Please use this identifier to cite or link to this item: http://repositorio.ineel.mx/jspui/handle/123456789/157
Bimetallic PteAu nanoparticles supported on multi-wall carbon nanotubes as electrocatalysts for oxygen reduction
MARA BELTRAN GASTELUM
Rosa María Félix Navarro
JOSE ROBERTO FLORES HERNANDEZ
FRANCISCO PARAGUAY DELGADO
Edgar Alonso Reynoso-Soto
Acceso Abierto
Artículo
Inglés
18-Oct-2015
Platinum-gold nanoparticles supported on multi-wall carbon nanotubes (MWCNT) with various Pt:Au ratios are prepared by microemulsion method for use as electrocatalysts in the oxygen reduction reaction (ORR). The influence of the Pt:Au ratio on the electrocatalytic activity during ORR is investigated in detail. The synthesized nanomaterials are analyzed by different physicochemical techniques. The electrocatalytic activity for oxygen reduction is evaluated using a rotating disk electrode (RDE) system. We report that the activity and oxygen reduction mechanism depends strongly on the Pt:Au ratio; in the case of Pt:Au ratio higher than 0.60, oxygen is reduced to water by a four electron process pathway, while at 0.33 ratio the reaction follows a two-electron-transfer mechanism
http://repositorio.ineel.mx/jspui/handle/123456789/157
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