Bimetallic Fe-Ni/SiO2 catalysts for furfural ...
Type de document :
Article dans une revue scientifique
URL permanente :
Titre :
Bimetallic Fe-Ni/SiO2 catalysts for furfural hydrogenation: Identification of the interplay between Fe and Ni during deposition-precipitation and thermal treatments
Auteur(s) :
Shi, Dichao [Auteur]
Yang, Qifeng [Auteur]
Peterson, Christi [Auteur]
Laboratoire de Réactivité de Surface [LRS]
Lamic-Humblot, Anne-Félicie [Auteur]
Girardon, Jean-Sébastien [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Griboval-Constant, Anne [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Stievano, Lorenzo [Auteur]
Sougrati, Moulay T. [Auteur]
Briois, Valérie [Auteur]
Bagot, Paul A.J. [Auteur]
Wojcieszak, Robert [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Paul, Sébastien [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Centrale Lille
Marceau, Eric [Auteur]
Laboratoire de Réactivité de Surface [LRS]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Yang, Qifeng [Auteur]
Peterson, Christi [Auteur]
Laboratoire de Réactivité de Surface [LRS]
Lamic-Humblot, Anne-Félicie [Auteur]
Girardon, Jean-Sébastien [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Griboval-Constant, Anne [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Stievano, Lorenzo [Auteur]
Sougrati, Moulay T. [Auteur]
Briois, Valérie [Auteur]
Bagot, Paul A.J. [Auteur]
Wojcieszak, Robert [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Paul, Sébastien [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Centrale Lille
Marceau, Eric [Auteur]
Laboratoire de Réactivité de Surface [LRS]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Titre de la revue :
Catalysis Today
Numéro :
334
Pagination :
162-172
Date de publication :
2019-08-15
Mot(s)-clé(s) en anglais :
Bimetallic catalysts
Furfural
X-ray absorption spectroscopy
Mössbauer spectroscopy
In situ measurements
Furfural
X-ray absorption spectroscopy
Mössbauer spectroscopy
In situ measurements
Discipline(s) HAL :
Chimie/Catalyse
Résumé en anglais : [en]
Supported Fe-Ni catalysts have been reported for their activity and selectivity in the hydrogenation of unsaturated organic molecules. However, the control of the size and composition of the bimetallic nanoparticles remains ...
Lire la suite >Supported Fe-Ni catalysts have been reported for their activity and selectivity in the hydrogenation of unsaturated organic molecules. However, the control of the size and composition of the bimetallic nanoparticles remains a bottleneck when oxide-supported catalysts are prepared by impregnation, and alternative procedures should be investigated. Starting with Ni(II) and Fe(II) sulfates as precursor salts, deposition-precipitation with urea (DPU) on SiO2 in an inert atmosphere initially leads to the formation of an ill-crystallized Fe-containing Ni(II) 1:1 phyllosilicate, which reduces under hydrogen at 700 °C into bimetallic fcc Fe-Ni nanoparticles of 5.4 nm in average. Compared with the composition of the DPU solution (50 Fe at %, 50 Ni at %), an excess of Ni is detected on the catalyst (38 Fe at %, 62 Ni at %), due to the preferential reaction of Ni2+ ions with silica. In situ X-ray absorption spectroscopy and 57Fe Mössbauer spectroscopy show that the reduction of Fe ions to the metallic state is triggered by the formation of reduced Ni centers above 350 °C, and, from then, proceeds progressively, resulting in an excess of Fe in the outer shells of the bimetallic particles. The composition of individual Fe-Ni particles evidences a standard deviation of 8%. The bimetallic Fe-Ni/SiO2 catalyst gives high yields in furfuryl alcohol in the hydrogenation of furfural, in contrast with an analog Ni/SiO2 catalyst that favours side-reactions of etherification, hydrogenolysis and hydrogenation of the furan ring.Lire moins >
Lire la suite >Supported Fe-Ni catalysts have been reported for their activity and selectivity in the hydrogenation of unsaturated organic molecules. However, the control of the size and composition of the bimetallic nanoparticles remains a bottleneck when oxide-supported catalysts are prepared by impregnation, and alternative procedures should be investigated. Starting with Ni(II) and Fe(II) sulfates as precursor salts, deposition-precipitation with urea (DPU) on SiO2 in an inert atmosphere initially leads to the formation of an ill-crystallized Fe-containing Ni(II) 1:1 phyllosilicate, which reduces under hydrogen at 700 °C into bimetallic fcc Fe-Ni nanoparticles of 5.4 nm in average. Compared with the composition of the DPU solution (50 Fe at %, 50 Ni at %), an excess of Ni is detected on the catalyst (38 Fe at %, 62 Ni at %), due to the preferential reaction of Ni2+ ions with silica. In situ X-ray absorption spectroscopy and 57Fe Mössbauer spectroscopy show that the reduction of Fe ions to the metallic state is triggered by the formation of reduced Ni centers above 350 °C, and, from then, proceeds progressively, resulting in an excess of Fe in the outer shells of the bimetallic particles. The composition of individual Fe-Ni particles evidences a standard deviation of 8%. The bimetallic Fe-Ni/SiO2 catalyst gives high yields in furfuryl alcohol in the hydrogenation of furfural, in contrast with an analog Ni/SiO2 catalyst that favours side-reactions of etherification, hydrogenolysis and hydrogenation of the furan ring.Lire moins >
Langue :
Anglais
Comité de lecture :
Oui
Audience :
Internationale
Vulgarisation :
Non
Établissement(s) :
ENSCL
Université de Lille
CNRS
Centrale Lille
Univ. Artois
Université de Lille
CNRS
Centrale Lille
Univ. Artois
Collections :
Équipe(s) de recherche :
Catalyse pour l’énergie (CATEN)
Matériaux pour la catalyse (MATCAT)
Valorisation des alcanes et de la biomasse (VAALBIO)
Matériaux pour la catalyse (MATCAT)
Valorisation des alcanes et de la biomasse (VAALBIO)
Date de dépôt :
2019-09-25T15:12:29Z
2019-10-07T15:47:02Z
2020-12-15T10:16:00Z
2020-12-16T09:07:42Z
2019-10-07T15:47:02Z
2020-12-15T10:16:00Z
2020-12-16T09:07:42Z
Fichiers
- Revisedmanuscript.pdf
- Version finale acceptée pour publication (postprint)
- Accès libre
- Accéder au document