Characterization of polypyrrole electropolymerized on different electrodes☆

Polypyrrole Coating on Zinc for Corrosion Prevention of Zinc-coated Steels

“…Other authors also presented the corrosion prevention of stainless steel by PANI coating [2][3][4] as well as PPy coating. 5,6) Since the conducting polymer coatings could be electrochemically formed on various metals, 7,8) they were applied to corrosion prevention of the metals of Cu, 9) Zn, 10) Al, 11) Ti, 12) CuNi. 13) As zinc is one of less noble metals, the oxidative PPy formation may not be easy, because the electrochemical oxidation induces anodic dissolution of zinc before the PPy formation.…”

The Electrochemical Synthesis and Corrosion Inhibitive Nature of Di N-Propyl Malonic Acid Doped Poly N –Methyl Aniline Coating On Stainless Steel

“…Most of the electrochemical polymerizations are carried out in non-aqueous media. The most suitable solvents currently in use include acetonitrile, benzonitrile, and tetrahydrofuran [45,[46][47][48][49][50][51][52][53]. Two corrosion protection mechanisms commonly associated with conducting polymer coatings are passivation and barrier effect.…”

Polypyrrole coating doped with dihydrogenophosphate ion to protect aluminium against corrosion in sodium chloride medium

“…However, some important results were meanwhile obtained by several researches in organic and aqueous media. [20][21][22][23][24][25][26][27][28][29] The PPy electrosynthesized on aluminium in aqueous medium is a bilayer-film composed by a barrier-type Al 2 O 3 and an electronically conducting PPy film. 22,28,29 ) migrate toward the aluminium electrode.…”