Fig. 2. Cyclic voltammograms of PdMLPt(111) in (a) 0.1 M HClO4 (pH = 1), 0.01 M HClO4 (pH = 2) and 0.001 M HClO4 (pH = 3) solutions and (b) 0.1 M HClO4 (pH = 1), 0.5 M HClO4 (pH = 0.3) and 1.0 M HClO4 (pH = 0) solutions. The inset represents a magnification of the chosen potential window (0.30–0.60 VRHE). (c and d) 0.001 M HClO4 (pH = 3) solution without and with MeClO4, where Me is Li and Na, as indicated. Scan rate: 50 mV s−1.
