中华医学超声杂志

应用化学 ›› 1985, Vol. 0 ›› Issue (1): 39-42.

• 研究论文 • 上一篇    下一篇

氧的阳极析出过程的研究Ⅰ.碱溶液中氧在铂、低碳钢电极上阳极析出动力学

金世雄, 田如江   

  1. 南开大学化学系
  • 收稿日期:1984-04-27 修回日期:1984-10-06 出版日期:1985-03-10 发布日期:1985-03-10

STUDY ON THE ANODIC REACTION OF OXYGEN EVOLUTIONⅠ.THE KINETICS OF OXYGEN EVOLUTION ON AND MILD STEEL IN BASE

Jin Shixiong, Tian Rujiang   

  1. Department of Chemistry, Nankai University
  • Received:1984-04-27 Revised:1984-10-06 Published:1985-03-10 Online:1985-03-10

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摘要： 本文用稳定的极化曲线法研究了碱溶液中氧在铂和低碳钢电极上的阳极析出过程,并研究了OH-、Cl-、CNS-、Li+、Na+和K+等离子对过程的影响。稳态的动力学数据表明,氧在上述阳极析出过程的机理符合电化学放电的规律,过程的速率由第二电子转移步骤所控制,即MOHad+OH-—→MOad+H2O+e。

Abstract: The kinetics of O2 anodic evolution was studied in alk.solution. The results show that the values of əψ/əlgi egual 39 mV and 120 mV at low and high currents, respectively, and that of əψ/əlgaOH-egual-2?39 mV at low currents and-120 mV at high currents. The kinetic data obtained show that the rate determining step of the anodic evolution of oxygen on Pt and mild steel electrode is MOHad+OH-→MOad+H2O+e The influences of Li+, Na+, K+, CNS- and Cl- ions on the reaction rate were discussed as well.

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