Recent Novel Hybrid Pd–Fe3O4 Nanoparticles as Catalysts for Various C–C Coupling Reactions

Abstract

The use of nanostructure materials as heterogeneous catalysts in the synthesis of organic compounds have been receiving more attention in the rapid developing area of nanotechnology. In this review, we mainly focused on our own work on the synthesis of hybrid palladium–iron oxide nanoparticles. We discuss the synthesis of Pd–Fe3O4—both morphology-controlled synthesis of Pd–Fe3O4 and transition metal-loaded Pd–Fe3O4—as well as its application in various C–C coupling reactions. In the case of rose-like Pd–Fe3O4 hybrid nanoparticles, thermal decomposition can be used instead of oxidants or reductants, and morphology can be easily controlled. We have developed a method for the synthesis of nanoparticles that is facile and eco-friendly. The catalyst was recyclable for up to five continual cycles without significant loss of catalytic activity and may provide a great platform as a catalyst for other organic reactions in the near future.

Pd on poly(1-vinylimidazole) decorated magnetic S-doped grafitic carbon nitride: an efficient catalyst for catalytic reduction of organic dyes

“…Regarding SGCN/Fe 3 O 4 /PVIs/Pd nanocomposite XRD pattern, the peak at 2θ = 27.6° had a considerably reduced intensity and became broader, while the peak at 13.1° vanished, owing to the introduction of Fe 3 O 4 , Pd NPs or the interaction of the Pd NPs and SGCN in SGCN/Fe 3 O 4 /PVIs/Pd nanocomposite 33 , 38 . Eleven characteristic diffraction peaks of Fe 3 O 4 are found in XRD pattern of SGCN/Fe 3 O 4 /PVIs/Pd nanocomposite (denoted as black circles) 56 , suggesting that Fe 3 O 4 has been successfully immobilized on S-g-C 3 N 4 . The indexed (111) and (200) diffraction peaks at 39.66°, 46.46° and 82.08° are assigned to the Pd NPs (JCPDS No.…”

Synthetic Approaches to Colloidal Nanocrystal Heterostructures Based on Metal and Metal-Oxide Materials

“…Regular-sized Pt@Fe 2 O 3 CNHSs were synthesized according to one-pot, two-step synthesis schemes [ 96 , 105 , 106 ]. In alkyl carboxylic acid/amine mixtures, Pt or FePd CNCs were primarily nucleated in situ upon reduction of platinum acetylacetonate with alkyldiols, after which the preformed seeds reacted with the iron precursor allowing shell deposition [ 96 , 105 , 106 ] ( Figure 2 c).…”

“…Regular-sized Pt@Fe 2 O 3 CNHSs were synthesized according to one-pot, two-step synthesis schemes [ 96 , 105 , 106 ]. In alkyl carboxylic acid/amine mixtures, Pt or FePd CNCs were primarily nucleated in situ upon reduction of platinum acetylacetonate with alkyldiols, after which the preformed seeds reacted with the iron precursor allowing shell deposition [ 96 , 105 , 106 ] ( Figure 2 c). Unusual urchin-shaped FePd@Fe 3 O 4 nanocomposites, made of FePd nanoparticle clusters and rod-like Fe 3 O 4 spikes, were produced upon combining Fe(CO) 5 decomposition with palladium(II) acetylacetonate reduction under harsh conditions [ 107 ].…”

Non-Solvent Synthesis of a Robust Potassium-Doped PdCu-Pd-Cu@C Nanocatalyst for High Selectively Tandem Reactions

“…In recent decades, hybrid multimetallic nanoparticles (NPs) have been utilized as catalysts, due to their high catalytic performance and physico-chemical stability relative to comparable metal-based catalysts [1][2][3][4][5][6][7][8][9][10][11]. Pd and Cu nanomaterials have generated increased interest owing to the high catalytic activity (Pd) and synergistic impact (Cu) of each nanocatalyst component.…”