INVESTIGADORES
MOLINA fernando Victor
artículos
Título:
Electroreflectance of Well-Defined Pt Surfaces
Autor/es:
F. V. MOLINA; R PARSONS
Revista:
JOURNAL DE CHIMIE PHYSIQUE E DE PHYSICO CHIMIE BIOLOGIQUE
Editorial:
Société Française de Chimie
Referencias:
Lugar: Paris; Año: 1991 vol. 88 p. 1339 - 1352
ISSN:
0021-7689
Resumen:
A method has been devised to carry out UV/vis electroreflectance studies onelectrodes making a meniscus contact with the electrolyte. In this way theelectrochemical state of the surface can be monitored at the same time as theelectroreflectance is studied. Experiments have been carried out on Pt singlecrystals oriented to expose the low index plans (lll), (100) and (110). The regionfrom the adsorption of hydrogen to the early stages of the adsorption of oxygenspecies has been studied in the wavelength range 365 nm to 630 nm. Thecharacteristics of the reflectance change in the hydrogen region differ from thosein the oxygen region and confirm that the so-called ?anomalous? region may beattributed to hydrogen adsorption.
