Table 2.

ORR performance parameters of representative samples and commercial Pt/C catalysts tested in alkaline media.

Catalysts	Ep (V vs. RHE)	Eonset (V vs. RHE)	E1/2 (V vs. RHE)	Diffusion-Limiting Current (mA cm−2)	n (0.5 V)
Pt/C (20% wt.)	0.76	1.030	0.88	6.37	4.00
CNT/MM-300	0.77	0.759	0.72	3.08	2.77
CNT/MM-800	0.78	0.772	0.74	3.26	2.80