Fig. 2: Potential cycle dependence of OER activity on low-index planes of Pt.
From: Tailoring the active site for the oxygen evolution reaction on a Pt electrode
a Cyclic voltammograms of Pt(111) in 0.1 M HClO4 between 0.05 and 1.6 V recorded during 50 consecutive potential cycles at a scan rate of 0.05 V s–1. b Potential cycle dependence of the specific OER activity (jOER) at 1.6 V on the low-index planes of Pt. c, d Enlargement of the Pt(111) voltammograms in 0.1 M HClO4 and 0.05 M H2SO4, respectively, between 0.05 and 1.6 V recorded during 50 consecutive potential cycles at a scanning rate of 0.05 V s–1. e Hard-sphere model of atomic size vacancies (single vacancy and 3–10 missing-atom vacancies), Vx-y, formed on the (111) facet, where x and y denote the number of extracted atoms in the topmost surface and the second subsurface layers, respectively.
