Nitrate-citrate sol-gel synthesis of hydrated calcium aluminate and sorption materials on its basis

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DOI Доступ к ресурсу на сайте издателя			10.1134/S1070427218060034

Title: Nitrate-citrate sol-gel synthesis of hydrated calcium aluminate and sorption materials on its basis
Creator: Mishenina, Lyudmila N.
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Selyunina, Liliya A.
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Belyaninova, Tatyana V.
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Slizhov, Yuri G.
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Pakhnutova, Evgeniya A.
Date: 2018
DOI: 10.1134/S1070427218060034
Description: Sol-gel technique was used to develop a method for synthesis of hydrated tricalcium aluminate Ca3[Al(OH)6]2 and surface-layered gas-chromatographic sorbents on its basis. The materials obtained were examined by X-ray diffraction analysis, scanning electron microscopy, X-ray fluorescence microanalysis, adsorption porosimetry, and gas chromatography. It was found that cubic Ca3[Al(OH)6]2 is the main phase in the surface layer of the sorption materials. The Hammett indicator method was used to examine the acid-base properties and the variation of the content of active centers between sorbents obtained in different ways. The chromatographic retention parameters were determined for test compounds, and the polarity and selectivity of the sorbents under study was evaluated. It was shown that Chromaton N-AW modified with hydrated calcium aluminate can be used, with addition of SE-30 stationary liquid phase, to separate complex mixtures of organic compounds.

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collection(s): Химический факультет
Identifier: смотреть в электронном каталоге НБ ТГУ
Type: статьи в журналах
Source: Russian journal of applied chemistry. 2018. Vol. 91, № 6. P. 899-907
Language: eng

Created: 05-06-2019

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Химический факультет Nitrate-citrate sol-gel synthesis of hydrated calcium aluminate and sorption materials on its basis