Note on “Electrochemical promotion of catalytic reactions”

► A recent review of the electrochemical promotion of catalysis (EPOC or NEMCA effect) is discussed. ► The preparation of electropromoted catalysts is reviewed. ► The phenomenology and physicochemical origin of EPOC is surveyed. ► The effect of heat and mass transfer limitations on EPOC studies is discussed. ► The mechanism of EPOC is discussed in view of surface science techniques.