Ch ical chemistr ectrochemid四 The rate of charge transfer Rate of reduction of Ox vox=kclox/ Oxtne b red Rate of oxidation of red vRed =kalRed/ Cathodic current density jc=Fklox/ Anodic current density ja= F kalred ⊙ e e 质门大学化学化工学院 The net current density at the electrode jja- F kalRed -F klox/ (8)11 Physical Chemistry The rate of charge transfer Rate of reduction of Ox Ox = kc [Ox] Rate of oxidation of Red Red = ka [Red] Cathodic current density jc = F kc [Ox] Anodic current density ja = F ka [Red] The net current density at the electrode j = ja -jc = F ka [Red] – F kc [Ox] (8) Ox + ne  Re d − Electrochemistry 演示