Electrochemical synthesis and redox behaviour of polypyrrole coatings on copper in salicylate aqueous solution

Cascalheira, A.C.; Aeiyach, S.; Lacaze, P.C.; Abrantes, L.M.

doi:10.1016/s0013-4686(03)00295-0

Cited by 91 publications

(59 citation statements)

References 36 publications

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“…Passivation of the electrode and oxidation of the monomer can be achieved during the same cycle, as already observed by Lacaze and co-workers [27]. They used cyclic voltammetry, AFM, XPS and FT-IR to characterise these polymers [26,[28][29][30][31] but did not report on the corrosion protection ability of the films. Since the coating materials obtained from this new process showed promising results that could lead to industrial applications in the corrosion protection of oxidisable substrates [27], we further investigated the properties of these polymer coatings.…”

Section: Introductionmentioning

confidence: 78%

“…This corresponds to dissolution of copper, as discussed by Lacaze and co-workers who fully characterised this process [26,30]. Dissolution of copper during this first cycle leads to the deposition of a copper-salicylate layer which hinders further copper dissolution but allows easy deposition of the polypyrrole [26]. The significant increase in the current observed at higher applied potentials, from about 0.50 to 0.65 V vs SCE, corresponds to the oxidation of the pyrrole monomer.…”

Section: Formation Of the Polypyrrole Salicylate Coatingmentioning

confidence: 88%

“…In the first cycle, a broad peak centred around 0.16 V vs SCE is observed. This corresponds to dissolution of copper, as discussed by Lacaze and co-workers who fully characterised this process [26,30]. Dissolution of copper during this first cycle leads to the deposition of a copper-salicylate layer which hinders further copper dissolution but allows easy deposition of the polypyrrole [26].…”

Section: Formation Of the Polypyrrole Salicylate Coatingmentioning

confidence: 96%

“…Other anions suitable for the electrodeposition of polypyrrole on copper include citrate, acetate and benzoate [24], phosphate [25], saccharinate [14] and salicylate [26].…”

Section: Introductionmentioning

confidence: 99%

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Corrosion protection of copper using polypyrrole electrosynthesised from a salicylate solution

Annibaldi¹,

Rooney²,

Breslin³

2012

Corrosion Science

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a b s t r a c tReproducible electrodeposition of adherent and homogeneous polypyrrole was achieved on copper from a salicylate solution. The process was facilitated by the formation of a passive layer which inhibited further dissolution of copper but was sufficiently conducting to allow electropolymerisation. The deposited polymer adopted the characteristic cauliflower morphology. The corrosion protection properties of the coating were assessed using polarisation plots, Tafel analysis, OCP measurements and electrochemical impedance spectroscopy in 0.1 and 0.6 M (3.5% w/v) NaCl solutions. The polymer coating was effective in protecting copper and was stable for periods exceeding 2 weeks of immersion in 0.6 M NaCl.

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Section: Introductionmentioning

confidence: 78%

Section: Formation Of the Polypyrrole Salicylate Coatingmentioning

confidence: 88%

Section: Formation Of the Polypyrrole Salicylate Coatingmentioning

confidence: 96%

“…Other anions suitable for the electrodeposition of polypyrrole on copper include citrate, acetate and benzoate [24], phosphate [25], saccharinate [14] and salicylate [26].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Corrosion protection of copper using polypyrrole electrosynthesised from a salicylate solution

Annibaldi¹,

Rooney²,

Breslin³

2012

Corrosion Science

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“…In recent times, conducting polymers have received considerable attention as corrosion protective coatings for oxidizable metals. It is now well-known that electrochemical polymerization is an effortless and most suitable method for corrosion protection [13][14][15][16] . The present work deals with the electro polymerization of PICA coating on LN SS in 0.5 M H 2 SO 4 medium.…”

Section: Introductionmentioning

confidence: 99%

Anti-Corrosion Application of Poly(indole-5-carboxylic Acid) Coating on Low Nickel Stainless Steel in Acidic Medium

2016

Chem Sci Trans

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Poly(indole-5-carboxylic acid) (PICA) has been synthesized by electrochemical polymerization technique from different concentration of poly(indole-5-carboxylic acid) using lithium per chloride as oxidation agent at different scan rate. The as-synthesized PICA was characterized using Fourier transform infrared spectroscopy (FT-IR) and Proton nuclear magnetic resonance spectroscopy ( 1 H-NMR). Thermal analysis of the PICA was performed by Thermo gravimetric analysis (TGA). The corrosion protection performance of low nickel stainless steel (LN SS) specimens coated with 0.1 M concentration of PICA was investigated in 0.5 M H 2 SO 4 medium using potentiodynamic polarization and electrochemical impedance spectroscopic (EIS) methods. The morphological properties of the polymer were characterized by scanning electron microscopy (SEM). The as-synthesized PICA has been used in order to achieve adherent, as well as environmentally preferential good anti-corrosive coating. Electrochemical corrosion tests and surface analysis results evidently showed that PICA coating served as a stable mass matrix on LN SS against corrosion. It was also revealed that the coating of PICA at 0.1V scan rate with 0.1M indole-5-carboxylic acid exhibited the best corrosion resistance among all concentrations.

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Recent Trends in Polypyrrole Electrochemistry, Nanostructuration, and Applications

Audebert

2010

Electropolymerization

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IntroductionThis chapter covers recent original research on polypyrrole, especially that pertaining to the last four or five years. It focuses on the synthesis and electrochemical properties of polypyrrole and polypyrrole derivatives, at the same time describing some interesting chemical syntheses and related composites. Physicochemical properties and related applications are mainly discussed, with a brief mention of the field of related biosensors and bioactive polymers. In fact, a more detailed discussion on these topics would make this article too long; moreover, there are several chapters in this book that are dedicated to this area.Since its original discovery by Diaz et al. [1a], polypyrrole progressively tends to become an old polymer. Meanwhile, the trend of the whole polypyrrole related research field follows its way, including many more technical progresses and focusing more on precise applications. However, it is possible to distinguish major and minor fields within this area. While research on new monomers has slowed down, investigations of new polymerization methods, both chemically and electrochemically, are still being carried out. The field of electrochemistry, for example, has seen a notable breakthrough in the use of ionic liquids for electrochemical synthesis, and there is a clear increase in research in the direction of syntheses of all kinds of prestructured media such as templates, emulsions, gels, nanoparticles arrays, membranes, and so on. After the initial excitement on research in the field of accumulators, enthusiasm in this area of application has dwindled; however, related applications such as supercapacitors continue to stimulate a steady amount of research work. Furthermore, the main focus of scientists is now on applications, especially on the design of polypyrrole derivatives fitted to specific purposes.Interesting reviews covering this field have appeared in recent years [1b,c]. These will be referred to in the chapter.This chapter is divided into three parts. The first part discusses the advances in polypyrrole synthesis, including new original monomers that appeared in the last five years, new polymerization procedures, and composites; a few recent fundamental studies on redox processes in polypyrrole are also mentioned. The Electropolymerization: Concepts, Materials and Applications. Edited by Serge Cosnier and Arkady Karyakin

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Electrochemical synthesis and redox behaviour of polypyrrole coatings on copper in salicylate aqueous solution

Cited by 91 publications

References 36 publications

Corrosion protection of copper using polypyrrole electrosynthesised from a salicylate solution

Corrosion protection of copper using polypyrrole electrosynthesised from a salicylate solution

Anti-Corrosion Application of Poly(indole-5-carboxylic Acid) Coating on Low Nickel Stainless Steel in Acidic Medium

Recent Trends in Polypyrrole Electrochemistry, Nanostructuration, and Applications

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