Iron-modified Cu/y-alumina catalyst for the selective hydrogenolysis of glycerol

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F24%3A43928980" target="_blank" >RIV/60461373:22320/24:43928980 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/abs/pii/S0926860X24002941" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S0926860X24002941</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apcata.2024.119849" target="_blank" >10.1016/j.apcata.2024.119849</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Iron-modified Cu/y-alumina catalyst for the selective hydrogenolysis of glycerol

Popis výsledku v původním jazyce

This study introduces a novel Cu-based catalyst for the selective hydrogenolysis of glycerol to 1,2-propanediol, synthesized by impregnating mesoporous γ-alumina with Cu and Fe. Characterization was performed using various analytical methods, and tests were conducted in a tubular continuous reactor under specific conditions. Iron was found to have multiple modifying effects, influencing the modification of Cu clusters on the catalyst surface and the radial Cu concentration profile inside the particles. A low Fe/Cu ratio resulted in an almost egg-shell Cu profile, whereas higher Fe levels produced a more uniform distribution. Interestingly, minor Fe additions led to larger Cu clusters, while higher amounts resulted in smaller clusters and decreased glycerol conversion. The effect of Fe on Cu clusters size, acid sites concentration, and Cu radial profile, as well as the influence of these parameters on the glycerol conversion and selectivity towards 1,2-PD are discussed in this study.

Název v anglickém jazyce

Iron-modified Cu/y-alumina catalyst for the selective hydrogenolysis of glycerol

Popis výsledku anglicky

This study introduces a novel Cu-based catalyst for the selective hydrogenolysis of glycerol to 1,2-propanediol, synthesized by impregnating mesoporous γ-alumina with Cu and Fe. Characterization was performed using various analytical methods, and tests were conducted in a tubular continuous reactor under specific conditions. Iron was found to have multiple modifying effects, influencing the modification of Cu clusters on the catalyst surface and the radial Cu concentration profile inside the particles. A low Fe/Cu ratio resulted in an almost egg-shell Cu profile, whereas higher Fe levels produced a more uniform distribution. Interestingly, minor Fe additions led to larger Cu clusters, while higher amounts resulted in smaller clusters and decreased glycerol conversion. The effect of Fe on Cu clusters size, acid sites concentration, and Cu radial profile, as well as the influence of these parameters on the glycerol conversion and selectivity towards 1,2-PD are discussed in this study.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10406 - Analytical chemistry

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

APPLIED CATALYSIS A-GENERAL

ISSN

0926-860X

e-ISSN

1873-3875

Svazek periodika

683

Číslo periodika v rámci svazku

5 August 2024

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

14

Strana od-do

119849

Kód UT WoS článku

001259119800001

EID výsledku v databázi Scopus

2-s2.0-85196206986