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. Hots, Bottom: plot of the current enhancement I cat /I p as function of the concentration of HOTs at a scan rate of 0.5 V s ? 1 (squares) and 5 V s ? 1 (circles), respectively, p.20

. Fig, Left: background-corrected electrocatalytic responses of 2 (top) and 1 (bottom) in the presence of 12 molar equiv. of HOTs derived from CVs recorded at 0.5 V s ? 1 . Right: foot-ofthe-wave analyses. Linear fits (dotted line) to the data show that the electrocatalytic responses deviate from ideal behavior at I/I p > 1