Underpotential deposit electrocatalysis of fast redox reactions for electrochemical energy storage systems

摘要

The electrocatalysis of the Fe~(3+/2+) redox reaction at various electrode/electrolyte solution interfaces in the presence/absence of underpotential deposits of various metals has been investigated by the AC impedance method. Exchange current densities and double layer capacity data were obtained. On this basis, changes in the active surface area of the electrode and catalytic effects of the investigated metals were identified.