The use of conducting polymers as cathodes for the electrochemical deposition of magnetic transition metal/rare earth alloys

Martinot, L.; Leroy, D.; Zhan, Hong; Licour, C.; Jérôme, Christine; Chapelle, Gérard; Calberg, Cédric; Jérôme, Robert

doi:10.1039/a908305g

Cited by 9 publications

(7 citation statements)

References 20 publications

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“…At such a low anodic potential, this alloy does not dissolve. Nevertheless, other conducting materials can be used: platinum, glassy carbon, ITO glass and polyethylene or polycarbonate containing 15 weight % of carbon black [4]. The thickness of the deposited layer is determined by the quantity of current [5]: 50 mC/cm 2 corresponds to 250 nm thickness.…”

Section: Methodsmentioning

confidence: 99%

Immobilization of actinide ions in thin layers of polypyrrole/polyacrylamidoglycolic acid (PPy/PAGA) composite. Application to the preparation of alpha spectrometry sources

Leroy¹,

Martinot²,

Mignonsin³

et al. 2002

Radiochimica Acta

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We propose a new fully aqueous electrochemical method for the preparation of high resolution alpha sources. Thin films of polypyrrole (PPy) are prepared by anodic electropolymerization, starting from aqueous solutions of the pyrrole monomer and an anionic polyelectrolyte which is able to complex actinide and play the role of PPy doping agent: polyacrylamidoglycolic acid (PAGA). These thin films can be prepared on various electrodes: stainless steel, platinum, glassy carbon and polyethylene doped by carbon-black. Peeling tests revealed their strong adhesion on stainless steel electrode. Alpha sources were prepared by simple immersion in actinide containing solutions. This easy process results in alpha sources with outstanding energy resolution (FWHM: around 9 keV for various isotopes).

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Section: Methodsmentioning

confidence: 99%

Immobilization of actinide ions in thin layers of polypyrrole/polyacrylamidoglycolic acid (PPy/PAGA) composite. Application to the preparation of alpha spectrometry sources

Leroy¹,

Martinot²,

Mignonsin³

et al. 2002

Radiochimica Acta

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“…Magnetic metals such as Co, Ni, Gd, and Sm can also be grown on conductive polymers in order to impart magnetic properties. Such composite materials are used in quantum electronics and nanocatalysis [10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, it is possible to use a conductive polymer as the substrate for metal reduction. The deposition of metals on polymers strongly depends on the properties of the polymer films and the metal-polymer interactions [8][9][10][11][12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Electrodeposition and Characterization of Co Particles on Ultrathin Polypyrrole Films

Hacıismailoğlu

Alper

Schwarzacher

2014

J Supercond Nov Magn

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Ultrathin polypyrrole (PPy) films with the thicknesses of 20, 50, and 100 nm were prepared by electropolymerization. Co particles with a charge density in the range of 125-1,250 mC cm −2 were grown on these ultrathin PPy films. Current time transients were used to investigate the electrochemical properties. It was observed that the deposition of Co becomes more difficult as the PPy film gets thicker. The chemical structure of PPy films in the reduced and oxidized forms and a PPy film with Co particles were examined with Fourier transform infrared spectroscopy (FTIR). The characteristic peaks of the oxidized PPy film were observed. The intensity and position of some peaks changed, and new peaks appeared for the reduced PPy film, possibly as a result of undoping of the PPy film. There are further differences in the spectrum of Co on PPy. The morphology of the films was studied by scanning electron microscopy (SEM). It was found that the morphology was affected by both the PPy film thickness and the Co charge density. Magnetic measurements were made by vibrating sample magnetometry (VSM). The magnetic moment of the samples increases with both decreasing PPy film thickness and increasing charge density due to increased Co deposition. For all samples, the easy axis is parallel to the film plane.

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“…However, inserting nanoparticles into a polymer surrounding is difficult. Another drawback is the fact that the potential values necessary for the deposition of metals generally fall in the potential region where the polymer is in an undoped state and thus almost insulating 24, 25. Furthermore, by increasing the electrolysis time, growth of the particles is preferred to the nucleation of new ones and thus metal loading and particle size cannot be independently varied24 and homogeneity of the coatings cannot be ensured 25…”

Section: Introductionmentioning

confidence: 99%

Structural Investigations of Composites Produced from Copper and Polypyrrole with a Dual PVD/PE‐CVD Process

Walter

Brüser

Quade

et al. 2009

Plasma Processes & Polymers

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Copper-polypyrrole composites were successfully produced with a dual plasma process. X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR) were used to characterise the structural properties. Topological and electrochemical investigations were also performed using atomic force and scanning electron microscopy (AFM, SEM) as well as cyclic voltammetry (CV) respectively. The results show that different composites were produced. When a low power was used, copper atoms bound to aromatic polymer structures were formed. Indications for the formation of electroactive copperpolypyrrole complexes are presented. Using higher power values, copper(I)oxide (ca. 3 nm) and copper nanoparticles (5-40 nm) embedded in a polymeric matrix were produced. Pulsing of the magnetron resulted in a modification of the chemical bonds within the samples.

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The use of conducting polymers as cathodes for the electrochemical deposition of magnetic transition metal/rare earth alloys

Cited by 9 publications

References 20 publications

Immobilization of actinide ions in thin layers of polypyrrole/polyacrylamidoglycolic acid (PPy/PAGA) composite. Application to the preparation of alpha spectrometry sources

Immobilization of actinide ions in thin layers of polypyrrole/polyacrylamidoglycolic acid (PPy/PAGA) composite. Application to the preparation of alpha spectrometry sources

Electrodeposition and Characterization of Co Particles on Ultrathin Polypyrrole Films

Structural Investigations of Composites Produced from Copper and Polypyrrole with a Dual PVD/PE‐CVD Process

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