Electrodeposition and characterization of polypyrrole films on copper

Sharifirad, Meysam; Omrani, Abdollah; Rostami, Abbas Ali; Khoshroo, Maryam

doi:10.1016/j.jelechem.2010.05.005

Cited by 64 publications

(34 citation statements)

References 45 publications

(48 reference statements)

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“…Sharifirad et al (2010) prepared PPy on Cu in three aqueous media (citric acid: CA, sodium acetate: SA and sodium benzoate: SB) and recorded their UV-visible specta. The UV spectra of PPy/Cu in CA showed two absorption peaks at 295 and 460 nm, assigned to the π-π* transition and to the formation of perninfreaniline form (PB) and the spectra of PPy/Cu synthesized in SA and SB indicated a shoulder respectively at 360 and 350 nm, which was assigned to the formation of polybenzoic salt.…”

Section: Infra Red (Ir)/raman/uv-visible Absorption Spectroscopymentioning

confidence: 99%

Polypyrrole Composites: Electrochemical Synthesis, Characterizations and Applications

Singh¹,

Madhu²,

Awasthi³

2011

Electropolymerization

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Section: Infra Red (Ir)/raman/uv-visible Absorption Spectroscopymentioning

confidence: 99%

Polypyrrole Composites: Electrochemical Synthesis, Characterizations and Applications

Singh¹,

Madhu²,

Awasthi³

2011

Electropolymerization

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“…Na literatura são verificados relatos do uso do polipirrol para a determinação de diversas espécies de interesse, como por exemplo, nitrato [6] , cloreto [7] , perclorato [8] , dipirona [9] e sacarina [10] . A preparação dos filmes de polipirrol dopados pode ser realizada sobre as mais diversas superfícies eletródicas, como cobre [11] e platina [12] , empregando diferentes métodos eletroquímicos como, por exemplo, procedimentos potenciodinâmico, potenciostático e galvanostático [13] …”

Section: Introductionunclassified

Filmes de polipirrol aplicados no desenvolvimento de eletrodos descartáveis seletivos a íons fluoreto

et al. 2014

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Resumo: O presente manuscrito descreve o desenvolvimento de um sensor descartável sensível e seletivo baseado em filmes de polipirrol dopados (PPy) para determinação íons fluoreto. Os íons fluoretos foram incorporados na matriz PPy durante a polimerização eletroquímica realizada em condições galvanostáticas em um eletrodo compósito etileno vinil acetato e negro de fumo. Parâmetros experimentais envolvidos na preparação de película PPy tais como densidade de corrente elétrica, carga elétrica, o pH e a concentração de eletrólito foram otimizados de forma a maximizar a resposta potenciométrica. A resposta do sensor para íons de flúor foi linear no intervalo de concentração de 1,00 × 10 -5 a 1,08 × 10 -2 mol L -1, com uma inclinação de ~ 40 mV / pF e foi estável suficiente para várias determinações. O método foi aplicado com sucesso na determinação de íons fluoreto em amostras comerciais farmacêuticas. Os resultados demonstraram que o sensor proposto pode ser utilizado como uma alternativa interessante aos métodos analíticos tradicionais para determinação de íons fluoreto. Palavras-chave: Filmes de polipirrol, íons fluoreto, eletrodos íon-seletivo, eletrodo compósito. Polypyrrole Films Applied to Development of Disposable Ion-selective Electrode for Fluoride Ions DeterminationAbstract: This manuscript describes the development of a sensitive and selective disposable potentiometric sensor based on doped polypyrrole films (PPy) for fluoride ions determination. The fluoride ions were incorporated in the PPy matrix during electrochemical polymerization under galvanostatic conditions on a composite electrode of ethylene vinyl acetate and black carbon. Experimental parameters involved in PPy film preparation, such as electric current densities, electric charge, pH and electrolyte concentration, were optimized in order to maximize the potentiometric response. The sensor response for fluoride ions was linear in the concentration range of 1.00 × 10 -5 to 1.08 × 10 -2 mol L -1 , with a slope of ~40 mV/pF, and it was sufficiently stable for several determinations. The method was successfully applied in the determination of fluoride ions in pharmaceutical commercial samples. Results demonstrated that the proposed sensor can be used as an interesting alternative to traditional analytical methods for fluoride ions. Keywords: Polypyrrole films, fluoride ions, ions-selective electrode, composite electrode. IntroduçãoO desenvolvimento de sensores eletroquímicos vem sendo amplamente explorado nos últimos anos, devido a características apresentadas por estes dispositivos tais como: baixos limites de detecção, alta seletividade e estabilidade [1] . Dentre as diversas possibilidades de resposta dos sensores eletroquímicos, podemos destacar os potenciométricos devido à simplicidade operacional e o baixo custo. Destaque para os eletrodos íon-seletivo (ISE) de membrana que permitem a determinação dos mais diversos analitos com alta seletividade, baixos limites de detecção e poucos efeitos de interferência da matriz [2] . O uso de polímeros...

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“…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%

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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Electrodeposition and characterization of polypyrrole films on copper

Cited by 64 publications

References 45 publications

Polypyrrole Composites: Electrochemical Synthesis, Characterizations and Applications

Polypyrrole Composites: Electrochemical Synthesis, Characterizations and Applications

Filmes de polipirrol aplicados no desenvolvimento de eletrodos descartáveis seletivos a íons fluoreto

Corrosion protection of copper using polypyrrole electrosynthesised from a salicylate solution

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