AI Article Synopsis
- Gas hydrates in near-freezing water can be stabilized by forming ice layers.
- A study suggests that areas with partial gas dilution are crucial for creating tiny, stable ice layers.
- The paper explores how free energy in multi-layer systems can lead to thinner but more stable ice layers in cavities, impacting gas leakage and influenced by salt-induced stresses.
Article Abstract
Gas hydrates (GHs) in water close to freezing temperatures can be stabilised the formation of ice layers. In a recent work [Boström , , , 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, from salt-induced stresses, can also be of importance, and are briefly discussed.
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| http://dx.doi.org/10.1039/d2cp04883c | DOI Listing |
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