Artículo
Nanoalloying in real time: A high resolution STEM and computer simulation study
Mariscal, Marcelo
; Mayoral, Alba; Olmos Asar, Jimena Anahí
; Magen, César; Mejia Rosales, Sergio Javier; Pérez Tijerina, Eduardo; José Yacamán, Miguel
Fecha de publicación:
28/12/2011
Editorial:
Royal Society of Chemistry
Revista:
Nanoscale
ISSN:
2040-3364
e-ISSN:
2040-3372
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Bimetallic nanoparticles constitute a promising type of catalysts, mainly because their physical and chemical properties may be tuned by varying their chemical composition, atomic ordering, and size. Today, the design of novel nanocatalysts is possible through a combination of virtual lab simulations on massive parallel computing and modern electron microscopy with picometre resolution on one hand, and the capability of chemical analysis at the atomic scale on the other. In this work we show how the combination of theoretical calculations and characterization can solve some of the paradoxes reported about nanocatalysts: Au-Pd bimetallic nanoparticles. In particular, we demonstrate the key role played by adsorbates, such as carbon monoxide (CO), on the structure of nanoalloys. Our results imply that surface condition of nanoparticles during synthesis is a parameter of paramount importance.
Palabras clave:
Nanoparticles
,
Nanoalloys
,
Stem
,
Simulations
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(INFIQC)
Articulos de INST.DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Articulos de INST.DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Citación
Mariscal, Marcelo; Mayoral, Alba; Olmos Asar, Jimena Anahí; Magen, César; Mejia Rosales, Sergio Javier; et al.; Nanoalloying in real time: A high resolution STEM and computer simulation study; Royal Society of Chemistry; Nanoscale; 3; 12; 28-12-2011; 5013-5019
Compartir
Altmétricas