Electrochemical Activities of Oxygen-Doped Carbon Surface for V(IV)/V(V) Redox Couple

Authors

Huan ZHANG
Lin-Lin QIN
Yi-Ning SHI
Ming-Sen ZHENG
Quan-Feng DONG
Zhao-Wu TIAN

Corresponding Author

Quan-Feng DONG(qfdong@xmu.edu.cn);Zhao-Wu TIAN

Abstract

Graphite plate electrodes were treated with oxygen plasma and doped with oxygen as well as oxygen functional groups. With the treatment, the activities of graphite plate electrodes toward VO²⁺/VO₂⁺ redox reactions were improved. FT-IR and EDS analysis results indicated that oxygen functional groups were introduced to the surface of graphite plates after oxygen plasma treatment. In this paper, the graphite plate treated for 20 min showed the highest activity. The average charge efficiency reached 91%, suggesting an increase of 19%, compared with that of the untreated graphite plate under a current density of 8 mA·cm^-2.

Graphical Abstract

Keywords

positive electrode of all-vanadium, oxygen plasma, electrochemical activity

DOI Link

https://doi.org/10.61558/2993-074X.2944

Publication Date

2013-04-28

Online Available Date

2012-05-15

Revised Date

2012-05-10

Received Date

2012-04-30

Recommended Citation

Huan ZHANG, Lin-Lin QIN, Yi-Ning SHI, Ming-Sen ZHENG, Quan-Feng DONG, Zhao-Wu TIAN. Electrochemical Activities of Oxygen-Doped Carbon Surface for V(IV)/V(V) Redox Couple[J]. Journal of Electrochemistry, 2013 , 19(2): Article 15.
DOI: 10.61558/2993-074X.2944
Available at: https://jelectrochem.xmu.edu.cn/journal/vol19/iss2/15