Properties of Metallized Polyo-toluidideMembrane Modified Electrode

Authors

Li-zong DAI, Coll. of Chem. and Chem. Engin., Xiamen Univ., State Key Lab. for Phy. Chem. of Solid Surfaces, Xiamen 361005, ChinaFollow
Yi-ting XU, Coll. of Chem. and Chem. Engin., Xiamen Univ., State Key Lab. for Phy. Chem. of Solid Surfaces, Xiamen 361005, China
Hui-huang WU, Coll. of Chem. and Chem. Engin., Xiamen Univ., State Key Lab. for Phy. Chem. of Solid Surfaces, Xiamen 361005, China

Corresponding Author

Li-zong DAI(lzdai@xmu.edu.cn)

Abstract

The platinum particles were electrodeposited on poly(o-toluidide), POT, modified electrode, and the surface configuration and crystal orientation of Pt particles were investigated by SEM and XRD. At the same time the oxidation of isopropanol on platinized POT modified electrode was studied. The results indicate that Pt particles deposite towards preferred-orientation; moreover the increase in polymer electroactivity due to proton doping affects the dimension and graininess of deposited Pt particles. At the metallized polymer electrode the oxidation of isopropanol can occur in POT electroactive potential region, however at the more positive than 0.70 V (SCE) potential where POT loses redox activity the electro-oxidation mainly occurrs on Pt particles. It follows that the polymer not only behaves as the support of Pt particles but also participates in the reaction. Such a “microheterogeneous catalysis system" needs to be described by a new model.

Keywords

Poly-o-toluidide, Electrodeposition of Pt, Electro-oxidation of isopropanol, Cheically modified electrodes

DOI Link

https://doi.org/10.61558/2993-074X.3246

Publication Date

2001-05-28

Online Available Date

2001-05-28

Revised Date

2001-05-20

Received Date

2001-01-14

Recommended Citation

Li-zong DAI, Yi-ting XU, Hui-huang WU. Properties of Metallized Polyo-toluidideMembrane Modified Electrode[J]. Journal of Electrochemistry, 2001 , 7(2): 161-166.
DOI: 10.61558/2993-074X.3246
Available at: https://jelectrochem.xmu.edu.cn/journal/vol7/iss2/8