1. Voltammetric behaviour of irreversibly adsorbed SO2 on a Pt(111) electrode in sulphuric acid medium César Quijada, José L. Vázquez, Juan M. Pérez and Antonio Aldaz, Journal of Electroanalytical Chemistry Volume 372, Issues 1-2, 8 July 1994, Pages 243-250 2. Coadsorption of sulphur and hydrogen on Pt(111) studied by radiotracer and electrochemical techniques E. Protopopoff and P. Marcus Surface Science Volume 169, Issue 1, 1 April 1986, Pages L237-L244 3.The adsorption of sulfur on the (100) and (111) faces of platinum; A LEED and AES study W. Heegemann, K. H. Meister, E. Bechtold and K. Hayek Surface Science Volume 49, Issue 1, 1 April 1975, Pages 161-180 谢谢!