Influence of Synthesis pH on Textural Properties of Carbon Xerogels as Supports for Pt/CXs Catalysts for Direct Methanol Fuel Cells

Table 3

Onset and peak potentials extracted from methanol oxidation cyclic voltammetries measured for both the synthesised and commercial catalysts.

Catalyst	Onset potential/V versus RHE	Forward anodic peak/mA cm^−2	Reverse anodic peak/mA cm^−2
Pt/CX_550	0.53	1.13	1.00
Pt/CX_580	0.51	1.24	1.21
Pt/CB_Vulcan	0.49	0.86	1.23
Pt-E-TEK	0.48	0.43	0.42