Relationship between the electron-transfer coefficients of the oxygen reduction reaction estimated from the Gibbs free energy of activation and the Butler–Volmer equation
Rajan Maurya, Rubul Das, Anand Kumar Tripathi, Manoj Neergat
Abstract
The electron-transfer coefficient ( α ) estimated from the Butler–Volmer equation (electrochemical kinetics) and that obtained from the potential-dependent Gibbs free energy of formation of the activated complex (Δ G # ) for an electrocatalytic reaction are different.
Topics & Concepts
OverpotentialGibbs free energyChemistryThermodynamicsElectron transferKinetic energyElectrochemistryCatalysisActivation energyTransfer (computing)Physical chemistryReaction rateRange (aeronautics)Marcus theoryReaction rate constantKineticsElectrodePhysicsMaterials scienceQuantum mechanicsOrganic chemistryComposite materialComputer scienceParallel computingElectrocatalysts for Energy ConversionAdvanced battery technologies researchElectrochemical Analysis and Applications