Graphene as a Suitable Support for Nickel Nanoparticles Functionalized with NHC Ligands in Dehydrogenation of Alcohols
Medina-Vargas, Judith ; Mollar-Cuni, Andrés ; Martín, Santiago (Universidad de Zaragoza) ; Sorribes, Iván ; Mata, Jose A.
Resumen: In this paper, we describe a bottom‐up synthesis of nickel nanoparticles (NiNPs) functionalized with N‐heterocyclic carbene ligands and immobilized onto reduce graphene oxide (rGO). This tailored synthetic approach provides insights into the physical and chemical factors influencing NiNP formation and properties. The hybrid material (metal nanoparticles + organic ligand + graphene) is prepared starting from a well‐defined nickel complex that is decomposed in a controlled manner providing ligand‐decorated metal nanoparticles under mild conditions. The resulting NiNPs are spherical, with a small average size distribution (3.7 ± 0.9 nm). This hybrid material (NiNPs/NHC@rGO) is an efficient catalytic material for the dehydrogenation of alcohols to produce carbonyls with the concomitant release of molecular hydrogen. We explore its catalytic properties, substrate scope, and recyclability. Furthermore, X‐ray photoelectron spectroscopy analysis reveals the material's evolution over multiple catalytic cycles. The reusability of NiNPs on graphene represents a significant advancement in the design of nickel‐based catalytic materials.
Idioma: Inglés
DOI: 10.1002/cctc.202500490
Año: 2025
Publicado en: ChemCatChem (2025), e202500490 [11 pp.]
ISSN: 1867-3880
Financiación: info:eu-repo/grantAgreement/ES/AEI/PID2021-126071OB-C22
Financiación: info:eu-repo/grantAgreement/ES/DGA/E31-23R
Financiación: info:eu-repo/grantAgreement/ES/MICINN/CEX2023-001286-S
Tipo y forma: Article (Published version)
Área (Departamento): Área Química Física (Dpto. Química Física)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes.
Exportado de SIDERAL (2025-10-17-14:18:58)
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Idioma: Inglés
DOI: 10.1002/cctc.202500490
Año: 2025
Publicado en: ChemCatChem (2025), e202500490 [11 pp.]
ISSN: 1867-3880
Financiación: info:eu-repo/grantAgreement/ES/AEI/PID2021-126071OB-C22
Financiación: info:eu-repo/grantAgreement/ES/DGA/E31-23R
Financiación: info:eu-repo/grantAgreement/ES/MICINN/CEX2023-001286-S
Tipo y forma: Article (Published version)
Área (Departamento): Área Química Física (Dpto. Química Física)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. Exportado de SIDERAL (2025-10-17-14:18:58)
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Record created 2025-05-30, last modified 2025-10-17