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

[img] Text
1-s2.0-S0013468614013905-main.pdf - Published Version
Restricted to registered users only
Available under License Publisher holds Copyright.

Download (2MB) | Request a copy

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.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry

UniBE Contributor:

Yoshida, Koji; Kuzume, Akiyoshi; Broekmann, Peter and Wandlowski, Thomas

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 540 Chemistry
500 Science

ISSN:

0013-4686

Publisher:

Elsevier Science

Language:

English

Submitter:

Beatrice Niederhauser

Date Deposited:

25 Mar 2015 14:23

Last Modified:

25 Aug 2015 10:25

Publisher DOI:

10.1016/j.electacta.2014.06.162

BORIS DOI:

10.7892/boris.65765

URI:

https://boris.unibe.ch/id/eprint/65765

Actions (login required)

Edit item Edit item
Provide Feedback