In order to estimate the methanol tolerance of the catalysts, CA analysis for ORR at 0.8 V were studied by RDE at 1600 rpm in the presence of 3 M methanol in 0.1 M aqueous KOH electrolyte. As illustrated in Figure , the relative current density of FeNi-NC@MWCNT shows minimal change over the measurement, indicating the high methanol tolerance. In sharp contrast, the current density of Pt/C catalyst drops rapidly after injecting methanol under identical conditions.