Low-impact synthesis of mesostructured acidic catalysts: toward the efficient conversion of crude glycerol

Amelie Maertens; Alvise Vivian; Lucas Fusaro; Alexandre Felten; Pierre Louette; Marco Armandi; Sonia Fiorilli; Carmela APRILE

doi:10.1039/d2se00566b

Low-impact synthesis of mesostructured acidic catalysts: toward the efficient conversion of crude glycerol

Titre traduit de la contribution: Synthèse à faible impact environemental de catalyseurs acides mésoporeux: route vers la conversion du glycerol brut

Amelie Maertens, Alvise Vivian, Lucas Fusaro, Alexandre Felten, Pierre Louette, Marco Armandi, Sonia Fiorilli, Carmela APRILE

Résultats de recherche: Contribution à un journal/une revue › Article › Revue par des pairs

Résumé

Une série de nanosphères poreuses acides avec une taille de particules controlée a été préparée grâce à une synthèse rapide (30min), directe et durable (température ambiante). La taille des particules a été réduite à 25nm et plusieurs Si/Ga ratios (dans la gamme 35 à 137) ont été investigués. Les matériaux ont été testés comme catalyseurs pour la conversion du glycerol en solketal. Le ratio le plus favorable correspond à un Si/Ga ratio de 74. La stabilité du solide a été testée sur plusieurs cycles et il présentait un E-factor particulièrement faible et des propriétés catalytiques significativement améliorée par rapport à d'autres matériaux dont d'autres gallosilicates. Il était encore très actif en présence des impurités principales du glycerol brut (eau, methanol). L'impact de l'eau a pû être réduit grâce à la functionalisation de la surface du catalyseur par 5 mol.% F.

Titre traduit de la contribution	Synthèse à faible impact environemental de catalyseurs acides mésoporeux: route vers la conversion du glycerol brut
langue originale	Anglais
Numéro d'article	10.1039/D2SE00566B
Pages (de - à)	3818-3829
Nombre de pages	12
journal	Sustainable Energy and Fuel
Volume	6
Numéro de publication	16
Les DOIs	https://doi.org/10.1039/d2se00566b
Etat de la publication	Publié - 4 juil. 2022

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Physico-chimie et caractérisation (PC2)
Johan Wouters (!!Manager) & Carmela Aprile (!!Manager)
Plateforme technologique Caracterisation physico-chimiques
Equipement/installations: Plateforme technolgique
Synthèse, Irradiation et Analyse de Matériaux (SIAM) (2016 - ...)
Pierre Louette (!!Manager), Julien Colaux (!!Manager), Alexandre Felten (!!Manager), Tijani Tabarrant (!!Operator), Frederic COME (!!Operator) & Paul-Louis Debarsy (!!Manager)
Plateforme technologique Synthese, irradiation et analyse des materiaux
Equipement/installations: Plateforme technolgique

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title = "Low-impact synthesis of mesostructured acidic catalysts: toward the efficient conversion of crude glycerol",

abstract = "A series of acidic porous nanospheres with highly controllable particle size were prepared through a rapid (30 min), straightforward (one pot) and sustainable (room temperature) synthetic procedure. The particle size was reduced down to 25 nm and various Si/Ga ratios (in the range of 35 to 137) were investigated. The materials were tested as catalysts for the conversion of glycerol to solketal. The most favorable Si/Ga ratio corresponds to 74 and this solid was reusable over multiple cycles. Importantly, the best catalyst displayed a particularly low E-factor and outstanding catalytic activity compared to previously reported materials including other gallosilicates. The solid was still highly active in the presence of reaction mixtures simulating the crude glycerol composition. The impact of water on the catalytic activity was further mitigated through the functionalization of the catalyst surface with 5 mol% fluorine moieties, leading to a significant increase in the yield of solketal.",

keywords = "silica nanospheres, heterogeneous catalysis, acid catalysis, glycerol conversion",

author = "Amelie Maertens and Alvise Vivian and Lucas Fusaro and Alexandre Felten and Pierre Louette and Marco Armandi and Sonia Fiorilli and Carmela APRILE",

note = "Funding Information: The present work was supported by the Fond National de la Recherche Scientifique-FNRS through the FRIA grants of Am{\'e}lie Maertens and the research project grant G 4/1/6-GEQ/CDB. This research used the resources of the “Plateforme Technologique Physico-Chemical Characterization”-PC2, the platform “Morphology and Imaging”-MORPH-IM and the platform “Synthesis, Irradiation and Analysis of Materials”-SIAM located at the University of Namur. Publisher Copyright: {\textcopyright} 2022 The Royal Society of Chemistry",

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doi = "10.1039/d2se00566b",

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AU - Maertens, Amelie

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AU - Louette, Pierre

AU - Armandi, Marco

AU - Fiorilli, Sonia

AU - APRILE, Carmela

N1 - Funding Information: The present work was supported by the Fond National de la Recherche Scientifique-FNRS through the FRIA grants of Amélie Maertens and the research project grant G 4/1/6-GEQ/CDB. This research used the resources of the “Plateforme Technologique Physico-Chemical Characterization”-PC2, the platform “Morphology and Imaging”-MORPH-IM and the platform “Synthesis, Irradiation and Analysis of Materials”-SIAM located at the University of Namur. Publisher Copyright: © 2022 The Royal Society of Chemistry

PY - 2022/7/4

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N2 - A series of acidic porous nanospheres with highly controllable particle size were prepared through a rapid (30 min), straightforward (one pot) and sustainable (room temperature) synthetic procedure. The particle size was reduced down to 25 nm and various Si/Ga ratios (in the range of 35 to 137) were investigated. The materials were tested as catalysts for the conversion of glycerol to solketal. The most favorable Si/Ga ratio corresponds to 74 and this solid was reusable over multiple cycles. Importantly, the best catalyst displayed a particularly low E-factor and outstanding catalytic activity compared to previously reported materials including other gallosilicates. The solid was still highly active in the presence of reaction mixtures simulating the crude glycerol composition. The impact of water on the catalytic activity was further mitigated through the functionalization of the catalyst surface with 5 mol% fluorine moieties, leading to a significant increase in the yield of solketal.

AB - A series of acidic porous nanospheres with highly controllable particle size were prepared through a rapid (30 min), straightforward (one pot) and sustainable (room temperature) synthetic procedure. The particle size was reduced down to 25 nm and various Si/Ga ratios (in the range of 35 to 137) were investigated. The materials were tested as catalysts for the conversion of glycerol to solketal. The most favorable Si/Ga ratio corresponds to 74 and this solid was reusable over multiple cycles. Importantly, the best catalyst displayed a particularly low E-factor and outstanding catalytic activity compared to previously reported materials including other gallosilicates. The solid was still highly active in the presence of reaction mixtures simulating the crude glycerol composition. The impact of water on the catalytic activity was further mitigated through the functionalization of the catalyst surface with 5 mol% fluorine moieties, leading to a significant increase in the yield of solketal.

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Low-impact synthesis of mesostructured acidic catalysts: toward the efficient conversion of crude glycerol

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