Modified hydrotalcites as precursors for catalysts effective in the hydrogenolysis of glycerol to 1,2-propanediol

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62243136%3A_____%2F17%3AN0000005" target="_blank" >RIV/62243136:_____/17:N0000005 - isvavai.cz</a>

Výsledek na webu

<a href="http://link.springer.com/article/10.1007/s11144-017-1239-2" target="_blank" >http://link.springer.com/article/10.1007/s11144-017-1239-2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11144-017-1239-2" target="_blank" >10.1007/s11144-017-1239-2</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Modified hydrotalcites as precursors for catalysts effective in the hydrogenolysis of glycerol to 1,2-propanediol

Popis výsledku v původním jazyce

A series of hydrotalcite-like materials containing Al, Cu and one other bivalent metal, selected from the group Ni, Fe, Co and Zn, was prepared in the frame of this study. These hydrotalcite-like structures were used as precursors of the catalysts for the hydrogenolysis of glycerol. The hydrotalcites were converted to active forms of catalysts by calcination at programmed temperature, increasing with the speed of 2 °C/min, up to 350 °C and reduction by hydrogen at 350 °C and 7 MPa. The catalysts were characterized by XRD, TGA, TPR, TPD, HRTEM, Hg porosity and N2 physisorption. The catalyst containing Zn exhibited highest activity and selectivity to 1,2-propanediol in the hydrogenolysis of glycerol despite the fact that it had lowest internal surface area from all the catalysts studied. Its activity was attributed to its specific pore volume distribution with highest fraction of wider macropores in the range between 1 and 10 µm, remarkably distinguishing this catalyst from all the other catalysts studied.

Název v anglickém jazyce

Modified hydrotalcites as precursors for catalysts effective in the hydrogenolysis of glycerol to 1,2-propanediol

Popis výsledku anglicky

A series of hydrotalcite-like materials containing Al, Cu and one other bivalent metal, selected from the group Ni, Fe, Co and Zn, was prepared in the frame of this study. These hydrotalcite-like structures were used as precursors of the catalysts for the hydrogenolysis of glycerol. The hydrotalcites were converted to active forms of catalysts by calcination at programmed temperature, increasing with the speed of 2 °C/min, up to 350 °C and reduction by hydrogen at 350 °C and 7 MPa. The catalysts were characterized by XRD, TGA, TPR, TPD, HRTEM, Hg porosity and N2 physisorption. The catalyst containing Zn exhibited highest activity and selectivity to 1,2-propanediol in the hydrogenolysis of glycerol despite the fact that it had lowest internal surface area from all the catalysts studied. Its activity was attributed to its specific pore volume distribution with highest fraction of wider macropores in the range between 1 and 10 µm, remarkably distinguishing this catalyst from all the other catalysts studied.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

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OECD FORD obor

20402 - Chemical process engineering

Projekt

<a href="/cs/project/GA15-21817S" target="_blank" >GA15-21817S: Analýza vztahu mezi strukturou/basicitou Mg/Al, Ca/Al a Zn/Al směsných oxidů a jejich aktivitou v aldol kondenzaci a transesterifikaci</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Reaction Kinetics Mechanism and Catalysis

ISSN

1878-5190

e-ISSN

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Svazek periodika

122

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

14

Strana od-do

803 - 817

Kód UT WoS článku

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EID výsledku v databázi Scopus

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