Table 2 Number of the transferred electrons of three electrocatalysts during the ORR measurement in the presence of different concentrations of methanol.
Electrocatalyst | 0 M | 0.5 M | 1 M | 2 M |
|---|---|---|---|---|
CB/Pt | 4.0 | 3.0 | 2.9 | 2.8 |
MWNT/PyPBI/Pt | 3.9 | 3.7 | 3.6 | 3.5 |
MWNT/PyPBI/Pt/PVPA | 4.0 | 3.9 | 3.8 | 3.8 |