fig6
![Facile synthesis of platinum-copper aerogels for the oxygen reduction reaction](https://image.oaes.cc/3a6279be-d2ee-4edd-ad1e-c7986cb6c402/5125.fig.6.jpg)
Figure 6. Electrochemical catalysis of PtCu aerogels. (A) CV curves measured at 30 ℃ in Ar-saturated 0.1 M HClO4 with a sweep rate of 50 mV/s. (B) ORR polarization curves measured at 30 ℃ in O2-saturated 0.1 M HClO4 with a sweep rate of 5 mV/s and a rotation rate of 1600 rpm. (C) Mass and specific activities at 0.9 V vs. RHE. (D) CO-stripping curves measured at 30 ℃ in Ar-saturated 0.1 M HClO4 with a sweep rate of 20 mV/s. (E) Mass activities at 0.9 V vs. RHE before and after 5000 cycles of CV. (F) ECSAs before and after 5000 cycles of CV.