Perfluorinated alkylsulfonic acid functionalized periodic mesostructured organosilica: A new acidic catalyst

Autor:	Wei Shen, François Béland, Micha Rat, Bendaoud Nohair, David Dubé, Serge Kaliaguine
Rok vydání:	2009
Předmět:	Thermogravimetric analysis Process Chemistry and Technology Inorganic chemistry Self-condensation Heterogeneous catalysis Silane Catalysis Heptanal Thermogravimetry chemistry.chemical_compound Adsorption chemistry Polymer chemistry
Zdroj:	Applied Catalysis A: General. 358:232-239
ISSN:	0926-860X
DOI:	10.1016/j.apcata.2009.02.015
Popis:	Fluorinated alkylsulfonic acid functionalized periodic mesostructured organosilica was one-pot synthesized using 1,2-bis(trimethoxysilyl)ethane (BTME) and a perfluorinated alkylsulfonic acid silane (PSTE) under acidic conditions using Pluronic 123 as surfactant. Wormhole mesostructures with surface areas up to 500 m 2 /g and narrow pore size distribution (around 4.1 nm) were obtained. This work thus provides an example of one-pot synthesis for new functionalized PMO acid catalysts. The physico-chemical properties were monitored by N 2 adsorption, XRD, thermogravimetric analysis, 13 C, 19 F and 29 Si MAS NMR and proton conduction. Liquid phase self-condensation of heptanal was performed at 75 °C in the presence of these catalysts, and results were compared with those obtained with several other heterogeneous hydrophobic acid catalysts.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8671262b4cbc8e274a79a9d43762a1b2 https://doi.org/10.1016/j.apcata.2009.02.015 Zobrazit plný text záznamu Full Text from ScienceDirect