화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.75, 178-186, July, 2019
DOI10.1016/j.jiec.2019.03.021  Export Citation
Fabrication and characterization of polypyrrole coatings by embedding antimony modified SnO2 nanoparticles
Zhihao Chen1, Yijie Jin1, Wenzhong Yang1, †, Bin Xu2, 3, †, Yun Chen1, Xiaoshuang Yin1, and Ying Liu1
  • 1College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 210009, China
  • 2Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection, Nanjing 210042, China
  • 3Sino-Japan Friendship Center for Environmental Protection, No. 1 Yu Hui Nan Road, Beijing, 10029, China
E-mail:,
Polypyrrole (PPy) coatings were successfully electrosynthesized on the carbon steel by embedding SnO2 and Sb-SnO2 nanoparticles (NPs). The associated structural, morphology, hydrophobic, physical properties, anti-corrosion and self-healing performance of these coatings were systematically studied by several tests. XRD results showed that SnO2 had a tetragonal rutile structure and the lattice parameters indicated that Sb ions were successful substituted into SnO2 lattice. The average size of SnO2 NPs was decreased by the incorporation of Sb-SnO2 NPs, which were found through TEM images. The contact angle test showed that the hydrophobic of PPy coatings was greatly enhanced by the incorporation of Sb- SnO2 NPs. SEM results revealed that Sb-SnO2/PPy coating exhibited a more compact and uniform surface than SnO2/PPy coating, hence the physical barrier effect was significantly strengthened. The electrochemical measurements confirmed the excellent anti-corrosion and self-healing ability of Sb- SnO2/PPy coating for a long immersion time in HCl solution. The superior anti-corrosion performance of Sb-SnO2/PPy coating was ascribed to the synergistic effects of the anodic protection combined with the self-healing effect, the excellent physical barrier effect with compact, smooth and hydrophobic coating surface as well as the formation of p-n junction with decreased charge transfer.
Keywords:Sb-SnO2 nanoparticles;Polypyrrole coating;Hydrophobicity;Self-healing;Physical properties;Corrosion
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