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Your search keyword '"Entissar Zenati"' showing total 3 results
Start Over Author "Entissar Zenati" Topic underpotential deposition
3 results on '"Entissar Zenati"'

1. Underpotential Deposition of Lead on Cu(100) in the Presence of Chloride: Ex-Situ Low-Energy Electron Diffraction, Auger Electron Spectroscopy, and Electrochemical Studies

Author

Philip N. Ross, Gessie M. Brisard, Nenad M. Markovic, Entissar Zenati, and Hubert A. Gasteiger

Subjects
Auger electron spectroscopy, Low-energy electron diffraction, Chemistry, Analytical chemistry, chemistry.chemical_element, Surfaces and Interfaces, Condensed Matter Physics, Electrochemistry, Underpotential deposition, Chloride, Copper, Transition metal, Electron diffraction, medicine, General Materials Science, Spectroscopy, medicine.drug
Abstract

Electrochemical and ultrahigh vacuum measurements are presented for the underpotential deposition (UPD) of Pb on Cu(100) in the presence of chloride ions. The chemistry is very similar to that for ...

Published
1997
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2. Underpotential Deposition of Lead on Copper(111): A Study Using a Single-Crystal Rotating Ring Disk Electrode and ex Situ Low-Energy Electron Diffraction and Scanning tunneling Microscopy

Author

Gessie M. Brisard, Philip N. Ross, Nenad M. Markovic, Hubert A. Gasteiger, and Entissar Zenati

Subjects
Rotating ring-disk electrode, Low-energy electron diffraction, Chemistry, Inorganic chemistry, Analytical chemistry, Surfaces and Interfaces, Condensed Matter Physics, Underpotential deposition, Overlayer, law.invention, Sputtering, law, Electrochemistry, General Materials Science, Scanning tunneling microscope, Rotating disk electrode, Single crystal, Spectroscopy
Abstract

The underpotential deposition of Pb was studied on Cu(111) single crystal surfaces prepared both by a novel electropolishing procedure and by sputtering/annealing in ultrahigh vacuum. Identical results were found with both methods. Pb atoms are deposited underpotentially on Cu(111) into a compact nonrotated hexagonal overlayer. The measured Pb coverage at saturation is 53% with respect to the Cu(111) substrate and is identical to the packing density of the (111) plane of bulk Pb. The presence of Cl - in the supporting electrolyte has a strong effect on the potential region where deposition/stripping occurs and on the reversibility of the reaction.

Published
1995
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