Electrochemical promotion of a Pt catalyst supported on La0.6Sr0.4Co0.2Fe0.8O3 − δ hollow fibre membranes

► Wireless electrochemical promotion (EPOC) of Pt on hollow fibre membranes. ► Chemical potential difference for catalytic activity control. ► Catalytic rate can be enhanced by using an oxygen sweep. ► Rate increase continues upon return to symmetrical operation. ► EPOC used for in situ regeneration of a deactivated catalyst.