Tailoring of Fe-ferrierite for N2O decomposition: On the decisive role of framework Al distribution for catalytic activity of Fe species in Fe-ferrierite

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F11%3A00363452" target="_blank" >RIV/61388955:_____/11:00363452 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.micromeso.2011.05.004" target="_blank" >http://dx.doi.org/10.1016/j.micromeso.2011.05.004</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.micromeso.2011.05.004" target="_blank" >10.1016/j.micromeso.2011.05.004</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Tailoring of Fe-ferrierite for N2O decomposition: On the decisive role of framework Al distribution for catalytic activity of Fe species in Fe-ferrierite

Popis výsledku v původním jazyce

Two parent ferrierites with similar Si/Al ratio (8.5 and 10.5), a commercial and a laboratory specimen with different distribution of Al atoms in the framework, were used for the preparation of model Fe-ferrierite catalysts for N2O decomposition. As proven by UV?Vis analysis of the fully exchanged Co(II)-ferrierites, the two ferrierites differ in the distribution of framework Al between Al?O?(Si?O)2?Al sequences in one ring (Al pairs) and single Al atoms in different rings (Al?O?(Si?O)n>2?Al sequences).The part of the framework Al atoms arranged in Al pairs mostly in ? six-member rings was 66% and 30% of Al for the two ferrierites. Two series of Fe-ferrierites with low concentration between 0.4 and 2.1 wt.% Fe were prepared, containing Fe ions in cationic sites, and valence and siting analyzed by Mössbauer spectroscopy of 57Fe isotope enriched (96%) samples.

Název v anglickém jazyce

Tailoring of Fe-ferrierite for N2O decomposition: On the decisive role of framework Al distribution for catalytic activity of Fe species in Fe-ferrierite

Popis výsledku anglicky

Two parent ferrierites with similar Si/Al ratio (8.5 and 10.5), a commercial and a laboratory specimen with different distribution of Al atoms in the framework, were used for the preparation of model Fe-ferrierite catalysts for N2O decomposition. As proven by UV?Vis analysis of the fully exchanged Co(II)-ferrierites, the two ferrierites differ in the distribution of framework Al between Al?O?(Si?O)2?Al sequences in one ring (Al pairs) and single Al atoms in different rings (Al?O?(Si?O)n>2?Al sequences).The part of the framework Al atoms arranged in Al pairs mostly in ? six-member rings was 66% and 30% of Al for the two ferrierites. Two series of Fe-ferrierites with low concentration between 0.4 and 2.1 wt.% Fe were prepared, containing Fe ions in cationic sites, and valence and siting analyzed by Mössbauer spectroscopy of 57Fe isotope enriched (96%) samples.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

—

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Microporous and Mesoporous Materials

ISSN

1387-1811

e-ISSN

—

Svazek periodika

146

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

12

Strana od-do

172-183

Kód UT WoS článku

000295769400022

EID výsledku v databázi Scopus

—