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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. shu

STUDY ON THE ANODIC REACTION OF CHLORINE EVOLUTION ON Ti/β-PbO₂ ELECTRODE

1.
Shanghai Jiao-Tong University, Shanghai 200030

Received Date: 6 April 1989
Available Online: 26 September 1989

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 MCl_adi^-→MCl_adi+^-e
- Ti-supported lead dioxide electrode,
- chlorine evolution reaction,
- kinetics,
- mechanism
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STUDY ON THE ANODIC REACTION OF CHLORINE EVOLUTION ON Ti/β-PbO2 ELECTRODE

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STUDY ON THE ANODIC REACTION OF CHLORINE EVOLUTION ON Ti/β-PbO₂ ELECTRODE