Catalytic reduction of NO with CO over supported Fe-based catalysts

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F19%3A43958137" target="_blank" >RIV/49777513:23640/19:43958137 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Catalytic reduction of NO with CO over supported Fe-based catalysts

Popis výsledku v původním jazyce

The catalytic activity of a series of La-Fe catalysts supported on activated carbon was studied for selective catalytic reduction of NO by CO. Increasing the amount of La in the catalyst structure causes an increase in the Fe2+/Fe3+ ratio. The results showed that by increasing the La amount in catalysts, the catalytic activity of the AC-supported catalysts was enhanced because of the synergistic interactions between surface oxygen vacancies and Fe2+ species in the ACsupported catalysts. Due to the high catalytic performance of MnOx, the NOx conversion of Mn@La3-Fe1/AC catalyst was improved to 92.67% at the absence of oxygen at 400 °C. The Mn promoted La3-Fe1/AC catalyst showed the highest NOx conversion of 93.8% at 400 °C in the presence of 10% excess oxygen. Compared with other prepared catalysts, the Mn@La3-Fe1/CNT catalyst showed the highest activity due to the higher Fe2+/Fe3+, which confirmed by XPS analysis. The double exchange behavior of Mn3+ and Mn4+ can increase the number of SOV and increase catalytic redox properties.

Název v anglickém jazyce

Catalytic reduction of NO with CO over supported Fe-based catalysts

Popis výsledku anglicky

The catalytic activity of a series of La-Fe catalysts supported on activated carbon was studied for selective catalytic reduction of NO by CO. Increasing the amount of La in the catalyst structure causes an increase in the Fe2+/Fe3+ ratio. The results showed that by increasing the La amount in catalysts, the catalytic activity of the AC-supported catalysts was enhanced because of the synergistic interactions between surface oxygen vacancies and Fe2+ species in the ACsupported catalysts. Due to the high catalytic performance of MnOx, the NOx conversion of Mn@La3-Fe1/AC catalyst was improved to 92.67% at the absence of oxygen at 400 °C. The Mn promoted La3-Fe1/AC catalyst showed the highest NOx conversion of 93.8% at 400 °C in the presence of 10% excess oxygen. Compared with other prepared catalysts, the Mn@La3-Fe1/CNT catalyst showed the highest activity due to the higher Fe2+/Fe3+, which confirmed by XPS analysis. The double exchange behavior of Mn3+ and Mn4+ can increase the number of SOV and increase catalytic redox properties.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

<a href="/cs/project/LO1402" target="_blank" >LO1402: CENTEM+</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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