While the overlap between experimental and model ORR currents is certainly not perfect, the similarities are intriguing considering the simplicity of the herein presented model. Going one step further, one can construct a Volcano plot based on this model (Fig. dissociated, leading to a Volcano relationship with always equilibrated electron transfer steps. This leads to the interpretation that the ORR may appear as a classical electrochemical reaction, it actually is a simple dissociative adsorption reaction in disguise.