Electrochemical incorporation of copper in polyaniline layers

Tsakova, V.; Borissov, Dimitar; Ranguelov, Bogdan; Stromberg, C.; Schultze, J.W.

doi:10.1016/s0013-4686(01)00705-8

Cited by 53 publications

(33 citation statements)

References 18 publications

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“…In our previous studies on copper electrodeposition in PANI [18,19] and POMA [22]-coated electrodes we have shown that the initial oxidation state of the CP layer plays a major role for the type and location of the metal deposit. Thus for PANI it was found that use of initially reduced PANI layers allows incorporation of copper crystalline species in the volume of the CP layer [19].…”

Section: Copper Modified Poma and Panimentioning

confidence: 99%

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Ascorbic Acid Oxidation at Nonmodified and Copper‐Modified Polyaniline and Poly‐ortho‐methoxyaniline Coated Electrodes

Komsiyska

Tsakova

2006

Electroanalysis

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The electrochemical oxidation of ascorbate ions is comparatively studied at polyaniline (PANI) and poly-orthomethoxyaniline (POMA) layers in absence and presence of electrodeposited copper species. In comparison to PANI, POMA layers allow decreasing the overpotential necessary for driving the ascorbate oxidation reaction. A nonlinear dependence of the ascorbate oxidation current on the polymer layer redox charge is found. Copper electrodeposited in PANI and POMA layers is electrocatalytically active for the investigated reaction. Two separate oxidation waves are observed in the case of Cu-PANI whereas a single ascorbate oxidation wave and enhanced currents are found in the Cu-POMA case.

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Section: Copper Modified Poma and Panimentioning

confidence: 99%

“…Thus for PANI it was found that use of initially reduced PANI layers allows incorporation of copper crystalline species in the volume of the CP layer [19]. On the other hand copper electrodeposition in initially reduced POMA layers allows a homogeneous distribution of the copper species [22].…”

Section: Copper Modified Poma and Panimentioning

confidence: 99%

Ascorbic Acid Oxidation at Nonmodified and Copper‐Modified Polyaniline and Poly‐ortho‐methoxyaniline Coated Electrodes

Komsiyska

Tsakova

2006

Electroanalysis

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“…The metal nucleation and growth occurs at a continuously varying overpotential and therefore it is not suitable for gaining insight into the kinetics of the metal electrodeposition. Nevertheless, this approach provides a helpful opportunity to assess the involvement of CP reduction in the overall process, and to explore fine differences in the reductive behavior of CP materials synthesized under various electrochemical conditions [180][181][182][183]185,189].…”

Section: Size and Size Distribution Of Electrodeposited Metal Particlesmentioning

confidence: 99%

“…In fact, the inhomogeneity of the polymer layer seems to be in the origin of the production of metal particles with sizes of very different scales (e.g. nm-sized and mm-sized) (Figure 7.4), which are sometimes simultaneously observed on the polymer surface [173,180,181]. The appearance of rather large metal crystals can be related to the existence of microdefects, e.g.…”

Section: Size and Size Distribution Of Electrodeposited Metal Particlesmentioning

confidence: 99%

Metallic‐Based Nanocomposites of Conductive Polymers

Tsakova

2010

Nanostructured Conductive Polymers

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IntroductionSince the remarkable discovery of high electrical conductivity in polymer materials in 1977 [1], studies on conductive polymers (CP 1 ) have developed into interdisciplinary research expanding in various directions. A significant impetus to the field was given by materials scientists in their attempts to combine the unique properties of conductive polymers with those of other inorganic and organic materials. Thus, in the last two decades, research on the synthesis of CP-based composite materials has flourished and resulted in the development of a great variety of new materials with interesting specifically designed properties. The accumulation of a great number of studies on nanocomposite materials has provoked the recent appearance of several review articles [2-7] attempting to summarize, from different specific points of view, the advances made in the field. Thus, electrochemical aspects [2,7] of CP-based composites, optical and electronic properties [3], polyaniline(PANI)-based nanocomposites [4], the involvement of composites of CPs in chemical sensing [5], and the incorporation of metallocenes in CPs [6] have been extensively discussed.

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“…have been well investigated and reported in the literature. The mechanism of interaction between PANI and transition metals such as copper, 6,7 cobalt, 8À10 gold, 11À13 silver, 14 platinum 15,16 or palladium 17À20 in the form of ions or zero valence particles have also been studied thoroughly. Noteworthy, PANI has been found to be very attractive and the most suitable for incorporation of transition metal complex ions under appropriate conditions.…”

Section: Introductionmentioning

confidence: 99%

Effect of Ruthenium (Iii) Incorporation in Polyaniline Backbone: Materials for Supercapacitive Energy Storage Application

Giri

Ghosh

Das

2013

NANO

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HCl doped polyaniline (PANI) and Ru (III) doped polyaniline (Ru/PANI) have been successfully prepared by in situ oxidative polymerization method and the e®ect of transition metal incorporation in PANI backbone is investigated thoroughly by the execution of Fourier transform infrared spectroscopy (FT-IR) and Raman study. Moreover, to examine the change in surface and bulk morphology of the composites, the¯eld emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) have also been carried out, which revealed the agglomerated state of PANI after being Ru doped. The con¯rmation of the presence of Ru in the composite is achieved by the energy dispersive X-ray spectroscopy (EDS). Also, the electrochemical characterizations namely, cyclic voltammetry (CV), ac impedance spectroscopy (EIS), cyclic chargeÀdischarge (CCD), of the composite was performed by conventional three-electrode system using 1 M H 2 SO 4 electrolyte. On doping with Ru, an increment of speci¯c capacitance of PANI from 160 F/g to 425 F/g has been achieved with a considerable increase in cycle stability.

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Electrochemical incorporation of copper in polyaniline layers

Cited by 53 publications

References 18 publications

Ascorbic Acid Oxidation at Nonmodified and Copper‐Modified Polyaniline and Poly‐ortho‐methoxyaniline Coated Electrodes

Ascorbic Acid Oxidation at Nonmodified and Copper‐Modified Polyaniline and Poly‐ortho‐methoxyaniline Coated Electrodes

Metallic‐Based Nanocomposites of Conductive Polymers

Effect of Ruthenium (Iii) Incorporation in Polyaniline Backbone: Materials for Supercapacitive Energy Storage Application

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