Fig. 5: Synergistic interface effect of Pd/Co@N-C for electrocatalytic ORR performance.
From: Interface synergism and engineering of Pd/Co@N-C for direct ethanol fuel cells
a ORR half-wave potential (E1/2) of different samples. RHE, reversible hydrogen electrode. V, the voltage without current (i)-resistance (R) compensation. b Electron transfer number (n, left) and H2O2 production (right) by RRDE test. c ORR mass activity at 0.9 VRHE. d ORR polarization curves of Pd/Co@N-C before and after AST for 15k and 30k cycles. e Normalized ORR initial mass activity, as well as after 15k and 30k cycles AST. f Volcano plot for ORR on Pd(111) with different OH coverages. The data to fit the volcano plot are adapted with permission from Ref. 62. Copyright 2018, American Chemical Society.
