Surface activation of mesoporous ordered silica materials by aluminum and rhodium, their characterization and catalytic activity for N2O decomposition

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F14%3A86093397" target="_blank" >RIV/61989100:27360/14:86093397 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27360/14:86093399 RIV/61989100:27710/14:86093397 RIV/61989100:27710/14:86093399 RIV/61989100:27730/14:86093397 RIV/61989100:27730/14:86093399

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Surface activation of mesoporous ordered silica materials by aluminum and rhodium, their characterization and catalytic activity for N2O decomposition

Popis výsledku v původním jazyce

Three different mesoporous ordered silica materials such as MCM-41, MCM-41 with aluminum and SBA-15 were prepared. Samples with aluminum (2 ? 3 wt%) grafted on the surface by molecular designed dispersion method (MDD) and aluminum (2 ? 5 wt%) incorporated into MCM-41 were synthesized. In further step, rhodium (1.3 - 2.9 wt%) was used as an active metal for the catalytic reaction of N2O decomposition. Prepared catalysts were characterized by nitrogen sorption, electron-probe microanalysis, energy dispersive X-ray analysis, temperature programmed reduction of hydrogen, temperature programmed desorption of ammonia and UV-vis-DR spectroscopy. The activity of catalysts was in the order Al(incorporated)-MCM-41+Rh > MCM-41+Al(grafted)+Rh > SBA-15+Rh = MCM-41+Rh. The role of different supports influencing the properties of active sites created by rhodium ions is discussed.

Název v anglickém jazyce

Surface activation of mesoporous ordered silica materials by aluminum and rhodium, their characterization and catalytic activity for N2O decomposition

Popis výsledku anglicky

Three different mesoporous ordered silica materials such as MCM-41, MCM-41 with aluminum and SBA-15 were prepared. Samples with aluminum (2 ? 3 wt%) grafted on the surface by molecular designed dispersion method (MDD) and aluminum (2 ? 5 wt%) incorporated into MCM-41 were synthesized. In further step, rhodium (1.3 - 2.9 wt%) was used as an active metal for the catalytic reaction of N2O decomposition. Prepared catalysts were characterized by nitrogen sorption, electron-probe microanalysis, energy dispersive X-ray analysis, temperature programmed reduction of hydrogen, temperature programmed desorption of ammonia and UV-vis-DR spectroscopy. The activity of catalysts was in the order Al(incorporated)-MCM-41+Rh > MCM-41+Al(grafted)+Rh > SBA-15+Rh = MCM-41+Rh. The role of different supports influencing the properties of active sites created by rhodium ions is discussed.

Druh

O - Ostatní výsledky

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

2014

Kód důvěrnosti údajů

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