Interactive Resource icon  Butler-Volmer Equation

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Description: The total current (I) in a system is the sum of anodic and cathodic currents. This is the so-called Butler-Volmer equation and the animation shows it graphically. For practical purposes the Butler-Volmer equation is mostly plotted with a logarithmic i-scale. These are often referred to as Evans diagram (although these are normally given with the log i on the horizontal axis and potential on the vertical one) or polarisation plots.
Keywords: Evans diagram • polarisation plot • current • anodic current • cathodic current • Arrhenius equation
Categories: Science approaches > Corrosion & degradation
Science approaches > Corrosion & degradation > Corrosion principles
Materials > Metals & alloys > Aluminium & alloys
Created by: MATTER, The University of Liverpool
Steven Meijers, Corus
Carlos Caicedo-Martinez, Corus
Contributions: Andreas Blistein, Alcan
Herman Terryn, Vrije Universiteit Brussel (VUB)
Iris De Graeve, Vrije Universiteit Brussel (VUB)
Marc Ryckeboer, Sapa
Published by: European Aluminium Association, Brussels
License: This resource is released under the Creative Commons Attribution Non-Commercial No Derivatives license (2.0 UK: England & Wales).
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Date created: 12 January 2005
Date added: 06 July 2010
Resource ID: 2852