The nature and stability of the Au(110)/electrochemical interface produced by flame annealing

It is shown using reflection anisotropy spectroscopy (RAS) that following flame annealing and immersion in pure water, the Au(110) surface adopts a (1×1) structure and that this structure is preserved in a 0.1 M H2SO4 environment. The surface transforms to the (1×2) reconstruction following the appl...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Condensed matter 2012-12, Vol.24 (48), p.482002-482002
Main Authors: Smith, C I, Harrison, P, Farrell, T, Weightman, P
Format: Article
Language:English
Subjects:
Calomel electrode
Condensed matter
Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Flame annealing
Immersion
Physics
Reflection
Solid surfaces and solid-solid interfaces
Stability
Surface chemistry
Surface structure and topography
Surfaces and interfaces
thin films and whiskers (structure and nonelectronic properties)
Transforms
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:It is shown using reflection anisotropy spectroscopy (RAS) that following flame annealing and immersion in pure water, the Au(110) surface adopts a (1×1) structure and that this structure is preserved in a 0.1 M H2SO4 environment. The surface transforms to the (1×2) reconstruction following the application of a potential of 0.0 V versus SCE (a saturated calomel electrode). This surface is unstable and the RAS profile changes over periods of 15 min and 1 h in a manner which suggests that changes are occurring in the structure and distribution of steps. Over longer periods the RAS transforms towards a profile attributed to a surface associated with the specific adsorption of anions.
ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/24/48/482002