Surface activation of mesoporous ordered silica materials by aluminum and cobalt, 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%3A86093401" target="_blank" >RIV/61989100:27360/14:86093401 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27710/14:86093401

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Surface activation of mesoporous ordered silica materials by aluminum and cobalt, 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 grafted and incorporated aluminum and SBA-15 were prepared by the molecular designed dispersion method (MDD). In further step, cobalt (1-16 wt%) was used as an active transition metal for the catalytic reaction of N2O decomposition. The possible interaction of acetylacetonate complexes as precursors with support surfaces by hydrogen bonding versus ligand exchange mechanism were tested by infrared spectroscopy and thermogravimetric analysis. Prepared catalysts were characterized by nitrogen sorption, electron-probe microanalysis, energy dispersive X-ray analysis, X-ray diffraction, scanning electron microscopy, UV-vis-DR spectroscopy, temperature programmed reduction of hydrogen and temperature programmed desorption of ammonia. The N2O conversion slightly increased with the higher content of aluminum. The role of different supports influencing the properties of active sites created by cobalt ions is discusse

Název v anglickém jazyce

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

Popis výsledku anglicky

Three different mesoporous ordered silica materials such as MCM-41, MCM-41 with grafted and incorporated aluminum and SBA-15 were prepared by the molecular designed dispersion method (MDD). In further step, cobalt (1-16 wt%) was used as an active transition metal for the catalytic reaction of N2O decomposition. The possible interaction of acetylacetonate complexes as precursors with support surfaces by hydrogen bonding versus ligand exchange mechanism were tested by infrared spectroscopy and thermogravimetric analysis. Prepared catalysts were characterized by nitrogen sorption, electron-probe microanalysis, energy dispersive X-ray analysis, X-ray diffraction, scanning electron microscopy, UV-vis-DR spectroscopy, temperature programmed reduction of hydrogen and temperature programmed desorption of ammonia. The N2O conversion slightly increased with the higher content of aluminum. The role of different supports influencing the properties of active sites created by cobalt ions is discusse

Druh

O - Ostatní výsledky

CEP obor

CI - Průmyslová chemie a chemické inženýrství

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>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