Role of Pt(0) in bimetallic (Pt,Fe)-FER catalysts in the N2O decomposition

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10128826" target="_blank" >RIV/00216208:11320/13:10128826 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61388955:_____/13:00379902

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.micromeso.2012.07.035" target="_blank" >http://dx.doi.org/10.1016/j.micromeso.2012.07.035</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.micromeso.2012.07.035" target="_blank" >10.1016/j.micromeso.2012.07.035</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Role of Pt(0) in bimetallic (Pt,Fe)-FER catalysts in the N2O decomposition

Popis výsledku v původním jazyce

Presence of metallic Pt clusters highly enhances catalytic activity of iron ferrierite in N2O decomposition, even at low Pt loading (Pt/Al > 0.003). Platinum (II) cations in ferrierite are inactive; only some low activity appears with pre-reduced samples. The behavior of bimetallic Pt,Fe-ferrierites samples is strongly dependent on the sequence of introduction of platinum and iron ions into the ferrierite. This sequence does not affect cationic state of iron ions, however, it changes the state of platinum; metallic Pt clusters are formed in samples where platinum was introduced as the first component. Formation of Pt(0) clusters has been assigned to reduction of Pt ions by the decomposing acetylacetone in solution used for the ion exchange of iron ions. The presence of Pt(0) in iron ferrierite samples changes the composition of the products of decomposition of the surface NOx species formed during the decomposition of nitrous oxide. It decreases the fraction of nitrogen dioxide and inc

Název v anglickém jazyce

Role of Pt(0) in bimetallic (Pt,Fe)-FER catalysts in the N2O decomposition

Popis výsledku anglicky

Presence of metallic Pt clusters highly enhances catalytic activity of iron ferrierite in N2O decomposition, even at low Pt loading (Pt/Al > 0.003). Platinum (II) cations in ferrierite are inactive; only some low activity appears with pre-reduced samples. The behavior of bimetallic Pt,Fe-ferrierites samples is strongly dependent on the sequence of introduction of platinum and iron ions into the ferrierite. This sequence does not affect cationic state of iron ions, however, it changes the state of platinum; metallic Pt clusters are formed in samples where platinum was introduced as the first component. Formation of Pt(0) clusters has been assigned to reduction of Pt ions by the decomposing acetylacetone in solution used for the ion exchange of iron ions. The presence of Pt(0) in iron ferrierite samples changes the composition of the products of decomposition of the surface NOx species formed during the decomposition of nitrous oxide. It decreases the fraction of nitrogen dioxide and inc

Druh

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

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/GA203%2F09%2F1627" target="_blank" >GA203/09/1627: Studium dynamiky aktivních center v krystalických nanoporézních alumosilikátech pomocí molekulového modelování</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

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

165

Číslo periodika v rámci svazku

August

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

40-47

Kód UT WoS článku

000311070500007

EID výsledku v databázi Scopus

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