Table 2 Number of the transferred electrons of three electrocatalysts during the ORR measurement in the presence of different concentrations of methanol.

From: A simple preparation of very high methanol tolerant cathode electrocatalyst for direct methanol fuel cell based on polymer-coated carbon nanotube/platinum

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