New Composite Adsorbents "A Salt in a Porous Matrix": Designing Sorption Properties Научная публикация
Сборник | Handbook of Zeolites: Structure, Properties and Applications Монография, 978-160741046-1. 2009. 676 c. ISBN 9781607410461. Scopus |
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Вых. Данные | Год: 2009, Страницы: 499-521 Страниц : 23 | ||
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Реферат:
The design of innovative adsorbents with advanced and controllable properties is a challenging goal of material science. In this review paper, we survey recent achievements in the synthesis and study of a new family of adsorbents for multiple applications. These are composites "a salt in a porous matrix" (CSPM) which demonstrate an intermediate behaviour between solid adsorbents, complexes "gas-salt", and liquid absorbents. By now, more than fifty CSPMs based on halides, sulphates and nitrates of alkaline and alkaline earth metals, confined to various matrices (silica, alumina, porous carbons, clays, MCM-41, etc.), have been synthesised and studied as sorbents of water, methanol, ammonia, and carbon dioxide. Special attention is paid to discuss the effects of the pore size and guest-host interaction on the phase composition and properties of the confined salt. These effects result in the stabilization of the dispersed salt in two phases, namely, a crystalline phase and an X-ray amorphous phase. In small pores, both the phases are nonautonomous and possess sorption properties different from those of the bulk salt, which opens exciting synthetic opportunities. An important advantage of CSPMs is the possibility to modify controllably their sorption properties in a wide range by varying a) chemical nature of the impregnated salt, b) porous structure of the host matrix, c) amount of the confined salt, and d) synthesis conditions. This allows synthesis of innovative materials with advanced properties which fit the demands of particular applications. In this review, appropriate examples are given for various applications, including gas drying, maintaining relative humidity in museums and libraries and adsorptive heat pumps and chillers. Comparison of CSPMs with common single-component porous materials (silica gels and zeolites) has been made.
Библиографическая ссылка:
Aristov Y.I.
New Composite Adsorbents "A Salt in a Porous Matrix": Designing Sorption Properties
Глава монографии Handbook of Zeolites: Structure, Properties and Applications. – 978-160741046-1., 2009. – C.499-521. – ISBN 9781607410461. Scopus РИНЦ
New Composite Adsorbents "A Salt in a Porous Matrix": Designing Sorption Properties
Глава монографии Handbook of Zeolites: Structure, Properties and Applications. – 978-160741046-1., 2009. – C.499-521. – ISBN 9781607410461. Scopus РИНЦ
Идентификаторы БД:
Scopus | 2-s2.0-77649271838 |
РИНЦ | 21892913 |