Electrochemical synthesis and characterization of N-substituted polypyrrole derivatives on nickel

Lallemand, Fabrice; Auguste, Denis; Amato, Claire; Hevesi, L.; Delhalle, Joseph; Mekhalif, Zineb

doi:10.1016/j.electacta.2006.12.010

Cited by 50 publications

(31 citation statements)

References 31 publications

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“…To be successful, more attention must spotlight the two types of interfaces, the first between the thiol (or selenol) and the metal and the second between the Y-end function and the polymer. This methodology is ongoing work in the laboratory concerning nickel and has already established its efficiency for other metals such as platinum, titanium and aluminum [2,[5][6][7]. Similar positive behavior as with SDDS is expected.…”

Section: Introductionsupporting

confidence: 55%

“…This explains why PEDOT appears to be among the most stable organic conducting polymers currently available. Several studies have shown that conducting polymers such as polythiophene and derivatives could be easily electropolymerized in water and aqueous micellar solution on platinum [10,16,17], copper [18], iron, aluminum and steel electrodes [7,16,17]. Water constitutes an ideal solvent for all applications, because of lack of toxicity, inexpensive product and non-pollutant properties.…”

Section: Introductionmentioning

confidence: 99%

“…The 3,4-ethylene-dioxythiophene (EDOT) monomer is of special importance owing to the outlook to produce polymer with linear chains and less defects due to the blocking of the 3, 4 positions of thiophene ring [7][8][9][10][11][12][13][14][15]. The introduction of the ethylenedioxy bridge lowers also the oxidative doping potential of the polymer and stabilizes its doped state.…”

Section: Introductionmentioning

confidence: 99%

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Electrochemical elaboration of adherent poly(3,4-ethylene-dioxythiophene) films and hybride nanowires on nickel

Lallemand

Plumier

Delhalle

et al. 2008

Applied Surface Science

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Section: Introductionsupporting

confidence: 55%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Electrochemical elaboration of adherent poly(3,4-ethylene-dioxythiophene) films and hybride nanowires on nickel

Lallemand

Plumier

Delhalle

et al. 2008

Applied Surface Science

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“…N-and beta-substituted polypyrroles have been synthesised with the strategic aim of increasing their functionality, [44][45][46][47][48] enhancing solubility and processability, [49][50][51][52] increasing adhesion to substrates 53,54 and producing novel composite polymers.…”

Section: 43mentioning

confidence: 99%

Controlling the electro-mechanical performance of polypyrrole through 3- and 3,4-methyl substituted copolymers

2015

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Conducting polymers such as polypyrrole are biocompatible materials used in bioelectronic applications and microactuators for mechanobiology and soft microrobotics. The materials are commonly electrochemically synthesised from an electrolyte solution comprising pyrrole monomers and a salt, which is incorporated as the counter ion. This electrosynthesis results in polypyrrole forming a threedimensional network with extensive cross-linking in both the alpha and beta positions, which impacts the electro-mechanical performance. In this study we adopt a 'blocking strategy' to restrict and control cross-linking and chain branching through beta substitution of the monomer to investigate the effect of crosslinking on the electroactive properties. Methyl groups where used as blocking groups to minimise the impact on the pyrrole ring system. Pyrrole, 3-and 3,4-methyl substituted pyrrole monomers were electro-polymerised both as homo-polymers and as a series of co-polymer films. The electroactive performance of the films was characterised by measuring their electrochemical responses and their reversible and non-reversible film thickness changes. This showed that altering the degree of crosslinking through this blocking strategy had a large impact on the reversible and irreversible volume change. These results elaborate the importance of the polymer structure in the actuator performance, an aspect that has hitherto received little attention.

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“…Nickel and its alloys exhibit excellent corrosion resistance in aqueous aggressive environments, which is attributed to the ability of nickel to form a stable passive film on its surface [1]. Among alternative corrosion inhibitors, organic compounds containing polar functions with nitrogen, oxygen, sulfur atoms in conjugated system have been reported as effective inhibitors of nickel corrosion [2][3][4][5][6]. Their inhibitive action is connected with several factors, including the structure and charge distribution of the molecule, the number and types of adsorption sites and the nature of interaction between the molecule and the metal surface [7].…”

Section: Introductionmentioning

confidence: 99%

Effect of Some Analytical Organic Indicators on the Corrosion of Nickel in Carbonate Solution

Abdallah¹,

Abdel-Waneess²,

Assi³

2009

Port. Electrochim. Acta

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The effect of some analytical organic indicators, e.g. methyl red, methyl orange and methyl violet, on the corrosion of nickel electrode in 0.1 M K 2 CO 3 was studied using galvanostatic and potentiodynamic anodic polarization techniques. The percentage inhibition efficiency was found to increase with increasing concentration of these compounds. The inhibitive action of these compounds is due to their adsorption on the nickel surface, making a barrier to mass and charge transfer, following Freundlich isotherm. The inhibition efficiency decreases in the order: methyl red > methyl orange > methyl violet. It was found that the addition of the chloride, bromide, iodide and thiosulfate ions accelerates the pitting corrosion of nickel in 0.1 M K 2 CO 3 solutions by shifting the pitting potential to more negative direction. The addition of these analytical organic compounds protects the nickel against pitting corrosion in bromide containing solution.

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Electrochemical synthesis and characterization of N-substituted polypyrrole derivatives on nickel

Cited by 50 publications

References 31 publications

Electrochemical elaboration of adherent poly(3,4-ethylene-dioxythiophene) films and hybride nanowires on nickel

Electrochemical elaboration of adherent poly(3,4-ethylene-dioxythiophene) films and hybride nanowires on nickel

Controlling the electro-mechanical performance of polypyrrole through 3- and 3,4-methyl substituted copolymers

Effect of Some Analytical Organic Indicators on the Corrosion of Nickel in Carbonate Solution

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