In situ and real time study of an electrode process by differential x-ray diffraction. Part 1. Ag underpotential deposition on au(111)

The underpotential deposition of Ag on Au(111) was used to demonstrate the adsorption of monolayers at the electrode ¦ electrolyte interface and their measurement with X-ray diffraction in situ and in real time. The information obtained is that of the adlayer spacing during the monolayer formation w...

Full description

Saved in:
Bibliographic Details
Published in:Journal of electroanalytical chemistry (Lausanne, Switzerland) Switzerland), 1996-08, Vol.412 (1), p.67-75
Main Authors: Chabala, E.D., Ramadan, A.R., Brunt, T., Rayment, T.
Format: Article
Language:English
Subjects:
Chemistry
Electrochemical interface
Electrochemistry
Electrodeposition
Exact sciences and technology
General and physical chemistry
In situ study
Real time study
Study of interfaces
Underpotential deposition
X-ray diffraction
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:The underpotential deposition of Ag on Au(111) was used to demonstrate the adsorption of monolayers at the electrode ¦ electrolyte interface and their measurement with X-ray diffraction in situ and in real time. The information obtained is that of the adlayer spacing during the monolayer formation with respect to the interplanar spacing in the bulk of the substrate. Although it was not straightforward to assign the spacings of the Ag adlayer to adsorption sites on the Au(111) electrode, it was possible to observe phase transitions in the adlayer during underpotential deposition. Detailed theory of the differential X-ray diffraction phenomenon and data analysis is given. A conventional laboratory source of X-rays was used.
ISSN:1572-6657
1873-2569
DOI:10.1016/0022-0728(96)04597-4