Mixed Potential Theory in Corrosion
The free online course on the concept of electrode double layer, as well as the relevance of the mixed potential theory.
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Mixed potential theory in corrosion is a free online course that begins by introducing you to the concept of the electrode double layer in a reaction, as well as the significance of the inner Helmholtz plane and outer Helmholtz plane. The course will also introduce you to the different types of polarization, as well as the correlation between current density and overvoltage. The derivation of the Butler-Volmer equation, as well as how the Tafel equation is derived will also be covered in this course.
This course then explains the concepts of activation polarization and concentration polarization, as well as total polarization in corrosion. You will learn about the derivation of the mixed potential theory, as well as some case studies that highlight the mixed potential theory and the events of corrosion. This course will teach you about how the Tafel plot can be explained using activation polarization.
Furthermore, this course will help you get familiar with the step-by-step process for drawing the Evans diagram for a reaction. You will also learn about the different changes that occur in the corrosion rate of a reaction. This free online course will be of great interest to students, researchers, and anyone with an interest in mixed potential theory and how it relates to corrosion. So, register for this course and start your next learning journey today.Start Course Now
Equations for Measuring Corrosion Rate
Equations for Measuring Corrosion Rate - Learning Outcomes
Electrode Double Layer and Polarization
Correlation Between Current Density and Overvoltage
Introduction to Butler-Volmer Equation
Derivation of Tafel Equation
Tafel Plot and Activation Polarization
Equations for Measuring Corrosion Rate - Lesson Summary
Introduction to Mixed Potential Theory
Introduction to Mixed Potential Theory - Learning Outcomes
Activation Polarization, Concentration Polarization, and Total Polarization
Summary of Concentration Polarization (CP)
Mixed Potential Theory
Drawing the Evans Diagram
Changes in Corrosion Rate
Examples Showing the Mixed Potential Theory
Introduction to Mixed Potential Theory - Lesson Summary
Upon successful completion of this course, you should be able to:
- Discuss the kinetics of corrosion from the perspective of the classical rate theory.
- Explain the formation of reverse reactions in a system.
- Discuss how the changes in potential can affect the activation barrier.
- Outline the steps to determine the equilibrium condition for a reaction.
- Outline how the Butler-Volmer equation is used to derive the Nernst equation.
- Identify the various forms of the Butler-Volmer equation.
- Discuss the process of cathodic and anodic polarization.
- Explain the effect of activation polarization on the energy barrier.
- Discuss the potential of the mixed potential theory.
- Identify the role played by the mixed potential theory in determining the corrosion rate.
- Outline the steps for constructing Evan's diagram.
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