Effect of Ti/PbO₂ Electrodes Doped with Different Elements on Electrocatalytic Oxidation Characteristics of Phenol

Authors

Xiao-lei LIU, College of Chemistry, Jilin University, Changchun?130012, Jilin, China;
Yuan-yuan DAN, College of Biological and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang?212003, Jiangsu, China;
Hai-yan LU, College of Chemistry, Jilin University, Changchun?130012, Jilin, China;
Hai-bo LIN, College of Chemistry, Jilin University, Changchun?130012, Jilin, China;College of Environmental and Resource Sciences, Jilin University, Changchun?130012, Jilin, China;Follow
Ming-li Ouyang, College of Chemistry, Jilin University, Changchun?130012, Jilin, China;
Chuan-jun YUN, 1. School of Chemistry & Environment，South China Normal University,Guangzhou Guangdong 510006, China; ; 3. Key Lab of Technology on Electrochemical Energy Storage and Power Generation in Guangdong Universities, Guangzhou Guangdong 510631, China;

Corresponding Author

Hai-bo LIN(lhb910@jlu.edu.cn)

Abstract

Three types of electrodes, namely, Ti/PbO₂, F-doped PbO₂ (Ti/PbO₂-F) and nano-Co₃O₄-doped PbO₂ (Ti/PbO₂+Nano-Co₃O₄) electrodes, were prepared by electro-deposition method on the Ti substrate with the interlayer of SnO₂-Sb₂O₅. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to study the compositions, structures and film morphologies of the electrodes. Electrocatalytic oxidation characteristics to phenol on the prepared electrodes were investigated by electrochemical method. The experimental results showed that compared with the Ti/PbO₂ electrode, the potentials of oxygen evolution on the Ti/PbO₂+F electrode apparently shifted more positively, while those of Ti/PbO₂+Nano-Co₃O₄ electrode shifted negatively after the oxidation of phenol took place. This provided experimental evidence for the existence of some transient intermediates which underwent particularly fast reactions, i.e., the reaction of water molecule with phenol occurred before the dissociation of water molecule, which was more beneficial to the transformation and degradation of phenol.

Graphical Abstract

Keywords

PbO2, electrode, doped, electrocatalytic oxidation, phenol

DOI Link

https://doi.org/10.61558/2993-074X.2098

Publication Date

2013-02-28

Online Available Date

2012-07-05

Revised Date

2012-06-30

Received Date

2012-06-04

Recommended Citation

Xiao-lei LIU, Yuan-yuan DAN, Hai-yan LU, Hai-bo LIN, Ming-li Ouyang, Chuan-jun YUN. Effect of Ti/PbO₂ Electrodes Doped with Different Elements on Electrocatalytic Oxidation Characteristics of Phenol[J]. Journal of Electrochemistry, 2013 , 19(1): 59-64.
DOI: 10.61558/2993-074X.2098
Available at: https://jelectrochem.xmu.edu.cn/journal/vol19/iss1/5