Arteleo Chemistry Journal

E V vs AgAgCI satd KCI

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FIGURE 14.6. Cyclic voltammetric curves for a Au81Pt19/C catalyst (24 wt.%) on GC electrode (0.07 cm2) in 0.5M H2SO4 electrolytes saturated with O2 (solid curves) and Ar (dash curves). Scan rate: 50 mV/s (from Ref. 35).

TABLE 14.1. Electrocatalytic activities of several different catalysts for ORR (saturated O2) in terms of peak potential (Epa) and peak current (¡pa) (from Ref. 35).

Catalyst

Au/C

AuPt/C

AuPt/C

17 Au

24 Au72Pt28 39 Au68Pt32