Fig. 8: Electrochemistry of PtCl4 CVs in water.
From: Electrochemical growth mechanism of nanoporous platinum layers
a Separately recorded CVs of aqueous 0.5% PtCl4 (black line) and 0.01% Pb(CH3COO)2) (grey line); b separately recorded CVs of aqueous 0.01% Pb(CH3COO)2 and 0.5% PtCl4 + 0.01% Pb(CH3COO)2 (nuanced blue lines). For Pt4+ + 2e− → Pt2+, E1 = +0.05 V (without additives) and E*1 = +0.35 V (with additives), ΔE1,1* = E1 − E*1 = −0.30 V. For Pt2+ + 2e− → Pt0; E2 = −0.4 V (without additives), E*2 = −0.25 V (with additives), ΔE2,2* = E2 − E*2 = −0.15 V; c, d Nyquist plots of water at 0 V (red, green points), −1 V (blue points) and −2 V (black points) (c) and 0.5% PtCl4 in water at 0, −0.1, −0,2, −0.3, −0.4, −0.5, −0.6, −0.7, −0.8, −0.9, −1, −1.1, −1.4, −1.2, −1.3, −1.4 and −1.5 V (d).
