Pt／YSZ固体电解质界面的电化学动力学研究

电化学（中英文） ›› 1996, Vol. 2 ›› Issue (1): 32-40.

Pt／YSZ固体电解质界面的电化学动力学研究

江义，李文钊，曹立新，阎景旺

中国科学院大连化学物理研究所

收稿日期:1996-02-28 修回日期:1996-02-28 出版日期:1996-02-28 发布日期:1996-02-28

Kinetic behavior of the Pt/YSZ solid electrolyte interface exposed to O_2+He mixture

Jiang Yi; Li Wenzhao; Cao Lixin; Yan Jingwang

(Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dailian 116023

Received:1996-02-28 Revised:1996-02-28 Published:1996-02-28 Online:1996-02-28

摘要/Abstract

摘要： 用循环伏安、线性扫描等电化学方法研究了Ｐｔ／ＹＳＺ固体电解质界面的电化学行为，发现氧在Ｐｔ上的电化学吸附过程是Ｔｅｍｋｉｎ吸附过程，吸附量随时间对数增加。吸附氧的阴极还原是不可逆的过程。通过研究获得吸附氧阴极还原过程的电荷传递系数、Ｔｅｍｋｉｎ系数等重要参数。

关键词: Pt电极, YSZ固体电解质, 电化学动力学

Abstract: Electrochemical behavior of the Pt/YSZ solid electrolyre interface has been investigated by cyclic voltammetry and linear potential sweep technique. It was found that the electrochemical adsorption of oxygen on the Pt surface follows the Temkin adsorption model. The amount of oxygen species increases logarithmically with time. Two oxygen species are electrochemically formed on the Pt surface. One is atomically adsorbed, the other probably subsurface oxygen or Pt oxide. The electrochemical reduction of adsorbed oxygen is kinetically irreverable. The cathodic peak potential is affected both by the potential sean rate and the amount of oxygen ahorbed on the surface. Kinetic parameters, such as, cathodic charge transfer coeffcient, Temkin parameter have been extracted.

Key words: Pt electrodes, YSZ solid electrolyte, Electrochemical kinetics

中图分类号:

O646

江义，李文钊，曹立新，阎景旺. Pt／YSZ固体电解质界面的电化学动力学研究[J]. 电化学（中英文）, 1996, 2(1): 32-40.

Jiang Yi; Li Wenzhao; Cao Lixin; Yan Jingwang. Kinetic behavior of the Pt/YSZ solid electrolyte interface exposed to O_2+He mixture[J]. Journal of Electrochemistry, 1996, 2(1): 32-40.

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https://electrochem.xmu.edu.cn/CN/Y1996/V2/I1/32

参考文献

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