab Robert W. Corkery,^cd Sol Carretero-Palacios,

^e Kristian Berland,

^f Victoria Esteso,

^gn Johannes Fiedler,

^hi Kimball A. Milton,

*^j Iver Brevik*^k and Mathias Boström

*^lm

Author affiliations

* Corresponding authors

^a School of Physics and Materials Science, Nanchang University, Nanchang 330031, China
E-mail: leon@ncu.edu.cn

^b Institute of Space Science and Technology, Nanchang University, Nanchang 330031, China

^c Surface and Corrosion Science, Department of Chemistry, KTH Royal Institute of Technology, SE 100 44 Stockholm, Sweden

^d Applied Mathematics Department, Research School of Physics and Engineering, The Australian National University, Acton ACT 2610, Australia

^e Departamento de Física de Materiales and Instituto de Ciencia de Materiales Nicolás Cabrera, Universidad Autónoma de Madrid, 28049 Madrid, Spain

^f Faculty of Science and Technology, Norwegian University of Life Sciences, Ås, Norway

^g European Laboratory for Non-Linear Spectroscopy (LENS), Via Nello Carrara 1, Sesto F.no 50019, Italy

^h Department of Physics and Technology, University of Bergen, Allégaten 55, 5007 Bergen, Norway

ⁱ Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, Hermann-Herder-Str. 3, 79104 Freiburg, Germany

^j Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, Oklahoma 73019, USA
E-mail: kmilton@ou.edu

^k Department of Energy and Process Engineering, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
E-mail: iver.h.brevik@gmail.com

^l Centre for Materials Science and Nanotechnology, Department of Physics, University of Oslo, P. O. Box 1048 Blindern, NO-0316 Oslo, Norway
E-mail: mathias.bostrom@smn.uio.no

^m Centre of Excellence ENSEMBLE3 Sp. z o. o., Wolczynska Str. 133, Warsaw, Poland

ⁿ Departamento de Física de la Materia Condensada, ICMSE-CSIC, Universidad de Sevilla, Apdo. 1065, Sevilla, Spain

Abstract

Gas hydrates (GHs) in water close to freezing temperatures can be stabilised via the formation of ice layers. In a recent work [Boström et al., Astron. Astrophys., A54, 650, 2021], it was found that a surface region with partial gas dilution could be essential for obtaining nano- to micron-sized anomalously stabilizing ice layers. In this paper, it is demonstrated that the Casimir–Lifshitz free energy in multi-layer systems could induce thinner, but more stable, ice layers in cavities than those found for gas hydrates in a large reservoir of cold water. The thickness and stability of such ice layers in a pore filled with cold water could influence the leakage of gas molecules. Additional contributions, e.g. from salt-induced stresses, can also be of importance, and are briefly discussed.

This article is part of the themed collection: 2023 PCCP HOT Articles

Physical Chemistry Chemical Physics

Origin of anomalously stabilizing ice layers on methane gas hydrates near rock surface

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