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Determination of physisorbed and chemisorbed waters on silica gel and porous silica glass by means of desorption isotherms of water vapor

✍ Scribed by Hiromitu Naono; Reiko Fujiwara; Masahide Yagi

Publisher
Elsevier Science
Year
1980
Tongue
English
Weight
581 KB
Volume
76
Category
Article
ISSN
0021-9797

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Porous Texture and Surface Character of
Porous Texture and Surface Character of Dehydroxylated and Rehydroxylated MCM-41 Mesoporous Silicasβ€”Analysis of Adsorption Isotherms of Nitrogen Gas and Water Vapor
✍ Hiromitu Naono; Masako Hakuman; Takashi Tanaka; Nobuki Tamura; Kazuyuki Nakai πŸ“‚ Article πŸ“… 2000 πŸ› Elsevier Science 🌐 English βš– 209 KB

Four samples of MCM-41 mesoporous silicas whose average pore diameters are 2.4, 2.8, 3.2, and 3.6 nm were prepared using sodium orthosilicate and cationic surfactants of [CH(3)(CH(2))(n)N(CH(3))(3)]X (n=11, 13, 15, 17). These four samples were calcined at 1123 K in vacuo to obtain the dehydroxylated