Figure 3: CVs and HBEs of Pt in a full range of solution pH.

(a) Steady state CVs of Pt collected in selected Ar-saturated electrolytes at a sweep rate of 50 mV s−1. The CV curves have been corrected for solution resistance. (b) HBEs on Pt(110) (solid symbols) and (100) (empty symbols) surfaces obtained from CVs as a function of solution pH. Error bars are s.d. of at least two sets of experimental repeats.