Artículo

Why is gold such a good catalyst for oxygen reduction in alkaline media?

Quaino, Paola MonicaIcon ; Luque, N. B.; Nazmutdinov, Renat; Santos, Elisabeth; Schmickler, Wolfgang
Fecha de publicación: 12/2012
Editorial: Wiley VCH Verlag
Revista: Angewandte Chemie
ISSN: 1433-7851
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:

Resumen

The two faces of gold: The reduction of oxygen on gold electrodes in alkaline solutions has been investigated theoretically. The most favorable reaction leads directly to adsorbed O2- , but the activation energy for a two-step pathway, in which the first step is an outersphere electron transfer to give solvated O2-, is only slightly higher. d-band catalysis, which dominates oxygen reduction in acid media, plays no role. The reason why the reaction is slow in acid media is also explained.
Palabras clave: ELECTROCHEMISTRY , ELECTRON TRANSFER , GOLD , HETEROGENEOUS CATALYSIS , OXYGEN REDUCTION
 
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/199680
URL: https://onlinelibrary.wiley.com/doi/full/10.1002/anie.201205902
DOI: http://dx.doi.org/10.1002/anie.201205902
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Articulos(CCT - SANTA FE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - SANTA FE
Citación
Quaino, Paola Monica; Luque, N. B.; Nazmutdinov, Renat; Santos, Elisabeth; Schmickler, Wolfgang; Why is gold such a good catalyst for oxygen reduction in alkaline media?; Wiley VCH Verlag; Angewandte Chemie; 51; 52; 12-2012; 12997-13000
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