Study on the Electrogeneration and Properties of Superoxide Ion in Aprotic Media by Using Carbon Nanotubes Powder Microelectrode

Authors

Ying-liang WEI, Department of Material and Chemical Engineering,Zhengzhou University of Light Industry,Zhengzhou 450052,Henan,China,;Department of Environment and Chemical Engineering,Luoyang University,Luoyang 471023,Henan,China;
Chen SHAO, Department of Material and Chemical Engineering,Zhengzhou University of Light Industry,Zhengzhou 450052,Henan,China,;
Hui FENG, Department of Material and Chemical Engineering,Zhengzhou University of Light Industry,Zhengzhou 450052,Henan,China,;

Abstract

Multi-wall carbon nanotubes are filled in the cavity at the tip of a microelectrode to form a carbon nanotubes powder microelectrode(CNTs-PME).The CNTs-PME is used to study the electrochemical reduction of oxygen in aprotic media.It is a nearly reversible redox process of the O2/O·-2 couple at the CNTs-PME in the dimethyl sulfoxide(DMSO)solution.The heterogeneous electron transfer rate constant(ks)can be measured by steady-state voltammogram and the result is 9.8 10-3cm /s.As a weak oxidant,the reaction of O·-2 with epinephrine was studied by cyclic voltammetry.Additionally,the reaction of O·-2 with benzoic acid was also discussed in detail.

Keywords

multi-wall carbon nanotubes, powder microelectrode, superoxide ion, cyclic voltammetry

DOI Link

https://doi.org/10.61558/2993-074X.1809

Publication Date

2007-05-28

Online Available Date

2007-05-28

Revised Date

2007-05-28

Received Date

2007-05-28

Recommended Citation

Ying-liang WEI, Chen SHAO, Hui FENG. Study on the Electrogeneration and Properties of Superoxide Ion in Aprotic Media by Using Carbon Nanotubes Powder Microelectrode[J]. Journal of Electrochemistry, 2007 , 13(2): 207-211.
DOI: 10.61558/2993-074X.1809
Available at: https://jelectrochem.xmu.edu.cn/journal/vol13/iss2/19