Generation and properties of bimetallic nanoparticles

M. M. MARISCAL, S. A. PAZ, O. A. OVIEDO, E. P. M. LEIVA.

International Workshop on Computational NanoAlloys

Proceediing

Año: 2008 p. 1 - 1

font face="Times-Roman" size="2"> 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, chem