Palladium Nanoparticles in Glycerol: A Versatile Catalytic System for CX Bond Formation and Hydrogenation Processes

Chahdoura, Faouzi; Pradel, Christian; Gómez, Montserrat

doi:10.1002/adsc.201300753

Cited by 61 publications

(63 citation statements)

References 54 publications

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“…5%), in addition to the corresponding ethyl derivatives 5 and 6. A similar catalytic trend has been reported for achiral phosphines [43]. Unfortunately, RuNPs were not active in the hydrogenation of the carbonyl group of acetophenone (under 40 bar H 2 at 50 • C overnight).…”

Section: Hydrogenation Reactivitysupporting

confidence: 78%

P-Stereogenic Phosphines for the Stabilisation of Metal Nanoparticles. A Surface State Study

et al. 2016

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Palladium and ruthenium nanoparticles have been prepared following the organometallic precursor decomposition methodology, under dihydrogen pressure and in the presence of borane protected P-stereogenic phosphines. NMR (Nuclear Magnetic Resonance) monitoring of the corresponding syntheses has permitted to determine the optimal metal/ligand ratio for leading to small and well-dispersed nanoparticles. Exchange ligand reactions of the as-prepared materials have proven the strong interaction of the phosphines with the metal surface; only oxidative treatment using hydrogen peroxide could release the phosphine-based stabiliser from the metal surface. Pd and Ru nanoparticles have been evaluated in hydrogenation reactions, confirming the robustness of the stabilisers, which selectively permitted the hydrogenation of exocyclic C=C bonds, preventing the coordination of the aromatic rings and as a result, their hydrogenation.

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Section: Hydrogenation Reactivitysupporting

confidence: 78%

P-Stereogenic Phosphines for the Stabilisation of Metal Nanoparticles. A Surface State Study

et al. 2016

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“…73 Because of its nature, availability, and physico‐chemical properties, glycerol seems an appropriate choice. In the last few years, we have been interested in the synthesis of well‐defined PdNPs74 and Cu 2 ONPs75 in glycerol with the aim of applying them in different kinds of transformations (CC and Cheteroatom bond formation processes, hydrogenations, cycloadditions) and also in “one‐pot” sequential and tandem transformations, using the same catalytic precursor for multi‐step syntheses 74. 76…”

Section: Metal Nanoparticlesmentioning

confidence: 99%

“…The Pd‐based nanosystem was active for both CX (X=C, N, P) bond formation processes and hydrogenations of CC bonds of a large variety of substrates (Scheme ). This versatility permitted the employment of this type of catalyst in CC coupling followed by hydrogenation sequential processes 74. The catalyst could be recycled more than ten times without loss of activity, with negligible palladium content on the organic product (not detected by ICP‐MS).…”

Section: Metal Nanoparticlesmentioning

confidence: 99%

Glycerol as Suitable Solvent for the Synthesis of Metallic Species and Catalysis

Chahdoura¹,

Favier²,

Gómez³

2014

Chemistry A European J

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This Minireview considers the foremost reported works involving glycerol as a solvent in the synthesis of organometallic complexes and metallic nanoparticles. This analysis highlights their catalytic applications. A special emphasis is devoted to the ability of glycerol to immobilize nanometric species, which, in turn, enables an efficient recycling of the catalytic phase to give metal-free organic products.

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“…According to the pure TNT UV-Vis spectra, there is no remarkable absorption after 280 nm. [60][61][62][63] When reductant BH 4 À is added, complex products…”

Section: Catalytic Reduction Of Tntmentioning

confidence: 99%

Reusable and Flexible Heterogeneous Catalyst for Reduction of TNT by Pd Nanocube Decorated ZnO Nanolayers onto Electrospun Polymeric Nanofibers

Arslan

Eren

Bıyıklı³

et al. 2017

ChemistrySelect

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An effective method for the fabrication of well designed nanocomposite for the catalytic reduction of 2,4,6-trinitrotoluene (TNT) was developed. Here, cubic palladium (Pd) nanoparticles were utilized for enhancing the interface properties, attachment quality, catalytic yield and stability after the catalysis reactions. Ligand controlled facet growth by the Branions during thermal decomposition of the palladium-precursor resulted with cubic shaped average~13 nm palladium nanocubes (Pd NC). The anisotropic Pd NC were utilized to decorate the surface of the zinc oxide (ZnO) nanolayers deposited by atomic layer deposition (ALD) technique on the electrospun polyacrylonitrile (PAN) nanofibers. Due to the polymeric nature of the electrospun PAN nanofibers, Pd NC decorated nanoweb is highly flexible and has a high surface area. For the sustainable Pd NC decoration on the ZnO surfaces coated on PAN nanofibers, anchor points were formed by the functional thiol groups which can facilitate the Pd NC attachment and stability on the ZnO surface. The -OH and alkyl thiol groups obtained via sol-gel reactions positioned on the ZnO layer providing a better interface between ZnO and Pd NC which cannot be obtained by pristine PAN nanofibers. Additionally, due to the increased surface interaction, geometrical positioning on fibers for a better intermediate complex formation and stability via soft-soft interaction, Pd NC decorated flexible polymeric electrospun nanoweb provided enhanced catalytic reduction of TNT in aqueous medium.

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Palladium Nanoparticles in Glycerol: A Versatile Catalytic System for CX Bond Formation and Hydrogenation Processes

Cited by 61 publications

References 54 publications

P-Stereogenic Phosphines for the Stabilisation of Metal Nanoparticles. A Surface State Study

P-Stereogenic Phosphines for the Stabilisation of Metal Nanoparticles. A Surface State Study

Glycerol as Suitable Solvent for the Synthesis of Metallic Species and Catalysis

Reusable and Flexible Heterogeneous Catalyst for Reduction of TNT by Pd Nanocube Decorated ZnO Nanolayers onto Electrospun Polymeric Nanofibers

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