title: Precipitation of silver/palladium alloy platelets from homogeneous solutions.
abstract: Dispersed silver/palladium (Ag/Pd) nanoplatelets were prepared by delivering in parallel solutions of mixed metal nitrates and L-ascorbic acid into a nitric acid solution containing Arabic gum. The shape and size of bimetallic nanoparticles varied with the silver/palladium weight ratio and the concentration of nitric acid. The optimum conditions for platelets formation were a palladium content of ~2.0 wt.% and nitric acid concentrations above 1.0 mol dm(-3). The data presented show that both parameters play a critical role in the nucleation and growth of AgPd particles. A mechanism explaining the formation of the bimetallic nanoplatelets is proposed.
authors.affiliation: Center for Advanced Materials Processing, Potsdam, NY 13699-5814, USA.
authors.forename: Brendan P
authors.initials: BP
authors.lastname: Farrell
authors.forename: Lu
authors.initials: L
authors.lastname: Lu
authors.forename: Dan V
authors.initials: DV
authors.lastname: Goia