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Your search keyword '"Goryainov, Sergei V."' showing total 25 results
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25 results on '"Goryainov, Sergei V."'

4. Phase diagram and high-pressure boundary of hydrate formation in the ethane-water system

Author

Kurnosov, Alexander V., Berger, Ivan F., Ancharov, Alesksei I., Ogienko, Andrey G., Voronin, Vladimir I., Goryainov, Sergei V., Zhurko, Fridrikh V., Larionov, Eduard G., Aladko, Eugeny Y., Manakov, Andrey Y., and Lihacheva, Anna Y.

Subjects
Gas hydrates -- Chemical properties, Gas hydrates -- Thermal properties, X-rays -- Diffraction, X-rays -- Usage, Neutrons -- Diffraction, Neutrons -- Usage, Chemicals, plastics and rubber industries
Abstract

Dissociation temperatures of gas hydrate formed in the ethane-water system are studied at pressures up to 1500 MPa. In situ neutron diffraction analysis and X-ray diffraction analysis in a diamond anvil cell showed that the gas hydrate formed in the ethane-water system at 340, 700, and 1840 MPa and room temperature belongs to the cubic structure I (CS-I).

Published
2006

6. Phase diagram and high-pressure boundary of hydrate formation in the carbon dioxide?water system

Author

Manakov, Andrej Yu., Dyadin, Yuriy A., Ogienko, Andrey G., Kurnosov, Alexander V., Aladko, Eugeny Ya., Larionov, Eduard G., Zhurko, Fridrih V., Voronin, Vladimir I., Berger, Ivan F., Goryainov, Sergei V., Lihacheva, Anna Yu., and Ancharov, Aleksei I.

Subjects
Carbon dioxide -- Research, Hydrates -- Research, Hydrates -- Properties, X-rays -- Diffraction, X-rays -- Usage, Chemicals, plastics and rubber industries
Published
2009

7. Pressure-induced phase transitions in crystalline L- and DL-cysteine

Author

Minkov, Vasil S., Krylov, Alexander S., Boldyreva, Elena V., Goryainov, Sergei V., Bizyaev, Sergei N., and Vtyurin, Alexander N.

Subjects
Raman spectroscopy -- Analysis, Phase transformations (Statistical physics) -- Research, Hydrogen bonding -- Research, Cysteine proteinases -- Research, Crystals -- Structure, Crystals -- Research, Chemicals, plastics and rubber industries
Abstract

Raman spectroscopy was used to observe a series of extended reversible phase transitions in the crystals of DL- and L-cysteine. The results obtained provide insight into the role of the movements of the side-C[H.sub.2]SH groups and of the changes in the hydrogen-bonding type in DL- and L-cysteine during the phase transitions with increasing pressure.

Published
2008

17. Phase Diagram and High-Pressure Boundary of Hydrate Formation in the Ethane−Water System

Author

Kurnosov, Alexander V., primary, Ogienko, Andrey G., additional, Goryainov, Sergei V., additional, Larionov, Eduard G., additional, Manakov, Andrey Y., additional, Lihacheva, Anna Y., additional, Aladko, Eugeny Y., additional, Zhurko, Fridrikh V., additional, Voronin, Vladimir I., additional, Berger, Ivan F., additional, and Ancharov, Aleksei I., additional

Published
2006
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24. High-pressure boundary of hydrate formation in the tetrahydrofuran–water system

Author

Manakov, Andrei Y., Goryainov, Sergei V., Likhacheva, Anna Y., Fursenko, Boris A., Dyadin, Yuri A., and Kurnosov, Alexandr V.

Abstract

Using Raman spectroscopy, we found that at a pressure of 28.5 kbar tetrahydrofuran pentahydrate decomposes to solid tetrahydro-furan and ice; solid tetrahydrofuran retains its structure in the pressure range 1 bar–105 kbar.

Published
2000

25. Phase diagram and high-pressure boundary of hydrate formation in the carbon dioxide-water system.

Author

Manakov AY, Dyadin YA, Ogienko AG, Kurnosov AV, Aladko EY, Larionov EG, Zhurko FV, Voronin VI, Berger IF, Goryainov SV, Lihacheva AY, and Ancharov AI

Abstract

Experimental investigation of the phase diagram of the system carbon dioxide-water at pressures up to 2.7 GPa has been carried out in order to explain earlier controversial results on the decomposition curves of the hydrates formed in this system. According to X-ray diffraction data, solid and/or liquid phases of water and CO2 coexist in the system at room temperature within the pressure range from 0.8 to 2.6 GPa; no clathrate hydrates are observed. The results of neutron diffraction experiments involving the samples with different CO2/H2O molar ratios, and the data on the phase diagram of the system carbon dioxide-water show that CO2 hydrate of cubic structure I is the only clathrate phase present in this system under studied P-T conditions. We suppose that in the cubic structure I hydrate of CO2 multiple occupation of the large hydrate cavities with CO2 molecules takes place. At pressure of about 0.8 GPa this hydrate decomposes into components indicating the presence of the upper pressure boundary of the existence of clathrate hydrates in the system.

Published
2009
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