Artículo
Spontaneous formation of metallic nanostructures on highly oriented pyrolytic graphite (HOPG): an ab initio and experimental study
Juarez, Maria Fernanda
; Fuentes, Ana Silvina; Soldano, Germán
; Avalle, Lucia Bernardita
; Santos, Elizabeth del Carmen
Fecha de publicación:
05/2014
Editorial:
Royal Society of Chemistry
Revista:
Faraday Discussions
ISSN:
1364-5498
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We have investigated the decoration of step-edges of HOPG by Ag, Au and Pt using experimental and theoretical approaches. Metallic nanowires can be formed on bare or functionalized step-edges. Energy dispersion analysis indicates the presence of oxygenated groups. The experiments showed that nanowires can be obtained with the three metals along the step-edges, but the shapes and morphologies are very different. We have found that the interaction between the metal wires and the carbon follows the sequence: Pt > Au > Ag. The electronic redistribution between the atoms participating in the bond between the metallic nanowire and the step-edges shows a complicated pattern. The density of electronic states projected on the different atoms indicates that there are different orbitals participating in the bonds.
Palabras clave:
Hopg
,
Spontaneous Deposition
,
Pt
,
Ag
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
Juarez, Maria Fernanda; Fuentes, Ana Silvina; Soldano, Germán; Avalle, Lucia Bernardita; Santos, Elizabeth del Carmen; Spontaneous formation of metallic nanostructures on highly oriented pyrolytic graphite (HOPG): an ab initio and experimental study; Royal Society of Chemistry; Faraday Discussions; 172; 5-2014; 327-347
Compartir
Altmétricas