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Vol. 27 No. 7 (2015): Vol 27 Issue 7, 2015

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Electrocatalytic Activity of Carbon Paste Electrode Modified with Porphyrin and SWCNT for Oxygen Reduction Reaction

https://doi.org/10.14233/ajchem.2015.17915
Wei Yin
Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, College of Chemistry and Chemical Engineering, Chongqing Uinversity, Chongqing 400044, P.R. China
Han Zhou
Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, College of Chemistry and Chemical Engineering, Chongqing Uinversity, Chongqing 400044, P.R. China
Qi Li
Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, College of Chemistry and Chemical Engineering, Chongqing Uinversity, Chongqing 400044, P.R. China
Shihuan Lv
Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, College of Chemistry and Chemical Engineering, Chongqing Uinversity, Chongqing 400044, P.R. China
Xiaofei Liu
Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, College of Chemistry and Chemical Engineering, Chongqing Uinversity, Chongqing 400044, P.R. China
Huanbao Fa
Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, College of Chemistry and Chemical Engineering, Chongqing Uinversity, Chongqing 400044, P.R. China
Changguo Chen
Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, College of Chemistry and Chemical Engineering, Chongqing Uinversity, Chongqing 400044, P.R. China

Corresponding Author(s) : Changguo Chen

cgchen@cqu.edu.cn; yinweicqu@163.com

Asian Journal of Chemistry, Vol. 27 No. 7 (2015): Vol 27 Issue 7, 2015

Abstract

A carbon paste modified electrode (CPME) with 5,10,15,20-tetraphenylporphyrinato cobalt(II) (CoTPP) and single walled carbon nanotube (SWCNT) was prepared by simple, rapid and effective method. Its electrochemical catalytic behaviour for oxygen was investigated in oxygen-saturated 0.1 mol/L Na2HPO4-NaH2PO4 buffer solution (PBS) (pH 7). By using rotating disk electrode, the analysis was carried out that oxygen reduction on CP/CoTPP/SWCNT in 0.1 mol/L PBS (pH 7) is through two-electron pathway and the possible catalytic mechanism was discussed. The CPME was very stable and exhibited high tolerance to methanol. It is suggested that CoTPP and SWCNT modified carbon paste modified will offer a possibility of developing a sensitive method for the determination of dissolved oxygen.

Keywords

Carbon paste modified electrode Oxygen reduction Porphyrin SWCNT
Yin, W., Zhou, H., Li, Q., Lv, S., Liu, X., Fa, H., & Chen, C. (2015). Electrocatalytic Activity of Carbon Paste Electrode Modified with Porphyrin and SWCNT for Oxygen Reduction Reaction. Asian Journal of Chemistry, 27(7), 2457–2459. https://doi.org/10.14233/ajchem.2015.17915
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