Accession Number:

ADA235623

Title:

A Model for Sequential First Order Phage Transitions Occurring in the Underpotential Deposition of Metals,

Descriptive Note:

Corporate Author:

PUERTO RICO UNIV RIO PIEDRAS DEPT OF PHYSICS

Personal Author(s):

• Huckaby, Dale A.
• Blum, L.

Report Date:

1991-04-29

Pagination or Media Count:

14.0

Abstract:

A model for the underpotential deposition of metals that occurs in stages is introduced. In this model the deposition takes place as a sequence of first order phase transitions of the adsorbate. In this application we study the underpotential deposition of Cu on a AuIII surface in the presence of sulfate ions. The voltammogram of the deposition shows two sharp spikes which are reproduced by our model.

Descriptors:

• *DEPOSITION
• *ALLOYS
• *METALS
• SPIKES
• SHARPNESS
• TRANSITIONS
• ADSORPTION
• SULFATES
• IONS

Subject Categories:

• Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE