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Accession Number:
ADA278022
Title:
The Underpotential Deposition of Copper on Pt(311): Site Selective Deposition and Anion Effects
Corporate Author:
CORNELL UNIV ITHACA NY DEPT OF CHEMISTRY
Report Date:
1994-03-14
Abstract:
The underpotential deposition of copper on Pt311Pt2111x100 stepped surfaces has been studied and the results are compared with those for the same processes on Pt111 and Pt100. We find that the adsorption desorption of copper on the 111 terrace and 100 steps sites of this surface takes place at different potentials so that selective adsorption on terrace or step sites is possible. The potentials, and their relative position, are different from those on Pt111 and Pt100 surfaces. These differences are ascribed to competitive effects from the anions which adsorb more strongly on the 100 than on the 111 sites. In addition, the presence of halides Cl-, Br- dramatically affects the electrodeposition process.
Descriptive Note:
Technical rept.
Pages:
0042
Distribution Statement:
Approved for public release; distribution is unlimited.
Contract Number:
N00014-84-K-0656
File Size:
1.30MB
