Atomic structure of Cu adlayers on Au(100) and Au(111) electrodes observed byin situscanning tunneling microscopy
- 11 June 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 64 (24) , 2929-2932
- https://doi.org/10.1103/physrevlett.64.2929
Abstract
The atomic structure of ordered Cu adsorbate layers on Au(111) and Au(100) electrode surfaces and of the clean substrates was resolved in scanning tunneling microscopy images taken in situ. For submonolayer coverages deposited from sulfuric acid solutions under potential control, various ordered structures were observed. The quasihexagonal arrangement of Cu atoms in these structures reflects increasingly repulsive interactions between closely spaced Cu adatoms. These structures differ from the pseudomorphic Cu adlayer formed under vacuum conditions, which demonstrates the structure-determining role of the coadsorbed anions.Keywords
This publication has 11 references indexed in Scilit:
- Preparation of monocrystalline Pt microelectrodes and electrochemical study of the plane surfaces cut in the direction of the {111} and {110} planesPublished by Elsevier ,2010
- In Situ Scanning Tunneling Microscopy of Polycrystalline Platinum Electrodes under Potential Control: Copper Electrodeposition and Pyrrole ElectropolymerizationJournal of the Electrochemical Society, 1989
- In situ scanning tunneling microscopy at potential controlled Ag(100) substratesElectrochimica Acta, 1989
- In situ scanning tunneling microscopy studies of the underpotential deposition of lead on gold (111)The Journal of Physical Chemistry, 1989
- An in-situ scanning tunneling microscopy study of au (111) with atomic scale resolutionJournal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1988
- In-plane structure of underpotentially deposited copper on gold(111) determined by surface EXAFSLangmuir, 1988
- UHV Techniques in the Study of Electrode SurfacesZeitschrift für Physikalische Chemie, 1987
- Elementary steps of electrochemical oxidation of single-crystal planes of Au—I. Chemical basis of processes involving geometry of anions and the electrode surfacesElectrochimica Acta, 1986
- A LEED and RHEED Investigation of Cu on Au(111) in the Underpotential RegionBerichte der Bunsengesellschaft für physikalische Chemie, 1984
- Potentiodynamic desorption spectra of metallic monolayers of Cu, Bi, Pb, Tl, and Sb adsorbed at (111), (100), and (110) planes of gold electrodesSurface Science, 1976