Ce and Ca/Nb doped Pd-mesocellular foam catalysts for gas-phase conversion of acetone to methyl isobutyl ketone

Kalina Grzelak; Rouzana Pulikkal Thumbayil; Søren Kegnæs; Maciej Trejda; Anders Riisager

doi:10.1016/j.micromeso.2021.111169

Ce and Ca/Nb doped Pd-mesocellular foam catalysts for gas-phase conversion of acetone to methyl isobutyl ketone

Kalina Grzelak, Rouzana Pulikkal Thumbayil, Søren Kegnæs, Maciej Trejda^*, Anders Riisager^*

^*Corresponding author for this work

Department of Chemistry

Adam Mickiewicz University in Poznań

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Abstract

Herein, we report a study on the design of new palladium containing catalysts based on Ce- and Ca–Nb-mesocellular foam (MCF) supports for gas-phase conversion of acetone to methyl isobutyl ketone (MIBK). A comparison to other catalyst materials already described in the literature shows that the role of material structure (mesostructured cellular foams, hydroxyapatite or mesoporous aluminophosphate), acid-base character of the support, state of palladium species and the support metal dopants play important roles for the catalytic performance in the conversion of acetone to MIBK. Thus, the new catalytic system Pd/Ce-MCF with 11% of conversion and 94% of selectivity to MIBK (250 °C) is demonstrated to be more attractive in term of stability for the reaction over time than previously described in literature for Pd/hydroxyapatite.

Original language	English
Article number	111169
Journal	Microporous and Mesoporous Materials
Volume	322
Number of pages	7
ISSN	1387-1811
DOIs	https://doi.org/10.1016/j.micromeso.2021.111169
Publication status	Published - 2021

Keywords

Methyl isobutyl ketone
Acetone condensation
2,5-Hexanedione
Metal doped mesocellular foams
Palladium nanoparticles

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title = "Ce and Ca/Nb doped Pd-mesocellular foam catalysts for gas-phase conversion of acetone to methyl isobutyl ketone",

abstract = "Herein, we report a study on the design of new palladium containing catalysts based on Ce- and Ca–Nb-mesocellular foam (MCF) supports for gas-phase conversion of acetone to methyl isobutyl ketone (MIBK). A comparison to other catalyst materials already described in the literature shows that the role of material structure (mesostructured cellular foams, hydroxyapatite or mesoporous aluminophosphate), acid-base character of the support, state of palladium species and the support metal dopants play important roles for the catalytic performance in the conversion of acetone to MIBK. Thus, the new catalytic system Pd/Ce-MCF with 11% of conversion and 94% of selectivity to MIBK (250 °C) is demonstrated to be more attractive in term of stability for the reaction over time than previously described in literature for Pd/hydroxyapatite.",

keywords = "Methyl isobutyl ketone, Acetone condensation, 2,5-Hexanedione, Metal doped mesocellular foams, Palladium nanoparticles",

author = "Kalina Grzelak and Thumbayil, {Rouzana Pulikkal} and S{\o}ren Kegn{\ae}s and Maciej Trejda and Anders Riisager",

year = "2021",

doi = "10.1016/j.micromeso.2021.111169",

language = "English",

volume = "322",

journal = "Microporous and Mesoporous Materials",

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TY - JOUR

T1 - Ce and Ca/Nb doped Pd-mesocellular foam catalysts for gas-phase conversion of acetone to methyl isobutyl ketone

AU - Grzelak, Kalina

AU - Thumbayil, Rouzana Pulikkal

AU - Kegnæs, Søren

AU - Trejda, Maciej

AU - Riisager, Anders

PY - 2021

Y1 - 2021

N2 - Herein, we report a study on the design of new palladium containing catalysts based on Ce- and Ca–Nb-mesocellular foam (MCF) supports for gas-phase conversion of acetone to methyl isobutyl ketone (MIBK). A comparison to other catalyst materials already described in the literature shows that the role of material structure (mesostructured cellular foams, hydroxyapatite or mesoporous aluminophosphate), acid-base character of the support, state of palladium species and the support metal dopants play important roles for the catalytic performance in the conversion of acetone to MIBK. Thus, the new catalytic system Pd/Ce-MCF with 11% of conversion and 94% of selectivity to MIBK (250 °C) is demonstrated to be more attractive in term of stability for the reaction over time than previously described in literature for Pd/hydroxyapatite.

AB - Herein, we report a study on the design of new palladium containing catalysts based on Ce- and Ca–Nb-mesocellular foam (MCF) supports for gas-phase conversion of acetone to methyl isobutyl ketone (MIBK). A comparison to other catalyst materials already described in the literature shows that the role of material structure (mesostructured cellular foams, hydroxyapatite or mesoporous aluminophosphate), acid-base character of the support, state of palladium species and the support metal dopants play important roles for the catalytic performance in the conversion of acetone to MIBK. Thus, the new catalytic system Pd/Ce-MCF with 11% of conversion and 94% of selectivity to MIBK (250 °C) is demonstrated to be more attractive in term of stability for the reaction over time than previously described in literature for Pd/hydroxyapatite.

KW - Methyl isobutyl ketone

KW - Acetone condensation

KW - 2,5-Hexanedione

KW - Metal doped mesocellular foams

KW - Palladium nanoparticles

U2 - 10.1016/j.micromeso.2021.111169

DO - 10.1016/j.micromeso.2021.111169

M3 - Journal article

SN - 1387-1811

VL - 322

JO - Microporous and Mesoporous Materials

JF - Microporous and Mesoporous Materials

M1 - 111169

ER -

Ce and Ca/Nb doped Pd-mesocellular foam catalysts for gas-phase conversion of acetone to methyl isobutyl ketone

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Keywords

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