Reconstruction and electrochemical oxidation of Au(110) surface in 0.1 M H2SO4

Yoshida, Koji; Kuzume, Akiyoshi; Broekmann, Peter; Pobelov, Ilya V.; Wandlowski, Thomas (2014). Reconstruction and electrochemical oxidation of Au(110) surface in 0.1 M H2SO4. Electrochimica acta, 139, pp. 281-288. Elsevier Science 10.1016/j.electacta.2014.06.162

Text 1-s2.0-S0013468614013905-main.pdf - Published Version Restricted to registered users only Available under License Publisher holds Copyright. Download (2MB)

Variations of the surface structure and composition of the Au(110) electrode during the formation/lifting of the surface reconstruction and during the surface oxidation/reduction in 0.1 M aqueous sulfuric acid were studied by cyclic voltammetry, scanning tunneling microscopy and shell-isolated nanoparticle enhanced Raman spectroscopy. Annealing of the Au(110) electrode leads to a thermally-induced reconstruction formed by intermixed (1×3) and (1×2) phases. In a 0.1 M H2SO4 solution, the decrease of the potential of the atomically smooth Au(110)-(1×1) surface leads to the formation of a range of structures with increasing surface corrugation. The electrochemical oxidation of the Au(110) surface starts by the formation of anisotropic atomic rows of gold oxide. At higher potentials we observed a disordered structure of the surface gold oxide, similar to the one found for the Au(111) surface.

Interest & Impact

Downloads

2 since deposited on 25 Mar 2015
0 in the past 12 months

Citations

5 Citations in Web of Science ®
6 Citations in Scopus

Search

in Google Scholar™

Services

Actions (login required)

Edit item

Actions (login required)

Edit item