Total Oxidation of Ethanol and Toluene over Ceria-Zirconia Supported Platinum Catalysts.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F16%3A00459308" target="_blank" >RIV/67985858:_____/16:00459308 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1515/chempap-2016-0028" target="_blank" >http://dx.doi.org/10.1515/chempap-2016-0028</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1515/chempap-2016-0028" target="_blank" >10.1515/chempap-2016-0028</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Total Oxidation of Ethanol and Toluene over Ceria-Zirconia Supported Platinum Catalysts.

Popis výsledku v původním jazyce

The effect of platinum loading (0.09 - 1.00 wt. %) on the performance of ceria-zirconia supported catalysts in total oxidation of ethanol and toluene in air was investigated. The introduction of platinum promoted the reduction of surface ceria and decreased the acidity of the catalysts. In ethanol oxidation, the temperature of 50 % conversion decreased with increasing platinum content. This increase in catalytic performance was more pronounced for the catalysts with 0.59 and 1.00 wt. % Pt. On the other hand, higher amount of by-products (mainly acetaldehyde) was observed at increased platinum loadings. For all catalysts, a correlation between their H2-TPR profiles and catalytic performance was revealed. In toluene oxidation, only the catalysts with 0.59 and 1.00 wt. % Pt exhibited lower temperature of 50 % conversion than pristine ceriazirconia. The effect of platinum loading was less pronounced than in ethanol oxidation and the correlation between reduction behaviour and catalytic performance was not observed. The superior catalytic performance of the catalysts with 0.59 and 1.00 wt. % of Pt in both ethanol and toluene oxidation was ascribed to the presence of larger platinum nanoparticles, which were not observed at lower Pt loadings.

Název v anglickém jazyce

Total Oxidation of Ethanol and Toluene over Ceria-Zirconia Supported Platinum Catalysts.

Popis výsledku anglicky

The effect of platinum loading (0.09 - 1.00 wt. %) on the performance of ceria-zirconia supported catalysts in total oxidation of ethanol and toluene in air was investigated. The introduction of platinum promoted the reduction of surface ceria and decreased the acidity of the catalysts. In ethanol oxidation, the temperature of 50 % conversion decreased with increasing platinum content. This increase in catalytic performance was more pronounced for the catalysts with 0.59 and 1.00 wt. % Pt. On the other hand, higher amount of by-products (mainly acetaldehyde) was observed at increased platinum loadings. For all catalysts, a correlation between their H2-TPR profiles and catalytic performance was revealed. In toluene oxidation, only the catalysts with 0.59 and 1.00 wt. % Pt exhibited lower temperature of 50 % conversion than pristine ceriazirconia. The effect of platinum loading was less pronounced than in ethanol oxidation and the correlation between reduction behaviour and catalytic performance was not observed. The superior catalytic performance of the catalysts with 0.59 and 1.00 wt. % of Pt in both ethanol and toluene oxidation was ascribed to the presence of larger platinum nanoparticles, which were not observed at lower Pt loadings.

Druh

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

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

—

Projekt

<a href="/cs/project/GP13-24186P" target="_blank" >GP13-24186P: Keramické monolity s katalytickou vrstvou pro úplnou oxidaci těkavých organických látek</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Chemical Papers

ISSN

0366-6352

e-ISSN

—

Svazek periodika

70

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

9

Strana od-do

898-906

Kód UT WoS článku

000379757200004

EID výsledku v databázi Scopus

2-s2.0-85010377827