Size-controlled synthesis of Pd nanoparticles from  -diketonato complexes of palladium

Abstract

Palladium nanoparticles with low polydispersity were fabricated by thermally-induced reduction of Pd(fod)2 in o-xylene in the presence of tetraalkylammonium salts as the surfactants. The particle size, ranging from 6.2 to 18.5 nm, can be controlled by variation of the surfactant, and the concentrations of precursor and surfactant. Self-assembly of the Pd nanoparticles in closest packing was observed in this study.

Novel platinum–palladium bimetallic nanoparticles synthesized by Dioscorea bulbifera: anticancer and antioxidant activities

“…16 PdNPs are synthesized by various approaches like electrochemical deposition, sonochemical decomposition, and reduction of Pd salts by a variety of reducing agents that mostly involve toxic and hazardous chemicals. 17 There are only preliminary reports on PdNPs to induce disturbances in cell cycle arrest. 18 Till date the anticancer activity of bimetallic platinum-palladium nanoparticles (Pt-PdNPs) has never been tested.…”

Molecular Palladium Precursors for Pd0 Nanoparticle Preparation by Microwave Irradiation: Synthesis, Structural Characterization and Catalytic Activity

“…[4,5] So far, many methods have been reported to prepare monodispersed Pd nanoparticles, which include chemical reduction of palladium salts or complexes [6] by reaction with molecular hydrogen, metal hydrides or by means of the polyol process, [5] or sonoelectrochemical methods [7] whereby different surfactants, polymers or ionic liquids have been used to prevent agglomeration and to impose a chemical control over the morphological features of the particles. [8] Microwave irradiation of ionic or thermally labile precursors offers a facile, fast and green pathway to synthesize metal and metal oxide nanoparticles as the reaction durations are drastically reduced due to instantaneous heating of the reaction medium and formation of hot spots in the reaction mixture, which can be tuned by choosing solvents with desired polarity and dielectric properties. [9] To this end, a number of ionic precursors, such as PdCl 4 2-, PdCl 2 Scheme 1.…”

Multiphasic Heterogeneous Catalysis Mediated by Catalyst‐Philic Liquid Phases

“…Metal nanoparticles, and in particular Pd-nanoparticles (also called 'Pd-colloids'), are stabilized by the presence-among others-of ammonium salts, [39][40][41][42][43] and surfactants, 44 by PEGs, 45 polysiloxane, 46 and by organic thiol monolayers. 47 The highly polar ethylene glycol was shown to be a catalystphilic phase earlier for SAPC.…”