Fig. 18.

I–V and I–P curves of a one-compartment H₂O₂ fuel cell with Ni anode and [Fe^III(Pc)Cl] cathode. Performance tests were conducted in an acetate buffer containing 3.0 × 10⁻¹ mol L⁻¹ H₂O₂. The pH of the solutions was fixed to 5 (a, blue), 4 (a, black) or 3 (b, red). Currents and powers were normalized by a geometric surface area of electrode.