Effect of Calcination Temperature on the Structure and Catalytic Performance of the Ni/Al2O3 and Ni-Ce/Al2O3 Catalysts in Oxidative Dehydrogenation of Ethane

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F15%3A39900545" target="_blank" >RIV/00216275:25310/15:39900545 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1021/acs.iecr.5b03425" target="_blank" >http://dx.doi.org/10.1021/acs.iecr.5b03425</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.iecr.5b03425" target="_blank" >10.1021/acs.iecr.5b03425</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of Calcination Temperature on the Structure and Catalytic Performance of the Ni/Al2O3 and Ni-Ce/Al2O3 Catalysts in Oxidative Dehydrogenation of Ethane

Popis výsledku v původním jazyce

We studied the effect of calcination temperature of Ni/Al2O3 and Ni-Ce/Al2O3 catalysts on the specific surface area, acidity, ratio of pore volume and specific surface area, reducibility reflecting the changing population of Ni(Td) and Ni(Oh) species, and activity/selectivity in oxidative dehydrogenation of ethane. It should be stressed that the role of Ce as a promoter on the catalytic activity of Ni-Ce/Al2O3 catalysts decreased with an increasing value of the calcination temperature. At a reaction temperature of 500 oC, the highest productivity to ethene was observed for the Ni-Ce/Al2O3 catalyst calcined at 500 oC. Ni-Ce/Al2O3 catalysts calcined at 500-750 oC showed the same selectivity to ethene. The Ni-Ce/Al2O3 catalysts calcined at 900 and 1000 oCshowed a sharp decrease in the selectivity and the activity, which was probably associated with the formation of NiAl2O4 spinel.

Název v anglickém jazyce

Effect of Calcination Temperature on the Structure and Catalytic Performance of the Ni/Al2O3 and Ni-Ce/Al2O3 Catalysts in Oxidative Dehydrogenation of Ethane

Popis výsledku anglicky

We studied the effect of calcination temperature of Ni/Al2O3 and Ni-Ce/Al2O3 catalysts on the specific surface area, acidity, ratio of pore volume and specific surface area, reducibility reflecting the changing population of Ni(Td) and Ni(Oh) species, and activity/selectivity in oxidative dehydrogenation of ethane. It should be stressed that the role of Ce as a promoter on the catalytic activity of Ni-Ce/Al2O3 catalysts decreased with an increasing value of the calcination temperature. At a reaction temperature of 500 oC, the highest productivity to ethene was observed for the Ni-Ce/Al2O3 catalyst calcined at 500 oC. Ni-Ce/Al2O3 catalysts calcined at 500-750 oC showed the same selectivity to ethene. The Ni-Ce/Al2O3 catalysts calcined at 900 and 1000 oCshowed a sharp decrease in the selectivity and the activity, which was probably associated with the formation of NiAl2O4 spinel.

Druh

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

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/EE2.3.30.0058" target="_blank" >EE2.3.30.0058: Rozvoj kvalitních vědeckovýzkumných týmů na Univerzitě Pardubice</a><br>

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

Industrial &amp; Engineering Chemistry Reseach

ISSN

0888-5885

e-ISSN

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Svazek periodika

54

Číslo periodika v rámci svazku

51

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

12730-12740

Kód UT WoS článku

000367702200003

EID výsledku v databázi Scopus

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