Publication detail

One-pot synthesis of iron doped mesoporous silica catalyst for propane ammoxidation

Authors: Priecel Baďurová Eva | Raabová Kateřina | Bulánek Roman

Year: 2014

Type of publication: článek v odborném periodiku

Name of source: Dalton Transactions

Publisher name: Royal Society of Chemistry

Place: Cambridge

Page from-to: 3897-3905

Titles:

Language	Name	Abstract	Keywords
cze	Vsádková syntéza Fe dopovaných mezoporézních SiO2 katalyzátorů pro amoxidaci propanu	Fe-HMS katalyzátory byly úspěšně připraveny ve vsádkovém reaktoru při pokojové teplotě pomocí dodecylaminu jako prekurzoru.	Fe-HMS; NOx; oxidativní dehydrogenace; aktivní polohy; zeolity
eng	One-pot synthesis of iron doped mesoporous silica catalyst for propane ammoxidation	Iron doped hexagonal mesoporous silica (Fe-HMS) was successfully prepared by one-pot direct synthesis at ambient temperature by using dodecylamine as a templating agent. The catalyst has been characterized by various techniques including XRD, DR-UV-Vis, FTIR, SEM and N-2 adsorption. The obtained material exhibits very large surface area (above 1000 m(2) g(-1)), mesoporosity with narrow distribution of pores (around 4 nm) and nano-crystallites with the 20-30 nm in size. The concentration of iron in the catalyst was 0.95 wt%. The prepared material was tested in the direct ammoxidation of propane. It was shown that direct synthesis leads to better dispersion of the metal compared to the material prepared by impregnation of pure HMS silica. It is also demonstrated that this material is able to catalyze the direct ammoxidation of propane and shows quite high selectivity to acrylonitrile (52% at 11% conversion of propane).	fe-silicalite; nitrous-oxide; benzene hydroxylation; nitric-oxide; oxidative dehydrogenation; extraframework iron; fe-zsm-5 catalysts; n2o decomposition; active-sites; zeolites

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