物理化学学报 >> 1989, Vol. 5 >> Issue (02): 243-245.doi: 10.3866/PKU.WHXB19890224

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亚硫酰氯阴极还原的半对数极化曲线

李长明; 查全性   

  1. 武汉大学化学系
  • 收稿日期:1987-09-08 修回日期:1988-02-22 发布日期:1989-04-15
  • 通讯作者: 李长明

THE TAFEL PLOT OF THIONYL CHLORIDE REDUCTION

Li Changming*; Zha Quanxin   

  1. Department of Chemistry; Wuhaa University
  • Received:1987-09-08 Revised:1988-02-22 Published:1989-04-15
  • Contact: Li Changming

Abstract:

The electrochemical behaviors of thionyl chloride reduction in 0.11 mol dm~(-3) SOCl_2+ 0.1 mol dm~(-3) LiA1CI_4/DMF solution were studied with disc microelectrodes. For the first time, satisfactory Tafel plot with slope very nearly to 120mV/decade was obtained from steady polarization curve of thionyl chloride reduction. By analysis of the Tafel plot, it is clear that the first electron transfer of thionyl chloride reduction is a totally irreversible. The exchange current density of the first electron transfer of thionyl chloride reduction is 9.0×10~(-7)A.cm~(-2), andα value very near to 0.5.