Bidimensional Spectroelectrochemistry

A new methodology is presented to offer the possibility of simultaneously obtaining two different spectroscopic signals in a single spectroelectrochemical experiment. Taking the plane of the electrode surface as a spatial reference, normal-beam and parallel-beam UV−vis absorbance signals are jointly...

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Detalles Bibliográficos
Autores: López Palacios, Jesús, Colina Santamaría, Álvaro, Heras Vidaurre, Aránzazu, Ruiz Fernández, Virginia, Fuente, Luis
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2001
País:España
Institución:Universidad de Burgos (UBU)
Repositorio:Repositorio Institucional de la Universidad de Burgos (RIUBU)
OAI Identifier:oai:riubu.ubu.es:10259/11116
Acceso en línea:https://hdl.handle.net/10259/11116
Access Level:acceso abierto
Palabra clave:Spectroelectrochemistry
Diffusion layer
Adsorption
Electropolymerization
Optically transparent electrodes
Long-pathway thin layer cells
Espectroscopia
Electroquímica
Spectrum analysis
Electrochemistry
Descripción
Sumario:A new methodology is presented to offer the possibility of simultaneously obtaining two different spectroscopic signals in a single spectroelectrochemical experiment. Taking the plane of the electrode surface as a spatial reference, normal-beam and parallel-beam UV−vis absorbance signals are jointly analyzed, revealing important experimental differences between the two kinds of signals. Two different chemical systems are selected to show the possibilities of the bidimensional spectroelectrochemistry:  a simple diffusive process and an adsorptive electrode reaction. Comparative results show clearly that the two kinds of spectroscopic signals, both normal and parallel to the electrode surface, have to be used together in the study of any electrode reaction scheme.