INFIQC 05475
INSTITUTO DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Unidad Ejecutora - UE
artículos
Título:
Hydrogen Evolution Reaction on NanostructuresElectrodes?a Scenario on Stepped Silver Surfaces
Autor/es:
OVIEDO, O. A.; RUDERMAN, A.; SANTOS, E.; JUAREZ, M.F.; LEIVA, E. P. M.; AVILA, M.
Revista:
Electrocatalysis
Editorial:
Springer
Referencias:
Lugar: Nueva York; Año: 2017 p. 587 - 593
ISSN:
1868-2529
Resumen:
We have investigated the scenario for the hydrogenevolution reaction at stepped silver surfaces in acid solutionsat high overpotentials using a simple kinetic model. Two in-dependent types of sites, at the steps and at the terraces, wereconsidered. The rate constants for the Volmer and Heyrovskyreactions were estimated. Both reactions occur with rate con-stant about two orders of magnitude larger at step sites than atterrace sites. Calculations of the activation energy for thesereacti ons using our theory of ele ctrocatalysis give similarresults.
