Zobrazeno 1 - 10 of 29 pro vyhledávání: '"J. B. Uytterhoeven"'
1
N2-adsorption on amorphous aluminosilicates: Application of the Kelvin equation and the T-plot analysis for mixed micro-mesoporous materials
Autor: K. Vercruysse, J. B. Uytterhoeven, K. Aernouts, B. De Witte, P. Verwimp
Publikováno v: Journal of Porous Materials. 2:307-313
Amorphous aluminosilicates prepared by three different sol-gel procedures were submitted to N2-adsorption for textural evaluation. For each sample series, deviation of the experimental results from the ideal pore model imposed by the Kelvin equation
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ad7ccc643dcaa69967472982760cf0cc
https://doi.org/10.1007/bf00489812
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2
Aging of aluminosilicate and silica gels in aqueous solutions of various pH and Al content, a textural and structural evaluation
Autor: K. Aernouts, B. De Witte, J. B. Uytterhoeven
Publikováno v: Microporous Materials. 7:97-108
Silicas and aluminosilicates are prepared from tetraethylorthosilicate, Al(NO3)3 and alternatively formamide or dimethylformamide. Gel bodies cast under acid conditions (pH=2–3) are subsequently aged in aqueous solutions of higher pH. Changes in th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4a2359f9e9058c8c75d1cf65ed5b3d9d
https://doi.org/10.1016/0927-6513(96)00017-x
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3
Distribution of organic groups in silica gels prepared from organo-alkoxysilanes
Autor: B.M. De Witte, D. Commers, J. B. Uytterhoeven
Publikováno v: Journal of Non-Crystalline Solids. 202:35-41
Organically modified silicas were prepared from mixtures of tetraethylorthosilane and methyltriethoxysilane (0–40 mol%) or dimethyldiethoxysilane (0–20 mol%) by a two-step sol-gel synthesis procedure involving sol aging at pH = 1.95 and gel forma
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e0e5c5b230e324b122626ff7126b2a0d
https://doi.org/10.1016/0022-3093(96)00171-8
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4
Tailoring texture of amorphous aluminosilicates by using organic additives
Autor: B. De Witte, J. B. Uytterhoeven, K. Van Den Bruel, K. Aernouts, P. Verwimp
Publikováno v: Journal of Porous Materials. 1:127-137
Amorphous aluminosilicates and silicas are prepared according to an acid or an alkaline sol-gel synthesis procedure, starting respectively from tetraethylorthosilicate and Al(NO3)3 or aqueous silicate and aluminate solutions. The textural behavior of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::abf1fa3c942edfce1f2835563c1b0158
https://doi.org/10.1007/bf00486652
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9
The Adsorption of Aromatic, Heterocyclic and Cyclic Ammonium Cations by Montmorillonite
Autor: E. F. Vansant, J. B. Uytterhoeven
Publikováno v: Clay Minerals. 10:61-69
The adsorption of organic ions derived from ammonium, containing aromatic and saturated rings, was studied using different techniques. The ions with acid character produced a complicated set of reactions including aluminium extraction, proton adsorpt
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::819a7d6e2df0d24bbbdfcbb5dbba3b3c
https://doi.org/10.1180/claymin.1973.010.2.01
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