CHARACTERIZATION OF A PT+PD ALLOY ELECTRODE BY UNDERPOTENTIAL DEPOSITION OF COPPER

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FICICIOGLU F., KADIRGAN F.

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, vol.346, pp.187-196, 1993 (SCI-Expanded)

• Publication Type: Article / Article
• Volume: 346
• Publication Date: 1993
• Doi Number: 10.1016/0022-0728(93)85012-6
• Journal Name: JOURNAL OF ELECTROANALYTICAL CHEMISTRY
• Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Page Numbers: pp.187-196
• Istanbul Technical University Affiliated: No

Abstract

The surface characterization of a Pt+Pd alloy electrode using copper deposited at underpotentials is described. The alloy was prepared by codeposition under the same conditions at all times. The surface of the Pt+Pd alloy (20at.% Pd) electrode was pretreated by simple flame annealing. The behaviour of the underpotentially deposited copper was studied as a function of time, deposition potential and CuSO4 concentration. The true surface areas, calculated from surface estimations based on the oxygen and copper monolayers, are compared.