Fig. 6: Thermokinetic analyses for I-PCET.
From: Proton-coupled electron transfer controls peroxide activation initiated by a solid-water interface

Linear correlations were observed between the logarithm of the kapp value and pH, with different slopes for the following systems: (A) CuO/PMS, (B) NiO/PMS, (C) Co3O4/PMS, and (D) NiO-air/PMS. Error bars indicate the standard deviation of duplicate measurements (n = 2). Experimental conditions: [PMS] = 0.3 mM, [PhOH] = 0.15 mM, catalyst = 0.2 g L–1, T = 25 ± 2 °C, 0.2 M borate or glycine buffer. BDFE is the primary energetic parameter.