Fig. 16. Q tip vs. E subs plots acquired by the interrogation of transients of the two adsorbed species on Ir (–OH(ads) and –H(ads)), the former being interrogated with 10 mM Fe(ii)–TEA (red dots) and the latter with 1 mM FcMeOH+(green dots). ΔEsub = 0.01 V and each dot represents an individual SI-SECM measurement. Blue line: CV of Ir UME in 2 M NaOH; v = 20 mV s−1. Black and green lines: Frumkin isotherm fits, using g′ = −6 and g′ = −2 respectively. Red line: order in which the data were obtained at ΔEsubs > 0.44 V. Reproduced from ref. 166 with permission from the American Chemical Society © 2015.
