Figure 4: Overpotential of the HOR/HER on Pt as a function of the HBE. | Nature Communications

Figure 4: Overpotential of the HOR/HER on Pt as a function of the HBE.

From: Correlating hydrogen oxidation and evolution activity on platinum at different pH with measured hydrogen binding energy

Figure 4

The overpotential for the HOR is at i=0.5ilim and the overpotential for the HER is at i=−1 mA cm−2disk in all pH-buffered electrolytes on Pt(110) (solid symbols) and (100) (open symbols) surfaces. Error bars are s.d. of at least two sets of experimental repeats.

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