Fig. 3: Synergistic interface effect of Pd/Co@N-C for electrocatalytic EOR performance.
From: Interface synergism and engineering of Pd/Co@N-C for direct ethanol fuel cells
a The CO oxidation peak on different samples with a scan rate of 20 mV dec−1. b Peak current density (J) normalized to Pd loading (left) and ECSA (right) of Pd/C, Pd/N-C, Pd/Co@N-C, and Pd+Co@N-C. c J as a function of the square root of the scan rate (v1/2). d The system resistance (Rs, left) and charge transfer resistance (RCT, right) at 0.6 VRHE for different samples. e Left axis: EOR mass activity before (solid bars) and after (dashed bars) AST for 500 cycles. Right axis: Percentage ratio of Jafter (mass activity after AST) to Jinitial (initial mass activity before AST). f Faradic efficiency (FE) of CO2 for EOR at different potentials. The error bars in (a, b, d, e, f) represent the s.d. of at least three independent measurements, and the data were presented as mean values ±s.d.
