Figure 6. Single-cell performances of NPG-PtBi and Pt/C based MEAs.

C-V and C-P polarization curves of DGFC in (A) PBS (pH = 7) and (B) 2 M NaOH with 0.5 M glucose. The anode NPG-PtBi loaded 0.15 mg_Pt cm⁻² and 0.45 mg_Pt+Au cm⁻², while the commercial Pt/C was used as cathode with Pt loading of 2 mg cm⁻².