This article is cited in 9 papers

CONDENSED MATTER

Collective effect of transformation of a hydrogen bond network at the initial state of growth of methane hydrate

V. R. Belosludov^ab, K. V. Gets^ab, R. K. Zhdanov^ab, Yu. Yu. Bozhko^ba, R. V. Belosludov^c, L.-J. Chen<sup>d

a</sup> Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
^b Novosibirsk State University, Novosibirsk, 630090 Russia
^c Institute for Materials Research, Tohoku University, 980-8577 Sendai, Japan
^d Department of Chemical Engineering, National Taiwan University, 10617 Taipei, Taiwan

Abstract: The molecular dynamics study of the rearrangement of the dynamic hydrogen bond network of liquid water to the crystal hydrogen bond network of methane hydrate in the process of their formation and growth is conducted. To reveal the nature of nucleation, the time dependences of the degree of “crystallinity” of the nearest environment of all water molecules, the rate of ordering of the hydrogen bond network, and the relation of these parameters to the rate of growth of methane hydrate are studied. The effect of the presence of sea salt ions and hydrate seed on these parameters is analyzed. Systems with a completely mixed gas, i.e., with the minimum induction time, are fabricated, and it is shown that gas hydrates can be nucleated simultaneously in the entire volume of the solution, which in turn indicates the collective formation of hydrates from liquid solution.

Received: 07.12.2021
Revised: 11.12.2021
Accepted: 11.12.2021

DOI: 10.31857/S1234567822030028

 English version: Journal of Experimental and Theoretical Physics Letters, 2022, 115:3, 124–129