Large pore ordered mesoporous silica materials with 3D cubic Ia3d structure. A comprehensive gas adsorption study.

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autorinnen und Autoren: Thommes M
Zeitschrift: Studies in Surface Science and Catalysis
Verlag: Elsevier B.V.
Jahr der Veröffentlichung: 2007
Band: 170B
Heftnummer: From Zeolites to Porous MOF Materials
Seitenbereich: 1843-1849-1849
ISSN: 0167-2991


Abstract

The paper deals with the systematic gas adsorption investigation and structural characterization of novel ordered mesoporous SiO2 materials with 3D cubic Ia3d structure (KIT-6). The pore condensation and hysteresis behavior of nitrogen (at 77.4 K) and argon (at 77.4 K and 87.3 K) was studied in KIT-6 silicas of different porosities and various mean pore diams. (from 5 nm up to 11 nm). We compared the sorption and phase behavior of nitrogen and argon confined to these 3-D cubic porous systems with their behavior in pseudo 1-D pore systems (e.g. SBA-15). Our results provide information on how pore connectivity and network effects influence pore condensation and hysteresis, and the validity of the single pore model for the pore size anal. of materials consisting in pore networks is discussed. [on SciFinder(R)]


FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Thommes, Matthias Prof. Dr.
Lehrstuhl für Thermische Verfahrenstechnik

Zuletzt aktualisiert 2019-28-02 um 20:53