Fig. 11From: Recent developments of nano-structured materials as the catalysts for oxygen reduction reaction(reprinted with permission from Ref. [96, 97] Copyright @ 2018, 2016 Elsevier)a Oxygen reduction reaction (ORR) current densities of Pt, Pd, and Pd–Fe–Mo catalysts. b Current density of Pd/C, Pd–Co/C at 0.3 V in chronoamperometry measurements at BOT and EOTBack to article page