Electrodes. The AgCl aqueous electrode was prepared via oxidation of Ag wire in 100 mM HCl at a rate of 1 mA for 10 minutes. The nonaqueous pseudoreference electrode was an Ag wire wiped with sandpaper and sonicated in water for several minutes. It was deemed acceptable if the open circuit potential against the aqueous AgCl wire in an ion transfer at the ITIES experiment was stable to within +/ 10 mV.