INVESTIGADORES
DEL POPOLO Mario Gabriel
artículos
Título:
A combined experimental and theoretical study of the generation of palladium clusters on Au(111) with a scanning tunnelling microscope
Autor/es:
DEL POPOLO M.G., LEIVA E.P.M., KLEINE H., MEIER J., STIMMING U., MARISCAL M., SCHMICKLER W.
Revista:
ELECTROCHIMICA ACTA
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Año: 2003 vol. 48 p. 1287 - 1294
ISSN:
0013-4686
Resumen:
Palladium clusters have been deposited on the surface of a Au(111) electrode with the tip of a scanning tunnelling microscope. The distance over which the tip was moved towards the surface has a decisive influence on the properties of the clusters: the larger this distance, the larger the generated clusters, and the more stable they are. These findings are supported by computer simulations, which further suggest that the larger clusters contain a sizable amount of gold, which enhances their stability. Dissolution of the clusters occurs from the edges rather than layer by layer.
