Efficient Electro-Oxidation of 2-Propanol at Platinum- and Gold-Modified Palladium Nanocatalysts

Figure 6

Nyquist plots recorded at AC potential amplitude of −0.4 V obtained at (a) Pd, (b) Pd/GC, (c) Pd/Pt/GC, and (d) Pd/Au/GC catalysts in 0.1 M NaOH solution containing 0.3 M 2-propanol. Frequency ranged from 10 mHz to 100 kHz.