Complexation of poly(pyrrole-EDTA like) film modified electrodes: Application to metal cations electroanalysis

Heitzmann, Marie; Bucher, Christophe; Moutet, Jean‐Claude; Pereira, Eduardo; Rivas, Bernabé L.; Royal, Guy; Saint‐Aman, Eric

doi:10.1016/j.electacta.2006.09.041

Cited by 76 publications

(50 citation statements)

References 23 publications

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“…As illustrated in Fig. 5, SWV reveals a distinctive peak at −168 mV, associating with the oxidization of Cu 0 /Cu 2+ on a PPy-GGH nanoarray electrode [41]. The peak current from SWV is proportional to the amount of copper ions bound to the PPy-GGH nanoarray electrode surface.…”

Section: Electrochemical Performance Of Ppy-ggh Nanoarray Electrodementioning

confidence: 94%

“…5. Following the capture step, the modified electrode was transferred into a copper ion-free buffer (50 mM ammonium acetate, 50 mM NaCl, pH 7.0) for detection of Cu 2+ where the captured metal ions on the electrode surface were reduced before recording the stripping current using SWV [41]. The overoxidized PPy could avoid its large background current that may hinder an accurate determination of a SWV peak current arising from oxidation of Cu 0 in the polymer matrix [5].…”

Section: Electrochemical Performance Of Ppy-ggh Nanoarray Electrodementioning

confidence: 99%

See 1 more Smart Citation

Functionalized polypyrrole nanotube arrays as electrochemical biosensor for the determination of copper ions

Lin

Ma³

et al. 2012

Analytica Chimica Acta

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Section: Electrochemical Performance Of Ppy-ggh Nanoarray Electrodementioning

confidence: 94%

Section: Electrochemical Performance Of Ppy-ggh Nanoarray Electrodementioning

confidence: 99%

Functionalized polypyrrole nanotube arrays as electrochemical biosensor for the determination of copper ions

Lin

Ma³

et al. 2012

Analytica Chimica Acta

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“…Electrochemical stripping analysis was recognized as an efficient tool for simultaneous monitoring of heavy metals [23]. The scope of sensing tools has been developed significantly for simultaneous and selective trace quantification of heavy metals via appropriate surface modifications, for example by the incorporation of bismuth film [24], boron-doped diamond [25], polypyrrole [26], poly(3,4-diaminoterthiophene) [27] and polyaniline [28].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and surface characterization of poly(4-aminodiphenylamine) film modified electrode and its application for lead and cadmium determination

Al-Hinaai

Al-Harthi

Khudaish

2014

SQU Journal for Science

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Poly(4-aminodiphenylamine), Padpa, film was synthesized electrochemically on a glassy carbon electrode by potentiodynamic repetitive cycling of 4-aminodiphenylamine (4-adpa) in 1.0 M HCl. The mechanistic steps involved the oxidation of the protonated monomer to diimine species followed by its dimerization to form the mono-charged radical intermediate, which was considered as the initiation step for the progress of polymerization. The electrochemical properties and surface morphology of the film modified electrode were characterized using electrochemical and various surface scanning techniques. The XPS data demonstrated the existence of =N bonding responsible for polymer formation, while the AFM image revealed a uniform and symmetrical fiber structure with low energy dissipation. The modified electrode was primarily applied as an environmental sensor for the simultaneous and selective determination of Cd 2+

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“…[10][11][12][13] Phenyl allyl ethers derived from aromatic phenols can be easily electrochemically polymerized on carbon electrodes to produce a modified electrode with good mechanical and chemical stability. 6,[14][15][16][17][18][19] The electropolymerization of the monomer to form this type of film can be performed by doing scans within a potential interval less positive than the oxidation potential of the functional group to preserve the key moiety.…”

Section: Introductionmentioning

confidence: 99%

“…These substrates were chosen because of their structural variety and because most of them have been previously studied in homogeneous catalysis using similar ruthenium complexes. 6,12,[14][15][16][17][18][19] Based on the known extinction coefficient for each organic substrate it was possible to calculate the variation …”

mentioning

confidence: 99%

Modified electrodes prepared with polyphenolic film containing ruthenium complex and metal ligand anchored by azo covalent bond

Steter¹,

Pontólio²,

Campos³

et al. 2008

J. Braz. Chem. Soc.

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Este trabalho apresenta dois novos eletrodos de grafite modificados que foram preparados via polimerização da função fenólica, previamente funcionalizada por grupos azo (bipiridina e 2-metoxipiridina), que atuam como estruturas chaves para a ancoragem de ligantes de interesse. As sínteses dos monômeros BAP (4-([2,2']bipiridinil-4-ilazo)-fenol) e PAPmetóxi (5-(4-hidroxifenilazo)piridin-2-metóxi) foram simples, deram bons rendimentos e os monômeros foram facilmente eletropolimerizados, levando à formação de eletrodos modificados (EM) química e mecanicamente estáveis. Em solução aquosa e em circuito aberto, o EM PAP-metóxi formou complexos estáveis com Cd, Cu e Pb, produzindo picos redox bem definidos, demonstrando o grande potencial deste eletrodo para futuras aplicações analíticas. O monômero BAP foi utilizado para produzir um complexo de rutênio (BAP-Ru) que foi eletropolimerizado entre +0.50 e +0.75V (vs. Ag/AgCl), permitindo que o rutênio permanecesse disponível para atuar como catalisador. O EM BAP-Ru oxidou seletivamente uma variedade de substratos orgânicos dando produtos com rendimentos próximos ou melhores que aqueles obtidos por catálise homogênea com complexos de rutênio similares, ou quando este tipo de catalisador é impregnado em pasta de carbono.This work presents two new modified carbon electrodes which were prepared via the polymerization of a phenolic moiety previously functionalized with azo groups (bipyridine and 2-methoxypyridine) as key structures to anchor the desired ligands. The syntheses of BAP (4-([2,2']-bipyridinyl-4-ylazo)-phenol) and PAPmethoxy (5-(4-hidroxyphenylazo) pyridin-2-methoxy) were simple to perform, gave good yields and the monomers were easily electropolymerized resulting in chemically and mechanically stable modified electrodes. The PAPmethoxy ME formed stable complexes with Cd, Cu and Pb in aqueous media at open circuit and produced well defined redox peaks, showing good potential for future analytical applications. The BAP monomer was used to produce a ruthenium complex (BAP-Ru) which was electropolymerized from +0.50 to +0.75V (vs. Ag/AgCl) to leave the ruthenium available to act as a catalyst. The BAP-Ru ME was able to oxidize a variety of organic substrates with good selectivity. The yields obtained were either similar to, or better than, those obtained by homogeneous catalysis using a similar ruthenium catalyst or when this type of catalyst is supported in a carbon paste electrode. Keywords: metal complexation, polyphenolic film, ruthenium IntroductionThe modification of an electrode surface by an organic polymeric film functionalized either by a metal complex or a metal ligand has been broadly studied due to its applications on light absorption involving electron and energy transfer 1-5 and electrocatalysis, 6-9 as well as for its use as a sensor for trace analysis in a variety of media. [10][11][12][13] Phenyl allyl ethers derived from aromatic phenols can be easily electrochemically polymerized on carbon electrodes to produce a modified electrode with good mechani...

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Complexation of poly(pyrrole-EDTA like) film modified electrodes: Application to metal cations electroanalysis

Cited by 76 publications

References 23 publications

Functionalized polypyrrole nanotube arrays as electrochemical biosensor for the determination of copper ions

Functionalized polypyrrole nanotube arrays as electrochemical biosensor for the determination of copper ions

Fabrication and surface characterization of poly(4-aminodiphenylamine) film modified electrode and its application for lead and cadmium determination

Modified electrodes prepared with polyphenolic film containing ruthenium complex and metal ligand anchored by azo covalent bond

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