An Interfacial Study of Au(111) Electrodes in Deep Eutectic Solvents

The electrochemical behavior of Au(111) in contact with deep eutectic solvents (DESs) was studied by cyclic voltammetry, impedance spectroscopy (EIS), and immersion experiments to determine the potential zero total charge (pztc). In particular, DESs type III consisting a choline salt hydrogen bond donor (HBD) were investigated. HBDs urea ethylene glycol (EG) chosen since they belong, combination chloride (ChCl), most widely systems. A third HBD used this study trifluoroacetamide (TFAcA) because its remarkable freezing point depression. adsorption chloride, nitrate, sulfate anions on investigated using DESs, as aqueous electrolytes containing these already well studied. For better understanding interactions ions noble metal electrode surfaces, ChCl well. It shown that anion under consideration similar respective dilute