Kinetics of CO<sub>2</sub> electroadsorption on electrodispersed platinum electrodes in acid solutions

The kinetics of CO<sub>2</sub> electroadsorption on electrodispersed Pt electrodes have been investigated in different acid electrolytes. The kinetic data obtained at different adsorption potentials, adsorption times and CO<sub>2</sub> concentrations in solution have been int...

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Autores principales: Marcos, M. L., González Velasco, J., Vara, J. M., Giordano, M. C., Arvia, Alejandro Jorge
Formato: Articulo
Lenguaje:Inglés
Publicado: 1990
Materias:
Ciencias Exactas
Química
Kinetics
Electroadsorption
CO2
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/121791
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-121791
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Química
Kinetics
Electroadsorption
CO2
spellingShingle Ciencias Exactas
Química
Kinetics
Electroadsorption
CO2
Marcos, M. L.
González Velasco, J.
Vara, J. M.
Giordano, M. C.
Arvia, Alejandro Jorge
Kinetics of CO<sub>2</sub> electroadsorption on electrodispersed platinum electrodes in acid solutions
topic_facet Ciencias Exactas
Química
Kinetics
Electroadsorption
CO2
description The kinetics of CO<sub>2</sub> electroadsorption on electrodispersed Pt electrodes have been investigated in different acid electrolytes. The kinetic data obtained at different adsorption potentials, adsorption times and CO<sub>2</sub> concentrations in solution have been interpreted in terms of two complex reaction mechanisms involving the formation of strongly and weakly bound reduced CO<sub>2</sub> adsorbates through reactions involving s-H and w-H adatoms, respectively, and carbon dioxide. The reaction mechanism between H adatoms and CO<sub>2</sub> implies the initial electroadsorption of H atoms, the transport of CO<sub>2</sub> from the bulk of the solution to the reaction interface, and the formation of the reduced CO<sub>2</sub> adsorbate. Under certain conditions, particularly when s-H adatoms are involved, the entire reaction approaches mass transport rate control. Conversely, the reaction between w-H adatoms and CO<sub>2</sub> appears as a rather slow process.
format Articulo
Articulo
author Marcos, M. L.
González Velasco, J.
Vara, J. M.
Giordano, M. C.
Arvia, Alejandro Jorge
author_facet Marcos, M. L.
González Velasco, J.
Vara, J. M.
Giordano, M. C.
Arvia, Alejandro Jorge
author_sort Marcos, M. L.
title Kinetics of CO<sub>2</sub> electroadsorption on electrodispersed platinum electrodes in acid solutions
title_short Kinetics of CO<sub>2</sub> electroadsorption on electrodispersed platinum electrodes in acid solutions
title_full Kinetics of CO<sub>2</sub> electroadsorption on electrodispersed platinum electrodes in acid solutions
title_fullStr Kinetics of CO<sub>2</sub> electroadsorption on electrodispersed platinum electrodes in acid solutions
title_full_unstemmed Kinetics of CO<sub>2</sub> electroadsorption on electrodispersed platinum electrodes in acid solutions
title_sort kinetics of co<sub>2</sub> electroadsorption on electrodispersed platinum electrodes in acid solutions
publishDate 1990
url http://sedici.unlp.edu.ar/handle/10915/121791
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