One-pot synthesis of iron doped mesoporous silica catalyst for propane ammoxidation
ČlánekStatus neznámýpeer-reviewedpublishedDatum publikování
2014
Vedoucí práce
Oponent
Název časopisu
Název svazku
Vydavatel
Royal Society of Chemistry
Abstrakt
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 N2 adsorption. The obtained material exhibits very large surface area (above 1000 m2 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).
Rozsah stran
p. 3897-3905
ISSN
1477-9226
1477-9234
1477-9234
Trvalý odkaz na tento záznam
Projekt
Zdrojový dokument
Dalton Transactions. 2014, vol. 43, issue 10
Vydavatelská verze
http://pubs.rsc.org/en/Content/ArticleLanding/2014/DT/c3dt52695j#!divAbstract
Přístup k e-verzi
open access