Anion and cation transport in composite films of polypyrrole with a sulphonated silica (ormosil) hydrogel

Aylward, Wanda M.; Pickup, Peter G.

doi:10.1016/j.electacta.2007.04.026

Cited by 11 publications

(4 citation statements)

References 42 publications

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“…prepared sulphonated ORMOSIL and used them in making composite films of polypyrrole on electrodes by electrochemical oxidation of pyrrole in a liquid sol‐gel electrolyte followed by ion transport study. It was found that anion transport prevailed at high potential whereas cation transport predominates at low potential . Weili et al.…”

Section: Introductionsupporting

confidence: 92%

“…It was found that anion transport prevailed at high potential whereas cation transport predominates at low potential. [15] Weili et al applied 2-hydroxyethyl acrylate to alter the surface of polysiloxane to make hybrid inorganic-organic electrolyte with liquid electrolytes, the conductivity of which was found to be in the order of 10 À3 S/ cm, but the lack of complete solid state limit its applicability as an efficient electrolyte. [16] Jia et al prepared poly(ethylene glycol)methyl ether methacrylate (PEGMA) functionalized silica nanoparticles through atom transfer radical polymerization (ATRP) and used them as a hybrid nanofiller in low-molecular weight polyethylene glycol dimethyl ether (PEGDME)-based electrolytes and demonstrated an enhanced conductivity value of 1.2 3 10 À4 S/cm.…”

Section: Introductionmentioning

confidence: 99%

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Nanostructure PEO‐Silica Hybrids: A New Class of Additive Material for Composite Polymer Electrolytes

et al. 2017

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Hybrid nanostructure polyethylene oxide (PEO)‐silica hybrids (PSH) prepared by sol‐gel chemistry are utilized as novel nanofiller to fabricate PEO‐based nanocomposite polymer elecytrolytes (NCPEs) by adopting the conventional solvent casting approach. The resulting PSH hybrids are characterized by various techniques followed by their incorporation into NCPEs that result in enhancement in the Li‐ion conductivity and a maximum ionic conductivity of 7.20 × 10−5 S cm−1 is achieved with only 0.25% nanofillers. The temperature dependence conductivity study shows a linear behavior below melting temperature following the Arrhenius equation and shows non‐linear behavior above the melting temperature following the Vogel–Taumann–Fulcher (VTF) equation. Argand plots of various NCPEs both at room temperature and elevated temperature signify the role of various relaxation processes for such type of conducting behavior, which is further supported by dielectric and tangential loss studies. Moreover, X‐ray diffraction and Differential Scanning Calorimetry measurements are carried out to understand the change in polymer crystallinity in the resulting NCPEs and are well in accordance with the conductivity changes.

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Section: Introductionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Nanostructure PEO‐Silica Hybrids: A New Class of Additive Material for Composite Polymer Electrolytes

et al. 2017

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“…This increased regeneration rate causes the ruthenium-based electrochemiluminescence (ECL) efficiency to be increased, which is of importance concerning the ECL detection of low concentrations of disease biomarkers [788]. The ormosil is incorporated into the polypyrrole matrix as an immobile polymeric counterion in addition to mobile Cl À counterions from the sol-gel electrolyte [950]. Polypyrrole with embedded semiconductor (CdS) quantum dots was obtained by electropolymerization of pyrrole in the presence of CdS nanoparticles dispersed in the electrolytic aqueous solution.…”

Section: Conducting Polymer-inorganic Compounds Compositesmentioning

confidence: 99%

Conducting Polymers

Inzelt¹

2012

Monographs in Electrochemistry

183

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Surprisingly, a large number of important topics in electrochemistry is not covered by up-to-date monographs and series on the market, some topics are even not covered at all. The series Monographs in Electrochemistry fills this gap by publishing indepth monographs written by experienced and distinguished electrochemists, covering both theory and applications. The focus is set on existing as well as emerging methods for researchers, engineers, and practitioners active in the many and often interdisciplinary fields, where electrochemistry plays a key role. These fields will range -among others -from analytical and environmental sciences to sensors, materials sciences and biochemical research.Information about published and forthcoming volumes is available at

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“…Conducting polymers, which have inherent ion/electron transfer property could establish an intermediate layer (bridge) between the brain tissue and metal electrode substrate, in both mechanical and electrochemical respects. Of these polymers, polypyrrole (PPy) has been selected to be the modifiers of electrodes due to its aqueous-compatibility, ease of preparation, beneficial chemical properties, and tunable surface morphology [6][7][8][9]. In recent years, another type of conducting polymer, poly(3,4-ethylenedioxythiophene) (PEDOT), has been introduced into this field.…”

Section: Introductionmentioning

confidence: 99%

Adenosine 5′-triphosphate incorporated poly(3,4-ethylenedioxythiophene) modified electrode: a bioactive platform with electroactivity, stability and biocompatibility

Xiao

Toh

et al. 2008

J Appl Electrochem

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Poly(3,4-ethylenedioxythiophene) (PEDOT) was potentiostatically polymerized onto gold electrode with adenosine 5 0 -triphosphate (ATP), an important biomolecule, as the counterion. Essential parameters to affect the impedance of the resultant polymer were studied in detail. Results show that 1.0 V, 0.1 M and 2.2 mC is the optimal deposition potential, dopant concentration and quantity of the passing charges, respectively. Surface topography was studied by AFM and the relationship between impedance and topography was discussed. Spontaneous release of ATP from PEDOT matrix was examined using UV-visible spectroscopy and impedance variation of the polymer modified electrode was monitored with electrochemical impedance spectroscopy. The results indicate that ATP could be strongly bound with the polymer in the incubation medium and thus could realize its role as a cell binder in its implantable application. In vitro test further demonstrates that PC12 cell could adhere to and grow on the PEDOT/ATP modified electrode and cell attachment percentage was much higher than that of non-biomolecule doped PEDOT modified electrode. Moreover, stability of PEDOT/ATP in the biological reducing agent of glutathione (GSH) was much better than that of polypyrrole/ATP. Our work demonstrates that PEDOT/ATP modified electrode can be of a promising bioactive platform to be used for implantable neural recording devices due to its great stability and biocompatibility.

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Anion and cation transport in composite films of polypyrrole with a sulphonated silica (ormosil) hydrogel

Cited by 11 publications

References 42 publications

Nanostructure PEO‐Silica Hybrids: A New Class of Additive Material for Composite Polymer Electrolytes

Nanostructure PEO‐Silica Hybrids: A New Class of Additive Material for Composite Polymer Electrolytes

Conducting Polymers

Adenosine 5′-triphosphate incorporated poly(3,4-ethylenedioxythiophene) modified electrode: a bioactive platform with electroactivity, stability and biocompatibility

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