Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/49954
Title: The dependence of the surface diffusion coefficients of gold atoms on the potential: its influence on reconstruction of metal lattices
Authors: Doña, J. M. 
González-Velasco, J.
UNESCO Clasification: 221005 Electroquímica
Issue Date: 1992
Publisher: 0039-6028
Journal: Surface Science 
Abstract: By using a method based on the time dependence of the surface roughness factor of electrodispersed gold electrodes it was possible to estimate values of the surface diffusion coefficients (Ds) of gold atoms in contact with an 1M HClO4 electrolytic solution at room temperature and as a function of the potential. The exponential growth of Ds with E at potentials positive with respect to the zero charge potential (Ez), is interpreted as a consequence of the increase in the surface mobility of gold atoms, associated with their growing interactions with species in the electrolyte (water molecules), and the consequent decrease of their interactions with bulk gold atoms, i.e. with the loss in metallic character inherent in the use of individual orbitais in the formation of covalent bonds with hydroxyls arising from water molecules.
URI: http://hdl.handle.net/10553/49954
ISSN: 0039-6028
DOI: 10.1016/0039-6028(92)90524-A
Source: Surface Science [ISSN 0039-6028], v. 274, p. 205-214
Appears in Collections:Artículos
Show full item record

SCOPUSTM   
Citations

49
checked on Apr 4, 2020

Page view(s)

12
checked on Apr 4, 2020

Google ScholarTM

Check

Altmetric


Share



Export metadata



Items in accedaCRIS are protected by copyright, with all rights reserved, unless otherwise indicated.