Citation:
Huang Yongchang, Chen Houlong. STUDY ON THE ANODIC REACTION OF CHLORINE EVOLUTION ON Ti/β-PbO2 ELECTRODE[J]. Chinese Journal of Applied Chemistry,
;1990, 7(2): 25-29.
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The kinetics of the chlorine evolution reaction on Ti/β-PbO2 electrode has been studied based on the current-potential curves using a rotating disc electrode. The reaction rate affect-ing factors, such as Cl- ion concentration and pH of the solution, have been examined, theb ydrogen ions were found to promote the chlorine evolution reaction. This has been ascribed to the competitive adsorption between H2O molecules and chloride ions at the active sites of the electrode surface. The following parameters were determined:the anodic transfer coeffi-cient, Tafel slope, and the reaction orders with respect to Cl- and H+. From the experimen-tal results the rate determining step of the anodic evolotion of chlorine on Ti/β-PbO2 electrode is found to be MCladi-→MCladi+-e
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