Suppression of corrosion study on polypyrrole/zinc oxide nanoparticle composites for rechargeable battery electrode materials

2019 2nd International Conference on Composite Materials Science and Technology

Thinnakornsutibutr, Nicharee^1 ; Suracharoenchaikul, Teeranun^1 ; Potiyaraj, Pranut^1 ; Pattananuwat, Prasit^1^2

Department of Materials Science, Faculty of Science, Chulalongkorn University, Bangkok

10330, Thailand^1

Research Unit of Advanced Materials for Energy Storage, Chulalongkorn University, Bangkok, Thailand^2

关键词: Content and structure;    Corrosion inhibition efficiency;    Electrochemical activities;    Electrode composites;    In-situ polymerization;    Linear polarization;    Oxide nanoparticles;    Ultrasound irradiation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/600/1/012007/pdf
DOI  :  10.1088/1757-899X/600/1/012007

来源: IOP

【 摘 要 】

polypyrrole/zinc oxide nanoparticle (PPy/ZnO) composites are successfully synthesized via in-situ polymerization by aiding of ultrasonic irradiation. The different ratio of PPy to ammonium persulfate (APS) at 1:0.5, 1:1 and 1:1.5 is used to control the amounts of PPy in composites. Scanning Electron Microscopy indicates the development of nano/microstructure of PPy with increasing the amount of APS. The surface electrochemical activity of ZnO/PPy anodic electrode is characterized by linear polarization and cyclic voltammetry (CV). The introduce of PPy onto ZnO surface with the appropriate content and structure can improve the anti-corrosion and charge performance of electrode composites. The synthesized ZnO/PPy electrode at PPy/APS ratio of 1:1 can yield the highest values of corrosion inhibition efficiency of 73.50 % in 7 M KOH aqueous solution.