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. 2017 Feb 24;3(2):e1601705. doi: 10.1126/sciadv.1601705

Fig. 5. Electrocatalytic durability of subnanometer PtNiCo NWs, PtNi NWs, and commercial Pt/C.

Fig. 5

ORR polarization curves of (A) Pt/C, (C) PtNi NWs, and (E) PtNiCo NWs before and after different potential cycles between 0.6 and 1.1 V versus RHE. The ORR polarization curves were recorded at room temperature in an O2-saturated 0.1 M HClO4 aqueous solution at a sweep rate of 10 mV/s and rotation rate of 1600 rpm. The changes in ECSA and mass activities of (B) Pt/C, (D) PtNi NWs, and (F) PtNiCo NWs before and after different potential cycles.