INFIQC 05475
INSTITUTO DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Unidad Ejecutora - UE
artículos
Título:
Thermodynamic considerations and computer simulations on the spontaneous formation of core-shell nanoparticles under electrochemical conditions
Autor/es:
O. A. OVIEDO; E. P. M. LEIVA; M. M. MARISCAL
Revista:
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Editorial:
Royal Society of Chemistry
Referencias:
Año: 2008 vol. 10 p. 3561 - 3568
ISSN:
1463-9076
Resumen:
We report on thermodynamic modeling and computer simulations on the electrochemicalgeneration of metallic and bimetallic nanoparticles (NPs) by means of quenched moleculardynamics (QMD). The present results suggest that the spontaneous formation of core-shell NPsdepends on several factors, i.e. size and shape of the core, chemical composition of the system,and under-/oversaturation conditions. Homo- and heteroatomic prototypical systems wereconsidered. The former systems were Au and Pt. The latter were Ag(core)/Au(shell),Pt(core)/Au(shell), Au(core)/Ag(shell) and Au(core)/Pt(shell).
