Collect. Czech. Chem. Commun. 2000, 65, 161-166

Adsorption of Sulfur on the Platinum Electrode Surface in One or More Layers

Tomáš Loučka

Department of Technology, Faculty of the Environment, J. E. Purkyně University, Na okraji 1001, 400 01 Ústí nad Labem, Czech Republic


The influence of the H2S concentration on the charge required for oxidation of the adsorbed sulfur and on the nonstationary currents passing through the electrode was studied while hydrogen sulfide was introduced into the solution. At higher concentrations, more sulfur atoms are adsorbed on one platinum surface atom. Upon decreasing the concentration one atom of sulfur per one surface atom results and the number of sulfur atoms blocking two surface atoms starts growing gradually.

Keywords: Nonstationary currents; Sulfane; Sulfur; Electrooxidation; Platinum; Electrochemistry.

References: 10 live references.