Efficient non-noble Ni–Cu based catalysts ...
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Article dans une revue scientifique: Article original
DOI :
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Title :
Efficient non-noble Ni–Cu based catalysts for the valorization of palmitic acid through a decarboxylation reaction
Author(s) :
Ferraz, Camila P. [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Kiméné, Anouchka [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Silva, Karen [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Heyte Dyshlovenko, Svetlana [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Durlin, Claire [Auteur]
Simon, Olivier [Auteur]
Dumeignil, Franck [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
PAUL, Sébastien [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Wojcieszak, Robert [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Kiméné, Anouchka [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Silva, Karen [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Heyte Dyshlovenko, Svetlana [Auteur]

Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Durlin, Claire [Auteur]
Simon, Olivier [Auteur]
Dumeignil, Franck [Auteur]

Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
PAUL, Sébastien [Auteur]

Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Wojcieszak, Robert [Auteur]

Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Journal title :
Catalysis Science & Technology
Abbreviated title :
Catal. Sci. Technol.
Volume number :
11
Pages :
3025-3038
Publisher :
Royal Society of Chemistry (RSC)
Publication date :
2021
ISSN :
2044-4753, 2044-4761
English keyword(s) :
Decarboxylation
palmitic acid
n-paraffines
pentadecane
Ni-Cu catalyst
palmitic acid
n-paraffines
pentadecane
Ni-Cu catalyst
HAL domain(s) :
Chimie/Catalyse
Chimie/Chimie organique
Chimie/Chimie organique
English abstract : [en]
The production of n-paraffins from biomass derivatives appears as an alternative to petroleum-derived compounds for the production of fuels, energy, and chemicals. Deoxygenation reactions, especially decarboxylation (DCX), ...
Show more >The production of n-paraffins from biomass derivatives appears as an alternative to petroleum-derived compounds for the production of fuels, energy, and chemicals. Deoxygenation reactions, especially decarboxylation (DCX), are economically viable and are generally carried out with noble metal catalysts (Pt and Pd). Taking into account the cost and deactivation issues related to these catalysts, the development of non-noble metal catalysts is highly desirable yet challenging. For this purpose, non-noble monometallic catalysts (Ni, Fe, Cu, and Ag) and Ni-based bimetallic catalysts were studied for the DCX of palmitic acid (PA). Surprisingly, Ni–Cu/C systems were by far the most advantageous; the presence of Cu prevents the deactivation of the catalyst, decreases the reduction temperature, and significantly improves the yield of n-pentadecane (n-PD). The as-prepared catalysts formed a Ni–Cu alloy, but Cu- and Ni-rich phases were formed upon annealing. The higher Ni content in the 10% Ni 10% Cu/C catalyst resulted in a higher proportion of metallic Ni on the surface and a higher charge transfer from Ni to Cu. Thus, the best catalytic performance with full PA conversion and 95% selectivity to n-PD in 6 h was obtained at 320 °C, using 10 vol% of H2 in N2 and an operating pressure of 40 bar. Furthermore, this catalyst exhibited excellent recyclability under similar reaction conditions. Mechanistic studies confirmed the high catalyst selectivity, and excellent performance was observed for the DCX of stearic acid. This highlights the potential of this Ni–Cu catalyst for DCX of other fatty acids.Show less >
Show more >The production of n-paraffins from biomass derivatives appears as an alternative to petroleum-derived compounds for the production of fuels, energy, and chemicals. Deoxygenation reactions, especially decarboxylation (DCX), are economically viable and are generally carried out with noble metal catalysts (Pt and Pd). Taking into account the cost and deactivation issues related to these catalysts, the development of non-noble metal catalysts is highly desirable yet challenging. For this purpose, non-noble monometallic catalysts (Ni, Fe, Cu, and Ag) and Ni-based bimetallic catalysts were studied for the DCX of palmitic acid (PA). Surprisingly, Ni–Cu/C systems were by far the most advantageous; the presence of Cu prevents the deactivation of the catalyst, decreases the reduction temperature, and significantly improves the yield of n-pentadecane (n-PD). The as-prepared catalysts formed a Ni–Cu alloy, but Cu- and Ni-rich phases were formed upon annealing. The higher Ni content in the 10% Ni 10% Cu/C catalyst resulted in a higher proportion of metallic Ni on the surface and a higher charge transfer from Ni to Cu. Thus, the best catalytic performance with full PA conversion and 95% selectivity to n-PD in 6 h was obtained at 320 °C, using 10 vol% of H2 in N2 and an operating pressure of 40 bar. Furthermore, this catalyst exhibited excellent recyclability under similar reaction conditions. Mechanistic studies confirmed the high catalyst selectivity, and excellent performance was observed for the DCX of stearic acid. This highlights the potential of this Ni–Cu catalyst for DCX of other fatty acids.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
ANR Project :
Administrative institution(s) :
CNRS
Centrale Lille
ENSCL
Univ. Artois
Université de Lille
Centrale Lille
ENSCL
Univ. Artois
Université de Lille
Collections :
Research team(s) :
Valorisation des alcanes et de la biomasse (VAALBIO)
Submission date :
2022-03-24T09:02:33Z
2023-05-03T08:57:44Z
2023-05-03T08:57:44Z
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