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,
Optical properties of sol–gel fabricated Co/SiO2 nanocomposites
✍ Scribed by Oleg Yeshchenko; Igor Dmitruk; Alexandr Alexeenko; Andriy Dmytruk; Vitaliy Tinkov
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 405 KB
- Volume
- 41
- Category
- Article
- ISSN
- 1386-9477
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In 2 S 3 -SiO 2 nanocomposite films (with molar ratios of In 2 S 3 :SiO 2 = 15:85, 10:90 and 5:95) were prepared on quartz substrates by sol-gel method. Highly confined nanoparticles of In 2 S 3 (radius ∼ 1.8-7 nm) were obtained in SiO 2 matrix, indicating SiO 2 to be a good capping agent for the na
## Abstract Transparent glass‐ceramics with composition of 95SiO~2~–5LaF~3~ doped with 0.1 mol% of Ho^3+^ or co‐doped with 0.1 mol% of Ho^3+^ and 0.3 mol% of Yb^3+^ were synthesized by thermal treatment of precursor sol–gel glasses. Segregation of LaF~3~ nanocrystals in the matrix was confirmed fro