Electrochemical synthesis of polypyrrole films on copper electrodes in acidic and neutral aqueous media

Electroactive Conducting Polymers for the Protection of Metals against Corrosion: from Micro‐ to Nanostructured Films

“…water). Protection properties were later reported by Kousik et al [118] for thick (%20 mm) PT films electrodeposited on iron from a solution of thiophene in acetonitrile. This explains why polythiophene (PT) was first electrodeposited on iron using bis-thiophene in mixed aqueous-organic media [97], and with thiophene in organic media [98,99].…”

“…No serious difficulty was found, and electrolytes used previously on iron, such as oxalic acid [115,116], salicylates [117,118], and tartrate [119] were found suitable for PPy electrodeposition on copper and its alloys; aqueous phosphate solutions were also found to provide highly adherent and homogenous films [120]. No serious difficulty was found, and electrolytes used previously on iron, such as oxalic acid [115,116], salicylates [117,118], and tartrate [119] were found suitable for PPy electrodeposition on copper and its alloys; aqueous phosphate solutions were also found to provide highly adherent and homogenous films [120].…”

Electrodeposition of Conducting Polymers on Copper in Nonaqueous Media by Corrosion Inhibition

“…[6][7][8][9] While the electropolymerization of CPs has been carried out mostly on noble metal electrodes (Pt, Au, glassy carbon), only a little progress has been achieved in the deposition on less noble substrates such as steel, Al, and Cu. [10][11][12][13][14][15][16] This is because the anodic electrodeposition on the active metal is hampered by the metal oxidation that competes with the oxidation of the polymer monomer. Meanwhile, some appropriate anions (oxalate, tartrate, salicylate) have been revealed to allow deposition of polypyrrole (PPy) films on steel and Cu electrodes.…”

“…[10][11][12][13][14][15][16] The protective layer that the anions form on the electrode surface was claimed to prevent massive dissolution of metal substrates. [14][15][16] Employing a redox mediator such as Trion (4,5-dihydroxy-1,3-benzenedisulfonic acid) has been reported to lower the deposition potential and offer an effective way to prepare PPy film on Al and Al alloy. 17,18) All the previous strategies, however, are based on aqueous media and are not applicable to poly(3,4-ethylenedioxythiophene) (PEDOT) and polythiophene (PTh).…”

Electrodeposition and characterization of polypyrrole films on copper

“…Several works have appeared [6,[23][24][25][26][27][28] dealing with the protection of corrosion susceptible metals by electrochemically generated PPy. There are some reports in the literature [29][30][31] on the deposition of PPy on copper at various aqueous and no-aqueous media. However, comparatively few studies have been devoted to the study of copper protection.…”