| Инд. авторы: | Rashchenko S.V., Seryotkin Y.V., Bakakin V.V. |
| Заглавие: | An X-ray single crystal study of alkaline cations influence on laumontite hydration ability: II. Pressure-induced hydration of Na,K-rich laumontite |
| Библ. ссылка: | Rashchenko S.V., Seryotkin Y.V., Bakakin V.V. An X-ray single crystal study of alkaline cations influence on laumontite hydration ability: II. Pressure-induced hydration of Na,K-rich laumontite // Microporous and Mesoporous Materials. - 2012. - Vol.159. - P.126-131. - ISSN 1387-1811. - EISSN 1873-3093. |
| Внешние системы: | DOI: 10.1016/j.micromeso.2012.04.029; SCOPUS: 2-s2.0-84861168624; SCOPUS: 2-s2.0-84155166995; |
| Реферат: | eng: In the present work the influence of alkaline cations on pressure behavior of laumontite |(Ca 4-xNa x)K x(H 2O) n|[Al 8Si 16O 48] was studied using single-crystal X-ray diffraction in diamond-anvil cell with water medium. Na,K-rich laumontite, containing 13.4 H 2O molecules per formula at ambient pressure (0.0001 GPa), hydrates up to ≈15.5 H 2O in the pressure range of 0.0001-0.75 GPa. This pressure-induced hydration occurs due to the occupancy increase of already populated water sites and does not cause any essential structure changes. The bulk modulus K 0 = 39(3) GPa was evaluated for Na,K-rich laumontite using normalized volumes. © 2012 Elsevier Inc. All rights reserved.
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| Ключевые слова: | High pressure; Hydration; Laumontite; Zeolite; Hydration; Zeolites; X ray diffraction; Sodium; Hydrates; Crystal structure; X-ray single crystal; Structure change; Single crystal x-ray diffraction; Pressure ranges; Laumontite; High pressure; Diamond-anvil cell; Ambient pressures; Crystal structure; Alkaline cations; |
| Издано: | 2012 |
| Физ. характеристика: | с.126-131 |