In the present talk we will show two different approachs to study the generation of bimetallic

nanoparticles. Firstly, we report a dynamic method to generate bimetallic nanoparticles by collision of two

pure individual nanoparticles at different kinetic energies and impact parameters. Depending on such

conditions and the chemical nature of the metals involved, bimetallic nanoparticles of different structures

and chemical composition were obtained. Secondly, we report on thermodynamic modeling and computer

simulations on the electrochemical generation of metallic and bimetallic nanoparticles (NPs) by means of

quenched molecular dynamics (QMD). The results suggest that the spontaneous formation of core-shell

NPs depends on several factors, i.e. size and shape of the core, chemical composition of the system, and

under/over saturation conditions.