TY - JOUR

T1 - Thermodynamic Description of Crystalline Water Phases Containing Hydrogen

AU - Zhdanov, R. K.

AU - Belosludov, V. R.

AU - Bozhko, Yu Yu

AU - Subbotin, O. S.

AU - Gets, K. V.

AU - Belosludov, R. V.

PY - 2018/12/1

Y1 - 2018/12/1

N2 - Stability regions of crystal phases in the water–hydrogen system have been studied within our statistical thermodynamic model for describing clathrate compounds. The thermodynamic stability of hydrogen-containing ices I h (C 0 Ih ), II (C 1 ), I c (C 2 ), classical clathrate hydrogen hydrate CS-II, and new hydrogen-filled ice phase C 0 has been analyzed. It has been shown that all considered phases are thermodynamically stable, but phase C 0 is metastable with respect to the other phases. The chemical potentials of water molecules in phases C 0 and C 1 are close to each other. As a result, metastable phase C 0 is experimentally observed in the stability region of phase C 1 .

AB - Stability regions of crystal phases in the water–hydrogen system have been studied within our statistical thermodynamic model for describing clathrate compounds. The thermodynamic stability of hydrogen-containing ices I h (C 0 Ih ), II (C 1 ), I c (C 2 ), classical clathrate hydrogen hydrate CS-II, and new hydrogen-filled ice phase C 0 has been analyzed. It has been shown that all considered phases are thermodynamically stable, but phase C 0 is metastable with respect to the other phases. The chemical potentials of water molecules in phases C 0 and C 1 are close to each other. As a result, metastable phase C 0 is experimentally observed in the stability region of phase C 1 .

UR - http://www.scopus.com/inward/record.url?scp=85062294000&partnerID=8YFLogxK

U2 - 10.1134/S0021364018240128

DO - 10.1134/S0021364018240128

M3 - Article

AN - SCOPUS:85062294000

VL - 108

SP - 806

EP - 809

JO - JETP Letters

JF - JETP Letters

SN - 0021-3640

IS - 12

ER -