Adsorption and Textural Properties of LSX Zeolite at the Initial Stages of Destruction Full article
Journal |
Protection of Metals and Physical Chemistry of Surfaces
ISSN: 2070-2051 , E-ISSN: 2070-206X |
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Output data | Year: 2017, Volume: 53, Number: 6, Pages: 989-994 Pages count : 6 DOI: 10.1134/S2070205117060168 | ||||
Tags | CO2 and CH4 adsorption, LSX zeolite, mechanism of mesopores’ formation, NaCl ion exchange, NH4Cl ion exchange | ||||
Authors |
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Affiliations |
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Funding (1)
1 | Federal Agency for Scientific Organizations | V.44.1.16. |
Abstract:
Alteration of adsorption properties and porous structure (texture) of the KNaLSX zeolite at the initial stages of its destruction during ion-exchange modification in solutions of NH4Cl and thermal shock under vacuum degassing has been studied. Transmission electron microscopy, X-ray diffraction, low-temperature nitrogen adsorption and adsorption of CO2 and CH4 at 273 K were applied for characterization of the obtained materials. Conversion of the predominantly microporous material to the material with threemode pore-size distribution is shown. Significant fraction of the faujasite phase and corresponding micropores are preserved in the material. This is accompanied with formation of pores of two types: quasi-spherical mesopores with the characteristic size of 5 nm and the meso-macropores with typical size exceeding 40 nm. Basing on the obtained results, a mechanism of textural changes in the LSX zeolite treated under applied conditions is proposed.
Cite:
Leonova A.A.
, Ayupov A.B.
, Fenelonov V.B.
, Mel’gunov M.S.
Adsorption and Textural Properties of LSX Zeolite at the Initial Stages of Destruction
Protection of Metals and Physical Chemistry of Surfaces. 2017. V.53. N6. P.989-994. DOI: 10.1134/S2070205117060168 WOS Scopus РИНЦ
Adsorption and Textural Properties of LSX Zeolite at the Initial Stages of Destruction
Protection of Metals and Physical Chemistry of Surfaces. 2017. V.53. N6. P.989-994. DOI: 10.1134/S2070205117060168 WOS Scopus РИНЦ
Original:
Леонова А.А.
, Аюпов А.Б.
, Фенелонов В.Б.
, Мельгунов М.С.
Адсорбционные и текстурные свойства цеолита LSX на начальных стадиях разрушения
Физикохимия поверхности и защита материалов. 2017. Т.53. №6. С.586-591. DOI: 10.7868/S0044185617060171 РИНЦ
Адсорбционные и текстурные свойства цеолита LSX на начальных стадиях разрушения
Физикохимия поверхности и защита материалов. 2017. Т.53. №6. С.586-591. DOI: 10.7868/S0044185617060171 РИНЦ
Dates:
Submitted: | Sep 26, 2016 |
Published print: | Nov 1, 2017 |
Published online: | Mar 15, 2018 |
Identifiers:
Web of science | WOS:000427652800006 |
Scopus | 2-s2.0-85044076312 |
Elibrary | 35514276 |
Chemical Abstracts | 2018:517699 |
OpenAlex | W2791272661 |