Quantitative aspects of the identification of Fe(II) moieties in ZSM-5 zeolites with various pore hierarchies

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This work was attempted in order to provide a new and well-established approach for the quantification of Fe2+ sites in zeolites. The experimental procedure was based on carbon monoxide and nitrogen monoxide sorption in Fe-exchanged ZSM-5 zeolites with different pore hierarchies, which was followed by IR spectroscopy. The values of the absorption coefficients of the respective monocarbonyl Fe2+(CO) and mononitrosyl Fe2+( NO) IR bands were obtained. In turn, the concentrations of Fe(II) moieties of various kinds were calculated and discussed with regard to the composition (Si/Al and Fe/Al ratios) of the zeolites studied.
Publisher
ROYAL SOC CHEMISTRY
Issue Date
2015-05
Language
English
Article Type
Article
Citation

DALTON TRANSACTIONS, v.44, no.17, pp.8031 - 8040

ISSN
1477-9226
DOI
10.1039/c5dt00424a
URI
http://hdl.handle.net/10203/198829
Appears in Collection
CBE-Journal Papers(저널논문)
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