Oxygen-Containing Nanoclusters on the Surface of Pt-Electrodes and Oxygen Reduction Reaction in Alkaline Medium
Table 2
Potentials of intervals of cyclic voltammograms and peaks potentials of anodic and cathodic currents at various temperatures on monocrystalline [7, 8] and polycrystalline [3, 10] Pt-electrodes.
Electrode materials
Temperature, K
Potentials, V (vs RHE)
Interval
Peak I
Peak II
anodic branch
cathodic branch
anodic branch
cathodic branch
Pt(111)
293
0.6–1.1
0.78
0.78
1.05
1.00
333
0.78
0.78
0.95
0.90
Pt(110)
293
0.2–1.0
0.30
0.45
0.75
0.65
333
0.25
0.50
0.75
0.70
Pt(100)
293
0.2–1.1
0.60
0.60
1.00
0.95
333
0.60
0.60
0.98
0.95
Pt smooth
293
0.5–1.2
0.7
Absence of peak
1.1
0.80
values are approximate; they are results of author’s processing of graphical data from publications [3, 7, 8, 10]; defined peak; are significant currents between peaks I and II on cyclic voltammograms’ anodic branches for Pt(110) and Pt(100) monocrystalline and polycrystalline Pt-electrodes.
