Study on the corrosion of conductive polypyrrole
- 作者：Kai QiYubing QiuZhenyu ChenXingpeng Guo
- 会议时间：2012-09-16
- 关键词：Polypyrrole ; Cyclic voltammetry ; XPS ; Corrosion
- 作者单位：Kai Qi,Yubing Qiu(School of Chemistry and Chemical Engineering,Huazhong University of Science and Technology)Zhenyu Chen,Xingpeng Guo(School of Chemistry and Chemical Engineering,Huazhong University of Science and Technology;Hubei Key Laboratory of Materials Chemistry and Service Failure,Wuhan 430074,PR China)
- 母体文献：第十三届全国青年腐蚀与防护科技论文讲评会暨第十一届中国青年腐蚀与防护研讨会论文集
- 会议名称：第十三届全国青年腐蚀与防护科技论文讲评会暨第十一届中国青年腐蚀与防护研讨会
- 会议地点：武汉
- 主办单位：中国腐蚀与防护学会
- 语种：chi
摘要
In alkaline aqueous media the effects of environmental factors,electrochemical stimulation and doping anions on the corrosion behavior of conductive polypyrrole (PPy) films were studied using cyclic voltammetry (CV),fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) measurements.High concentration electrolyte,low dissolved O2 and low temperature are good for the PPy’s stability.Polarizing PPy film at a negative potential can inhibit its corrosion obviously.PPy films doped with large size counter anions show better corrosion resistance performance than those doped with small shaped counter ions.The possible mechanism involved in the PPy’s corrosion process was discussed.