Oxidation of Dichloromethane over Pt, Pd, Rh, and V2O5 Catalysts Supported on Al2O3, Al2O3-TiO2 and Al2O3-CeO2

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F13%3A00390989" target="_blank" >RIV/67985858:_____/13:00390989 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.apcatb.2013.01.058" target="_blank" >http://dx.doi.org/10.1016/j.apcatb.2013.01.058</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apcatb.2013.01.058" target="_blank" >10.1016/j.apcatb.2013.01.058</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Oxidation of Dichloromethane over Pt, Pd, Rh, and V2O5 Catalysts Supported on Al2O3, Al2O3-TiO2 and Al2O3-CeO2

Popis výsledku v původním jazyce

Pt, Pd, Rh and V2O5 metallic monolith catalysts supported on Al2O3, Al2O3?TiO2 and Al2O3?CeO2 were examined in the oxidation of dichloromethane (DCM). To improve the selectivity towards HCl and to prevent catalysts? deactivation, the water amount in thefeed gas mixture was adjusted to 1.5 wt.%. All tested catalysts showed high activity in DCM oxidation and high selectivity towards HCl formation. Over Pt/Al2O3 and Rh/Al2O3, the 100% DCM conversions were reached at 420 C and 440 C and the maximum HCl yields detected were 92% and 93%, respectively. Addition of CeO2 to the Al2O3 support affected the activity only a little, while somewhat more visible enhancement was seen with the addition of Pt, Pd, Rh and V2O5. However, more positive effect on the HCl and/or CO2 yield was observed. Results showed that high acidity together with increased reducibility leads to an active catalyst for DCM oxidation. After the 40.3 h stability test no obvious change in the Pt/Al2O3 catalysts? performance was

Název v anglickém jazyce

Oxidation of Dichloromethane over Pt, Pd, Rh, and V2O5 Catalysts Supported on Al2O3, Al2O3-TiO2 and Al2O3-CeO2

Popis výsledku anglicky

Pt, Pd, Rh and V2O5 metallic monolith catalysts supported on Al2O3, Al2O3?TiO2 and Al2O3?CeO2 were examined in the oxidation of dichloromethane (DCM). To improve the selectivity towards HCl and to prevent catalysts? deactivation, the water amount in thefeed gas mixture was adjusted to 1.5 wt.%. All tested catalysts showed high activity in DCM oxidation and high selectivity towards HCl formation. Over Pt/Al2O3 and Rh/Al2O3, the 100% DCM conversions were reached at 420 C and 440 C and the maximum HCl yields detected were 92% and 93%, respectively. Addition of CeO2 to the Al2O3 support affected the activity only a little, while somewhat more visible enhancement was seen with the addition of Pt, Pd, Rh and V2O5. However, more positive effect on the HCl and/or CO2 yield was observed. Results showed that high acidity together with increased reducibility leads to an active catalyst for DCM oxidation. After the 40.3 h stability test no obvious change in the Pt/Al2O3 catalysts? performance was

Druh

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

CEP obor

CC - Organická chemie

OECD FORD obor

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Projekt

—

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

Applied Catalysis B - Environmental

ISSN

0926-3373

e-ISSN

—

Svazek periodika

138-139

Číslo periodika v rámci svazku

JUL 17

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

33-42

Kód UT WoS článku

000319087900005

EID výsledku v databázi Scopus

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