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

Authors

Yi Jiang, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dailian 116023;
Wenzhao Li, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dailian 116023;
Lixin Cao, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dailian 116023;
Jingwang Yan, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dailian 116023;

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.

Keywords

Pt electrodes, YSZ solid electrolyte, Electrochemical kinetics

DOI Link

https://doi.org/10.61558/2993-074X.1326

Publication Date

1996-02-28

Online Available Date

1996-02-28

Revised Date

1996-02-28

Received Date

1996-02-28

Recommended Citation

Yi Jiang, Wenzhao Li, Lixin Cao, Jingwang Yan. Kinetic behavior of the Pt/YSZ solid electrolyte interface exposed to O_2+He mixture[J]. Journal of Electrochemistry, 1996 , 2(1): 32-40.
DOI: 10.61558/2993-074X.1326
Available at: https://jelectrochem.xmu.edu.cn/journal/vol2/iss1/3

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