Comparison of the Electrochemical Reactivity of Electrodes Modified by Carbon Nanotubes with Different Sizes

Authors

Guo-feng YANG, Dept.of Chemistry,College of Life and Environment Science,Shanghai Normal University,Shanghai 200234,China;
Neng-qin JIA, Dept.of Chemistry,College of Life and Environment Science,Shanghai Normal University,Shanghai 200234,China;
Zhi-yong WANG, Dept.of Chemistry,College of Life and Environment Science,Shanghai Normal University,Shanghai 200234,China;

Corresponding Author

Neng-qin JIA

Abstract

The electrochemical activity of multi-walled carbon nanotubes(MWNTs) with different sizes,including four different MWNTs with the same length and different diameter,two different MWNTs with the same diameter and different length has been assessed and compared.The various MWNTs modified electrodes were prepared by immobilizing the suitable amount of MWNTs onto a glassy carbon electrode,and their voltammetric responses to ferricyanide,uric acid and dopamine were examined.The corresponding cyclic voltammetric data was showed that the electrochemical and electrocatalytic activities are depended on the nanotube length.The electrochemical reactivity of short MWNT(S-MWNT) is better than that of long MWNT(L-MWNT),which may be mainly attributed to the existence of the more open ends of the S-MCNT relative to L-MWNT.

Keywords

MCNTs, size effect, electrochemical reactivity, Uric acid, dopamine

DOI Link

https://doi.org/10.61558/2993-074X.1781

Publication Date

2007-02-28

Online Available Date

2007-02-28

Revised Date

2007-02-28

Received Date

2007-02-28

Recommended Citation

Guo-feng YANG, Neng-qin JIA, Zhi-yong WANG. Comparison of the Electrochemical Reactivity of Electrodes Modified by Carbon Nanotubes with Different Sizes[J]. Journal of Electrochemistry, 2007 , 13(1): 63-66.
DOI: 10.61558/2993-074X.1781
Available at: https://jelectrochem.xmu.edu.cn/journal/vol13/iss1/10