Faradaic current measured in a solution containing two electroactive substances, A and B, that exceeds the sum of the faradaic currents that would be obtained for A and B separately under the same experimental conditions.
CatalyticCurrent
[2,"smw-datavalue-wikipage-property-invalid-title","HasComment","In either of the two following situations, the current increase is termed a catalytic current: (i) The scheme below generates a catalytic or regenerative current: B±e→ B′ B' + A → B (ii) The presence at the electrode-solution interface of a substance, which may be added or generated by an electrochemical reaction, decreases the overpotential for the electrochemical reaction of B. In either case, the magnitude of the catalytic current depends on the applied potential. If the current observed with a mixture of A and B is lower than the sum of the separate currents, the term non-additive current should be used.@en"]