Carbon-Neutralized Direct Methanol Fuel Cell Using Bifunctional (Methanol Oxidation/CO₂ Reduction) Electrodes

Figure 3

The FESEM images of (a) the bare Ni mesh and (b) the dendritic Pd-Ag layers electrodeposited on Ni mesh at the high cathodic overpotential of -4 V. (c) The XRD patterns obtained from the electrodeposited Pd-Ag electrode. (d) The FESEM images of Pt-Zn layers coated on carbon paper.