Non-Hydrostatic Compression of Zeolite NaA in Water Medium: Connection to Anomalous Conductivity Научная публикация
Журнал |
Zeitschrift für Kristallographie
ISSN: 0044-2968 |
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Вых. Данные | Год: 2009, Том: 224, Номер: 3, Страницы: 137-143 Страниц : 7 DOI: 10.1524/zkri.2009.1128 | ||||||||
Ключевые слова | Compressibility, High pressure, Over-hydration, Powder diffraction structure analysis, X-ray diffraction, Zeolite NaA | ||||||||
Авторы |
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Организации |
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Информация о финансировании (4)
1 | Президиум РАН | 8 |
2 | Российский фонд фундаментальных исследований | 06-05-64542 |
3 | Сибирское отделение Российской академии наук | 43 |
4 | Президиум РАН | P-9-3 |
Реферат:
High-pressure synchrotron X-ray powder diffraction measurements of a synthetic zeolite NaA were carried out up to 2.5 GPa using pure water as pressure-transmitting (P) medium to provide non-hydrostatic (wet) conditions in a diamond anvil cell. The compressibility of wet zeolite NaA is similar to that measured at hydrostatic compression in water within the P-range 0–0.8 GPa, whereas between 1–2 GPa the zeolite becomes slightly more compressible and progressively amorphizes due to the non-hydrostatic conditions. Rietveld refinement at 0.37 GPa reveals a selective additional filling of the H2O sites in α- and β-cage, leading to about 30% increase of the total water content. The over-hydrated state of the zeolite is partially preserved after the pressure release. The over-hydration of zeolite pores, combined with a partial disordering at the onset of amorphization, apparently provides necessary conditions for the P-induced enhancement of water-cationic diffusion and the corresponding increase of ionic conductivity observed in zeolite NaA in non-hydrostatic water medium.
Библиографическая ссылка:
Likhacheva A.Y.
, Malyshev M.E.
, Manakov A.Y.
, Goryainov S.V.
, Ancharov A.I.
Non-Hydrostatic Compression of Zeolite NaA in Water Medium: Connection to Anomalous Conductivity
Zeitschrift für Kristallographie. 2009. V.224. N3. P.137-143. DOI: 10.1524/zkri.2009.1128 WOS Scopus РИНЦ
Non-Hydrostatic Compression of Zeolite NaA in Water Medium: Connection to Anomalous Conductivity
Zeitschrift für Kristallographie. 2009. V.224. N3. P.137-143. DOI: 10.1524/zkri.2009.1128 WOS Scopus РИНЦ
Даты:
Поступила в редакцию: | 29 авг. 2008 г. |
Принята к публикации: | 13 окт. 2008 г. |
Опубликована в печати: | 1 мар. 2009 г. |
Опубликована online: | 25 сент. 2009 г. |
Идентификаторы БД:
Web of science | WOS:000265199100002 |
Scopus | 2-s2.0-63849137237 |
РИНЦ | 13607237 |
Chemical Abstracts | 2009:460620 |
Chemical Abstracts (print) | 152:133007 |
OpenAlex | W2051733216 |