caa a22 4500 477091741 CHVBK 20180405111517.0 cr unu---uuuuu 170330e19961201xx s 000 0 eng 10.1007/BF00489812 doi (NATIONALLICENCE)springer-10.1007/BF00489812 N2-adsorption on amorphous aluminosilicates: Application of the Kelvin equation and the T-plot analysis for mixed micro-mesoporous materials [Elektronische Daten] [B. De Witte, K. Vercruysse, K. Aernouts, P. Verwimp, J. Uytterhoeven] 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 was investigated, providing additional information on the pore architecture and specifically, on the degree of pore connectivity. This was verified by performing a similar statistical analysis for MCM-type materials. For amorphous aluminosilicates, the pore connectivity is shown to be a function of the pH of synthesis. The different cracking behaviour during drying of silicas and aluminosilicates prepared with organic additives could also be related to the various degrees of pore connectivity. In the second part of the article, a criterion for the applicability of the T-plot analysis for mixed micro-mesoporous products was searched for. Results indicate that when the micropores cover more than 20% of the total pore volume, reliable analyses are obtained by calculating the mean intercept for a T-layer thickness going from 2 to 9 Å. Kluwer Academic Publishers, 1996 mixed micro-mesoporous aluminosilicates nationallicence Kelvin equation nationallicence T-plot analysis nationallicence De Witte B. Centre for Surface Chemistry and Catalysis, Catholic University of Leuven, Kardinaal, Mercierlaan 92, B-3001, Heverlee, Belgium aut Vercruysse K. Centre for Surface Chemistry and Catalysis, Catholic University of Leuven, Kardinaal, Mercierlaan 92, B-3001, Heverlee, Belgium aut Aernouts K. Centre for Surface Chemistry and Catalysis, Catholic University of Leuven, Kardinaal, Mercierlaan 92, B-3001, Heverlee, Belgium aut Verwimp P. Centre for Surface Chemistry and Catalysis, Catholic University of Leuven, Kardinaal, Mercierlaan 92, B-3001, Heverlee, Belgium aut Uytterhoeven J. Centre for Surface Chemistry and Catalysis, Catholic University of Leuven, Kardinaal, Mercierlaan 92, B-3001, Heverlee, Belgium aut Journal of Porous Materials Springer Netherlands 2/4(1996-12-01), 307-313 1380-2224 2:4<307 1996 2 10934 https://doi.org/10.1007/BF00489812 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00489812 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- De Witte B. Centre for Surface Chemistry and Catalysis, Catholic University of Leuven, Kardinaal, Mercierlaan 92, B-3001, Heverlee, Belgium aut NATIONALLICENCE 700 1- Vercruysse K. Centre for Surface Chemistry and Catalysis, Catholic University of Leuven, Kardinaal, Mercierlaan 92, B-3001, Heverlee, Belgium aut NATIONALLICENCE 700 1- Aernouts K. Centre for Surface Chemistry and Catalysis, Catholic University of Leuven, Kardinaal, Mercierlaan 92, B-3001, Heverlee, Belgium aut NATIONALLICENCE 700 1- Verwimp P. Centre for Surface Chemistry and Catalysis, Catholic University of Leuven, Kardinaal, Mercierlaan 92, B-3001, Heverlee, Belgium aut NATIONALLICENCE 700 1- Uytterhoeven J. Centre for Surface Chemistry and Catalysis, Catholic University of Leuven, Kardinaal, Mercierlaan 92, B-3001, Heverlee, Belgium aut NATIONALLICENCE 773 0- Journal of Porous Materials Springer Netherlands 2/4(1996-12-01), 307-313 1380-2224 2:4<307 1996 2 10934 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer