Electrochemical Deposition of Hierarchical Micro/Nanostructures of Copper Hydroxysulfates on Polypyrrole−Polystyrene Sulfonate Films

Andreoli, Enrico; Rooney, Denise; Redington, Wynette; Gunning, Robert D.; Breslin, Carmel B.

doi:10.1021/jp200465n

Cited by 40 publications

(45 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Two peaks at 531.6 and 533.6 eV are found from the deconvolution of the signal. The peak at 531.6 eV can be attributed to the O=S of the dopant present in the PPy/ASPB nanocomposite [32], while the peak located at 533.6 eV may be related to the oxygen contribution of bound water and polymer-oxidized moieties. XPS studies indicate that doping of ASPB into PPy matrix is achieved, as expected, which is consistent with both FTIR studies.…”

Section: Xps Studymentioning

confidence: 99%

Synthesis and characterization of polypyrrole doped with anionic spherical polyelectrolyte brushes

Na¹,

Li²,

Yuan³

et al. 2012

Express Polym. Lett.

168

View full text Add to dashboard Cite

Abstract. The procedures for the synthesis of polypyrrole (PPy) doped with anionic spherical polyelectrolyte brushes (ASPB) (PPy/ASPB nanocomposite) by means of in situ chemical oxidative polymerization were presented. Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopic analysis suggested the bonding structure of PPy/ASPB nanocomposite. Scanning electron microscopy (SEM) was used to confirm the morphologies of samples. The crystallographic structure, chemical nature and thermal stability of conducting polymers were analyzed by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Thermo-gravimetric analysis (TGA) respectively. Investigation of the electrical conductivity at room temperature showed that the electrical conductivity of PPy/ASPB nanocomposite was 20 S/cm, which was higher than that of PPy (3.6 S/cm).

show abstract

Section: Xps Studymentioning

confidence: 99%

Synthesis and characterization of polypyrrole doped with anionic spherical polyelectrolyte brushes

Na¹,

Li²,

Yuan³

et al. 2012

Express Polym. Lett.

168

View full text Add to dashboard Cite

show abstract

“…This fractal geometry in electrochemical cells increases the electrochemically active surface area by decreasing the transport energy lost inside the network. Andreoli et al (2011) studied the electrodeposition of hierarchical micro/nanostructures of copper hyroxysulfates on thin film of polypyrrole-polystyrene sulfonate. Some researchers have reported the work of copper fractal on polypyrrole doped with different anions (Sakar, Zhou, Tannous, & Leung, 2003;Cioffi et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Copper Fractal Growth Pattern in Polymer Systems

Masood¹,

Perveen²,

Ashfaq³

2012

IJC

View full text Add to dashboard Cite

This paper presents the effect of polymer (polyvinyl alcohol) on the growth of copper fractal formation. A thin layer electrochemical cell was designed for the study of copper electrodeposition process. The structure and morphology for the copper fractal patterns were investigated by scanning electron microscopy (SEM). The copper fractal dimension was measured by using box counting method. On the basis of diffusion limited aggregation (DLA) model, growth pattern of copper fractal is two dimensional in nature. The copper fractal dimension is affected by the composition of polyvinyl alcohol. The growth pattern of copper fractal formation was measured under constant potential condition.

show abstract

“…Previous work by our group has shown that copper-based hierarchical micro/nanostructures could be deposited on a polypyrroleÀpolystyrene sulfonate (PPyÀ PSS) film from aerated or oxygen-saturated CuSO 4 solutions at a potential of 0.10 V vs SCE. 37 The structures were fully characterized and found to consist of a mixture of two different copper hydroxysulfates…”

Section: ' Introductionmentioning

confidence: 99%

“…39 The copper-based micro/nanostructures were formed electrochemically on the surface of the PPyÀPSS films. 37 After the electropolymerization, the electrodes were thoroughly rinsed with Milli-Q water and immersed in 0.10 M CuSO 4 aerated or oxygensaturated solution. The potential of the electrode was set at a constant value of 0.10 V vs SCE until a certain charge was passed (usually 40 mC/cm 2 ), and the copper-based structures were formed.…”

Section: ' Introductionmentioning

confidence: 99%

“…The electrochemical deposition of copper-based materials at PPyÀPSS thin films is strongly dependent on the electrode potential. While the deposition at 0.10 V vs SCE gives the formation of hierarchical copper hydroxysulfates micro/nanostructures, 37 the copper electrodeposits formed at lower potentials could possibly contain any or a mixture of copper metal, copper oxides, hydroxides, and/or hydroxysulfates. In order to investigate the influence of deposition potential on the nature of the structures, the modified films were characterized using SEM-EDX and XPS after electrodeposition at three potentials (Figure 1).…”

Section: ' Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Electrochemical Fabrication of Copper-Based Hybrid Microstructures and Mechanism of Formation of Related Hierarchical Structures on Polypyrrole Films

et al. 2011

Self Cite

View full text Add to dashboard Cite

The surface electrochemistry of polypyrroleÀ polystyrene sulfonate (PPyÀPSS) thin films is exploited for the fabrication of novel hybrid copper-based microstructures. The electrochemical deposition of the copper-based materials at the PPyÀPSS film is strongly dependent on the electrode potential. This dependence is studied at three different potentials: 0.10, 0.00, and À0.10 V vs SCE. Hierarchical micro/nanostructures made of copper hydroxysulfate salts are only formed at 0.10 V vs SCE and are replaced with branched and single microcrystals of Cu 2 O covered by a thin layer of Cu(OH) 2 at 0.00 and À0.10 V vs SCE, respectively. The different structures can be coupled on the same film through a simple fabrication procedure to give hybrid microstructures. These novel hybrids consist of a central microcrystal (deposited at À0.10 V vs SCE) and a surrounding contour of welded nanosheets (deposited at 0.10 V vs SCE). The mechanism of nucleation and growth of the hierarchical micro/ nanostructures formed at 0.10 V vs SCE is also reported. These structures are made from the assembly of nanoparticles into nanowires, nanosheets, and microclusters. These microclusters have a flowerlike shape within which each nanosheet forms a petal of the flower. The nucleation of the clusters is shown to be progressive.

show abstract

Electrochemical Deposition of Hierarchical Micro/Nanostructures of Copper Hydroxysulfates on Polypyrrole−Polystyrene Sulfonate Films

Cited by 40 publications

References 60 publications

Synthesis and characterization of polypyrrole doped with anionic spherical polyelectrolyte brushes

Synthesis and characterization of polypyrrole doped with anionic spherical polyelectrolyte brushes

Copper Fractal Growth Pattern in Polymer Systems

Electrochemical Fabrication of Copper-Based Hybrid Microstructures and Mechanism of Formation of Related Hierarchical Structures on Polypyrrole Films

Contact Info

Product

Resources

About