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SiO2–LiBr Nanocomposite Sol–Gel Adsorbents of Water Vapor: Preparation and Properties

✍ Scribed by J. Mrowiec-Białoń; A.I. Lachowski; A.B. Jarzȩbski; L.G. Gordeeva; Y.I. Aristov

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
146 KB
Volume
218
Category
Article
ISSN
0021-9797

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✦ Synopsis

Water vapor adsorption on SiO 2 -LiBr sol-gel materials strongly depends on bromide content. Adsorption capacities exhibited by these materials at higher relative pressures can be as high as 0.8 kg of water/kg of adsorbent. These adsorbents can be regenerated by heating at 473 K and reused. However, a gradual decay of adsorption properties occurs during repeated adsorptiondesorption cycles. Thus, this family of adsorbents seems to be less attractive than the corresponding SiO 2 -CaCl 2 composites.

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