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          Institute: Fritz-Haber-Institut     Collection: Inorganic Chemistry     Display Documents

ID: 337741.0, Fritz-Haber-Institut / Inorganic Chemistry
Synthesis, characterization and catalytic properties of mesoporous Al-FSM-16 materials
Authors:Selvam, Thangaraj; Kostner, M.; Mabande, Godwin; Schwieger, Wilhelm; Pfänder, Norbert; Schlögl, Robert
Research Context:Electronmicroscopy of important catalysts
Date of Publication (YYYY-MM-DD):2007
Title of Journal:Journal of Porous Materials
Issue / Number:3
Start Page:263
End Page:272
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:Al-substituted mesoporous FSM-16 materials with different SiO2/Al2O3 (28–452) ratios have been synthesized by intercalating kanemite using cetyltrimethylammonium bromide (CTMABr) as the intercalating agent and sodium aluminate as the aluminium source, and characterized by different physico-chemical characterization techniques. The XRD measurements revealed a slightly disordered hexagonal packing of channels in the Al-FSM-16 samples. The thermal stability of Al-FSM-16 samples was confirmed by DTA analysis, where no structural changes were observed in the temperature range of 600–900° C. No significant changes were observed in the morphology of kanemite and the Al-FSM-16 sample obtained from kanemite as revealed by the SEM analysis. This result clearly indicated that the Al-FSM-16 sample is formed via a folded sheet mechanism. Moreover, TEM measurements confirmed the presence of a slightly disordered hexagonal array of channels in Al-FSM-16 in agreement with the XRD results. The BET surface areas (638–788 m2 g–1) and pore volumes (0.57–0.87 cm3 g–1) were indicative of the high porosity of the Al-FSM-16 samples. The Al- FSM-16 (SiO2/Al2O3 = 49) sample exhibited excellent hydrothermal stability at 150°C. The Al-FSM-16 samples were found to catalyze the isomerization of m-xylene to p- and o-xylenes.
Free Keywords:Kanemite  Mesoporous Al-FSM-16 materials  Isomerization of m-xylene
External Publication Status:published
Document Type:Article
Communicated by:Robert Schlögl
Affiliations:Fritz-Haber-Institut/Inorganic Chemistry/Microstructure
Fritz-Haber-Institut/Inorganic Chemistry/Inorganic Chemistry
External Affiliations:Institute of Chemical Reaction Engineering,
University of Erlangen-Nuremberg, Egerlandstr. 3,
Erlangen 91058, Germany
Identifiers:URL: [only subscribers]
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