Interfacial Electrochemistry in Metallic Film Fabrication

Author

Eric S. Tuala, Eastern Illinois UniversityFollow

Graduate Program

Chemistry

Degree Name

Master of Science (MS)

Semester of Degree Completion

Spring 2022

Thesis Director

Zhange Feng

Thesis Committee Member

Zhiqing Yan

Thesis Committee Member

Gopal R. Periyannan

Thesis Committee Member

Michael W. Beck

Abstract

An experimental determination of RC constant at the edge and the center of a disk electrode was done using in situ reflectance spectroscopy on a Au electrode immersed in HClO₄ as electrolyte. The RC constant at the edge of the disk electrode was found much smaller than that at the center. Such differences contribute to the selective removal of the deposited Cu on an Au disk electrode.

Furthermore, the electrochemical corrosion of Cu²⁺ towards Co electrode (called cementation reaction) was investigated using a Co/Pt rotating disk electrode. The Open Circuit Potential of Co electrode in CuSO₄ electrolyte was recorded at different rotation rates. The reaction rates between Cu²⁺ and Co electrode were calculated under different conditions such as the thickness of Co substrate, the concentration of Cu²⁺ in the electrolyte, and the presence of proton (acidic media).

Recommended Citation

Tuala, Eric S., "Interfacial Electrochemistry in Metallic Film Fabrication" (2022). Masters Theses. 4941.
https://thekeep.eiu.edu/theses/4941