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Water Dynamics in Bulk and Dispersed in Silica CaCl2 Hydrates Studied by Neutron Scattering Methods Научная публикация

Журнал Microporous and Mesoporous Materials
ISSN: 1387-1811 , E-ISSN: 1873-3093
Вых. Данные Год: 2009, Том: 125, Номер: 1-2, Страницы: 46-50 Страниц : 5 DOI: 10.1016/j.micromeso.2009.02.016
Ключевые слова Neutron scattering, Silica, Water
Авторы Kolokolov Daniil I. 1,2 , Stepanov Alexander G. 2 , Glaznev Ivan S. 2 , Aristov Yurii I. 2 , Plazanet Marie 3 , Jobic Hervé 1
Организации
1 Institut de Recherches sur la Catalyse et l’Environnement de LYON, Université Lyon 1, CNRS, UMR 5256, 2 avenue Albert Einstein, F-69626 Villeurbanne, France
2 Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Prospekt Akademika Lavrentieva 5, Novosibirsk 630090, Russia
3 Institut Laue-Langevin, 6 rue Jules Horowitz, BP 156, 38042 Grenoble, France

Информация о финансировании (2)

1 Российский фонд фундаментальных исследований 05-03-34762
2 Посольство Франции в России

Реферат: Quasi-elastic and inelastic neutron scattering techniques have been used to study the dynamics of water in CaCl2 · nH2O (n = 1/3,2,4,6,9) hydrates dispersed in silica, in comparison with the bulk hydrates. Inelastic scattering shows that the water molecules in dispersed hydrates are in an amorphous state. Quasi-elastic scattering indicates a higher mobility of water in the hydrates dispersed in silica, compared to bulk hydrates. The self-diffusivity of water in the dispersed hydrates increases with water concentration, while remaining below the one of pure water. The neutron and pulsed-field gradient NMR diffusivities are similar, which indicates that the hydrates form a thin and continuous layer on the pore walls of silica.
Библиографическая ссылка: Kolokolov D.I. , Stepanov A.G. , Glaznev I.S. , Aristov Y.I. , Plazanet M. , Jobic H.
Water Dynamics in Bulk and Dispersed in Silica CaCl2 Hydrates Studied by Neutron Scattering Methods
Microporous and Mesoporous Materials. 2009. V.125. N1-2. P.46-50. DOI: 10.1016/j.micromeso.2009.02.016 WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
Поступила в редакцию: 23 окт. 2008 г.
Принята к публикации: 4 февр. 2009 г.
Опубликована online: 20 февр. 2009 г.
Опубликована в печати: 1 окт. 2009 г.
Идентификаторы БД:
Web of science: WOS:000269242200009
Scopus: 2-s2.0-67749133683
РИНЦ: 13606535
Chemical Abstracts: 2009:909660
Chemical Abstracts (print): 153:319473
OpenAlex: W2060659518
Цитирование в БД:
БД Цитирований
Web of science 2
Scopus 4
РИНЦ 4
OpenAlex 4
Альметрики: