PAZ SERGIO ALEXIS
Congresos y reuniones científicas
Título:
Generation and properties of bimetallic nanoparticles
Autor/es:
M. M. MARISCAL; S. A. PAZ; O. OVIEDO; E. P. M. LEIVA
Lugar:
Pisa
Reunión:
Workshop; International Workshop on Computational NanoAlloys; 2008
Resumen:
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.
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.
