The adsorption of methylamine on Pt single crystal surfaces
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Título: | The adsorption of methylamine on Pt single crystal surfaces |
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Autor/es: | Huerta Arráez, Francisco | Morallon, Emilia | Quijada Tomás, César | Vázquez Picó, José Luis | Pérez Martínez, Juan Manuel | Aldaz Riera, Antonio |
Grupo/s de investigación o GITE: | Electrocatálisis y Electroquímica de Polímeros |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Física |
Palabras clave: | Methylamine | Adsorbed cyanide | Platinum | Single crystal electrodes | FTIR spectroscopy | Cyclic voltammetry |
Área/s de conocimiento: | Química Física |
Fecha de creación: | 8-ene-1999 |
Fecha de publicación: | 7-jun-1999 |
Editor: | Elsevier |
Cita bibliográfica: | HUERTA ARRÁEZ, Francisco, et al. "The adsorption of methylamine on Pt single crystal surfaces". Journal of Electroanalytical Chemistry. Vol. 467, Issues 1-2 (7 June 1999). ISSN 0022-0728, pp. 105-111 |
Resumen: | The irreversible adsorption of methylamine at platinum single-crystal electrodes has been studied by a combination of electrochemical and in situ spectroscopic techniques. From purely electrochemical data, it has been stated that the adsorption of CH3NH2 molecules results in significant alteration of the Pt(h,k,l) adsorption capabilities. Voltammetric experiments show that the methylamine adlayer undergoes different surface processes depending on the orientation of the metallic substrate. This result contrasts intensely with the uniformity of the main product obtained from the open-circuit adsorption procedure, which has been identified as adsorbed cyanide for all surfaces. As concluded from the spectroscopic results, the interaction of methylamine with the platinum surfaces leads to the dehydrogenation (probably full dehydrogenation) of the molecule and to the formation of an adsorbed cyanide adlayer, which exhibits different surface reactivity on each basal surface. |
Patrocinador/es: | Generalitat Valenciana |
URI: | http://hdl.handle.net/10045/7809 |
ISSN: | 0022-0728 |
DOI: | 10.1016/S0022-0728(99)00022-4 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1016/S0022-0728(99)00022-4 |
Aparece en las colecciones: | INV - GEPE - Artículos de Revistas INV - GEM - Artículos de Revistas INV - LEQA - Artículos de Revistas |
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Journal of Electroanalytical Chemistry 467 (1999) 105–111.pdf | Versión final (acceso restringido) | 134,92 kB | Adobe PDF | Abrir Solicitar una copia |
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