Thermodynamic Description of Crystalline Water Phases Containing Hydrogen

R. K. Zhdanov; V. R. Belosludov; Yu Yu Bozhko; O. S. Subbotin; K. V. Gets; R. V. Belosludov

doi:10.1134/S0021364018240128

Thermodynamic Description of Crystalline Water Phases Containing Hydrogen

R. K. Zhdanov, V. R. Belosludov, Yu Yu Bozhko, O. S. Subbotin, K. V. Gets, R. V. Belosludov

IMR - Collaborative Research Center on Energy Materials

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

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 .

Original language	English
Pages (from-to)	806-809
Number of pages	4
Journal	JETP Letters
Volume	108
Issue number	12
DOIs	https://doi.org/10.1134/S0021364018240128
Publication status	Published - 2018 Dec 1

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title = "Thermodynamic Description of Crystalline Water Phases Containing Hydrogen",

abstract = " 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 .",

author = "Zhdanov, {R. K.} and Belosludov, {V. R.} and Bozhko, {Yu Yu} and Subbotin, {O. S.} and Gets, {K. V.} and Belosludov, {R. V.}",

note = "Funding Information: We are grateful to V.S. Efimchenko for preliminary data on a new phase placed at our disposal. This work was supported by the Siberian Branch, Russian Academy of Sciences (project no. V.44.4.9). Publisher Copyright: {\textcopyright} 2018, Pleiades Publishing, Inc.",

year = "2018",

month = dec,

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doi = "10.1134/S0021364018240128",

language = "English",

volume = "108",

pages = "806--809",

journal = "JETP Letters",

issn = "0021-3640",

publisher = "Pleiades Publishing",

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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.

N1 - Funding Information: We are grateful to V.S. Efimchenko for preliminary data on a new phase placed at our disposal. This work was supported by the Siberian Branch, Russian Academy of Sciences (project no. V.44.4.9). Publisher Copyright: © 2018, Pleiades Publishing, Inc.

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 .

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U2 - 10.1134/S0021364018240128

DO - 10.1134/S0021364018240128

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VL - 108

SP - 806

EP - 809

JO - JETP Letters

JF - JETP Letters

IS - 12

ER -

Thermodynamic Description of Crystalline Water Phases Containing Hydrogen

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