Electrochemical experiments were carried out in a 100ml solution using a stainless-steel mesh anode, an Pt wire quasi-reference electrode, and a 500nm electron-beam evaporated Au coating on 1 in 2 Si substrates. The solution was agitated at a stir rate of 200 rpm during all measurements and heated at 80C. All chemicals were purchased through Sigma Aldrich. Electrochemical measurements were performed on a Voltalab universal pulse dynamic-EIS voltammetry PGZ402 instrument. FTIR was acquired in attenuated-reflection mode using a Nicolet iS20 from Thermo Fisher.