Digital impedance for faradaic analysis III. copper corrosion in oxygenated 0. 1N HC1

Journal Article · Mon Jul 01 00:00:00 EDT 1985 · J. Electrochem. Soc.; (United States)

DOI:https://doi.org/10.1149/1.2114165· OSTI ID:6349143

Smyrl, W H; Stephenson, L L

Impedance measurements have been made on copper rotating disks corroding in oxygenated 0.1N HC1. A model is developed here for the first time for the faradaic impedance of a corrosion couple consisting of an anodic dissolution reaction dominated by convective diffusion and a cathodic reaction under kinetic control. The model was found to be obeyed for all values of disk rotation rate, oxygen concentration, and voltage excitation frequency. The corrosion rate was found to depend on oxygen concentration to the 2/3 power, and on rotation rate to the 1/6 power.

• Research Organization: Sandia National Laboratories, Division 1841, Albuquerque, New Mexico
• OSTI ID: 6349143
• Journal Information: J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 132:8; ISSN JESOA
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250902* -- Energy Storage-- Batteries-- Performance & Testing
250903 -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ANODES
CATHODES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
COPPER
CORROSION
CORROSIVE EFFECTS
DIGITAL SYSTEMS
DISSOLUTION
ELECTRIC BATTERIES
ELECTRIC IMPEDANCE
ELECTROCHEMICAL CELLS
ELECTROCHEMICAL CORROSION
ELECTROCHEMISTRY
ELECTRODES
ELEMENTS
FARADAY EFFECT
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
IMPEDANCE
INORGANIC ACIDS
KINETICS
MATHEMATICAL MODELS
MEASURING METHODS
METALS
REACTION KINETICS
TRANSITION ELEMENTS