Optimization of Cs content in Co-Mn-Al mixed oxide as catalyst for N2O decomposition

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F15%3A86095458" target="_blank" >RIV/61989100:27360/15:86095458 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985858:_____/15:00456093 RIV/61989100:27710/15:86095458 RIV/60461373:22310/15:43899913

Výsledek na webu

<a href="http://link.springer.com/article/10.1007%2Fs11164-015-2008-3" target="_blank" >http://link.springer.com/article/10.1007%2Fs11164-015-2008-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11164-015-2008-3" target="_blank" >10.1007/s11164-015-2008-3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Optimization of Cs content in Co-Mn-Al mixed oxide as catalyst for N2O decomposition

Popis výsledku v původním jazyce

A series of Co-Mn-Al mixed oxide catalysts with different Cs contents (0.5-4.6 wt%) was prepared by calcination of Co-Mn-Al hydrotalcite (Co:Mn: Al = 4:1:1), followed by impregnation by cesium salt (CsNO3, Cs2CO3) using the pore filling method. Chemicalanalysis, N2 sorption, temperature programmed reduction (TPR)-H2, temperature programmed desorption (TPD)-CO2 and TPD-NH3 and X-ray photoelectron spectroscopy (XPS) were used to characterize the catalysts. All prepared catalysts were tested for N2O catalytic decomposition in inert gas and in the presence of oxygen, water vapor and nitric oxide. The influence of Cs salts used for catalyst preparation and cesium content on catalyst activity were studied. A significant increase in catalytic activity with increasing amount of cesium promoter was observed without respect to the Cs precursor. The strong promotional effect of cesium is electronic in nature and is discussed in term of changes in surface composition and catalyst reducibility.

Název v anglickém jazyce

Optimization of Cs content in Co-Mn-Al mixed oxide as catalyst for N2O decomposition

Popis výsledku anglicky

A series of Co-Mn-Al mixed oxide catalysts with different Cs contents (0.5-4.6 wt%) was prepared by calcination of Co-Mn-Al hydrotalcite (Co:Mn: Al = 4:1:1), followed by impregnation by cesium salt (CsNO3, Cs2CO3) using the pore filling method. Chemicalanalysis, N2 sorption, temperature programmed reduction (TPR)-H2, temperature programmed desorption (TPD)-CO2 and TPD-NH3 and X-ray photoelectron spectroscopy (XPS) were used to characterize the catalysts. All prepared catalysts were tested for N2O catalytic decomposition in inert gas and in the presence of oxygen, water vapor and nitric oxide. The influence of Cs salts used for catalyst preparation and cesium content on catalyst activity were studied. A significant increase in catalytic activity with increasing amount of cesium promoter was observed without respect to the Cs precursor. The strong promotional effect of cesium is electronic in nature and is discussed in term of changes in surface composition and catalyst reducibility.

Druh

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

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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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>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Research on Chemical Intermediates

ISSN

0922-6168

e-ISSN

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Svazek periodika

41

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

14

Strana od-do

9319-9332

Kód UT WoS článku

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EID výsledku v databázi Scopus

2-s2.0-84953634988