... author and conceived of the study, carried out theconception and design, synthesis and experiments, characterization, acquisition of data, analysis and interpretation of data, and drafting of the ... between 20 and 22°C and a pressure of 1 atm. ThepH of the solution varies as a function of HAuCl4concentration. Nernstequation describes potential of electrochemical cell as a function of concentrations ... characterizations and aided in the drafting of themanuscript. AS participated in the design of the study, carried out synthesis and experiments and helped draft the manuscript. AYL and VN participated...