Electrocatalytic Reduction of Thionyl Chloride by Schiff Base Metal(II) Complexes (1)

• Published in: Bulletin of the Korean Chemical Society 1995, Vol.16 (3), p.205-210
• Main Authors: 신미숙, 김우성, 조기형, 최용국, Sin, Mi Suk, Kim, U Seong, Jo, Gi Hyeong, Choe, Yong Guk
• Format: Article
• Language: Korean
• ISSN: 0253-2964; 1229-5949

Catalytic effects of various Schiff base metal(II) complexes on the reduction of thionyl chloride at glassy carbon electrode are evaluated by determining the kinetic parameters from cyclic voltammetry technique. The charge transfer process is affected strongly by the concentration of catalysts during the reduction of thionyl chloride. The catalytic effects are shown by both a shift of the reduction potential for thionyl chloride toward more positive direction and an increase in peak current. The diffusion coefficient value, Do, of the 8.17 ${\times}$ 10-9 $cm^2/s$ was observed at the bare glassy carbon electrode, whereas larger values (0.9-1.09 ${\times}$ 10-8 $cm^2/s$) were observed at the catalyst supported glassy carbon electrode. Significant improvements in the cell performance have been noted in terms of both exchange rate constants and current densities at glassy carbon electrode.