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Title

Fractional quantum conductance values in Au nanoelectrodes due to hydrogen adsorption

AuthorsDíaz Muñoz, Marcos ; Martín-González, Marisol; Costa Krämer, José Luis
KeywordsNanocontact
Gold
Fractional quantum conductance
Electrochemical environment
Hydrogen adsorption
Issue Date16-May-2010
PublisherElsevier
CitationSurface Science 604 (2010)
AbstractHydrogen adsorption in gold nanocontact electrodes in electrochemical solution is experimentally discerned. This is performed with gold nanocontact conductance histograms in an electrochemical environment in which both the electrochemical potential and the electrolyte type are varied. Different salts, acids, and hydrogen peroxide electrolytes are studied. Salts and acids exhibit at negative electrochemical potentials different fractional quantum conductance histograms peaks associated to extra stable structures due to H adsorption while these peaks do not appear for H2O2 where electron transfer between solution and electrodes occurs without hydrogen formation or hydrogen adsorption on the gold electrode.
Publisher version (URL)http://dx.doi.org/10.1016/j.susc.2010.05.003
URIhttp://hdl.handle.net/10261/26025
DOI10.1016/j.susc.2010.05.003
ISSN0039-6028
Appears in Collections:(IMN-CNM) Artículos
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