| Sulfide is most often encountered as a waste product of the pulp and paper, petroleum, and mining industries. Organic decomposition is another major source of sulfide. During my M. Sc. program, I have studied electrochemical oxidation of aqueous sulfide on Pt electrodes as well as on IrO2-based electrodes using a number of electrochemical methods (e.g., cyclic voltammetry, cyclic and linear galvanic voltammetry, differential capacitance, chronoamperommetry, chronopotentiommetry, galvanostatic technique, and electrochemical impedance spectroscopy (EIS)) and surface analytical techniques such as scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS).;Investigating electrochemical oscillations plays an important role in nonlinear dynamic studies. During the oxidation of sulfide on a platinum electrode we observed current oscillations and two distinct potential oscillations (Oscillation alpha and Oscillation beta) as well as bistability features. (Abstract shortened by UMI.)... |
