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. 2023 May 3;123(10):6716–6792. doi: 10.1021/acs.chemrev.2c00751

Figure 28.

Figure 28

(A) Cyclic voltammograms of NPG partially covered by a Pb UPD layer (5th cycle, v = 10 mV s–1) in 0.1 mol L–1 KNO3 + 0.1 mol L–1 KOH with addition of different concentrations of Pb(NO3)2 (converted to [Pb(II)(OH)m](2–m)–). (B) Cyclic voltammograms of methanol electrooxidation at NPG partially covered by Pb UPD or adsorbed [Pb(II)(OH)m](2–m)– (v = 10 mV s–1) in 1 mol L–1 MeOH + 0.1 mol L–1 KNO3 + 0.1 mol L–1 KOH with different concentration of [Pb(II)(OH)m](2–m)–). The surface is covered by specifically adsorbed [Pb(II)(OH)m](2–m)– anions in the potential range of MOR. The bulk concentrations of [Pb(II)(OH)m](2–m)– in mol L–1 are (1) 0, (2) 1 × 10–5, (3) 5 × 10–5, (4) 1 × 10–4, (5) 5 × 10–4, (6) 1 × 10–3 in (A) and (B). Reproduced and adapted with permission from ref (107). Copyright 2021 The Authors under license CC-BY.