Molybdate‐doped copolymer coatings for corrosion prevention of stainless steel | Zendy

Li Feng | Zendy; Li Guoxi | Zendy; Zeng Jing | Zendy; Gao Guihong | Zendy

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Molybdate‐doped copolymer coatings for corrosion prevention of stainless steel

Author(s) -

Li Feng,

Li Guoxi,

Zeng Jing,

Gao Guihong

Publication year - 2014

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.40602

Subject(s) - materials science , copolymer , dielectric spectroscopy , cyclic voltammetry , molybdate , polyaniline , linear sweep voltammetry , corrosion , coating , oxalic acid , polypyrrole , passivation , electrochemistry , inorganic chemistry , nuclear chemistry , composite material , metallurgy , polymer , chemistry , electrode , polymerization , layer (electronics)

The polypyrrole and polyaniline copolymer coating (PPy‐PAni) and PPy‐PAni doped with sodium molybdate copolymer coating (PPy ‐ PAni ‐ MoO 4 2 −) were synthesized on stainless steel by cyclic voltammetry. The effect of molybdate on the passivation of stainless steel was investigated by linear sweep voltammetry in 0.2 mol L −1 of oxalic acid. The corrosion prevention performances of these copolymer coatings for stainless steel were investigated by linear sweep voltammetry, electrochemical impedance spectroscopy in 1 mol L −1 of sulfuric acid, and potentiodynamic polarization in 0.1 mol L −1 of hydrochloric acid. Copolymer coating doped with molybdate could accelerate the formation of the passive oxide film and have better corrosion prevention efficiencies than PPy‐PAni coating on stainless steel. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 40602.

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