TY - JOUR
T1 - Origin of anomalously stabilizing ice layers on methane gas hydrates near rock surface
AU - Li, Yang
AU - Corkery, Robert W.
AU - Carretero-Palacios, Sol
AU - Berland, Kristian
AU - Esteso, Victoria
AU - Fiedler, Johannes
AU - Milton, Kimball A.
AU - Brevik, Iver
AU - Boström, Mathias
N1 - Publisher Copyright:
© 2023 The Royal Society of Chemistry
PY - 2023/1/16
Y1 - 2023/1/16
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85149002122&partnerID=8YFLogxK
U2 - 10.1039/d2cp04883c
DO - 10.1039/d2cp04883c
M3 - Article
SN - 1463-9076
VL - 25
SP - 6636
EP - 6652
JO - Physical Chemistry Chemical Physics
JF - Physical Chemistry Chemical Physics
IS - 9
ER -