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. 2017 Nov 10;5(2):1700464. doi: 10.1002/advs.201700464

Figure 2.

Figure 2

a) Exchange current densities, log(i 0), on monometallic surfaces plotted as a function of the calculated HBE. The i 0s for non‐Pt metals were obtained by extrapolation of the Tafel plots between −1 and −5 mA cmdisk −2 to the reversible potential of the HER and then normalization by the ESAs of these metal surfaces. The dashed lines are guides for the eye. Reproduced with permission.20 Copyright 2013, Royal Society of Chemistry. b) Volcano curve for electrocatalysis of the HER at various metals in terms of dependence of log j o values on metal‐to‐H bond energy. Reproduced with permission.21 Copyright 2000, Elsevier.