Electrodeposition of Chiral Polymer–Carbon Nanotube Composite Films

Zhang, Xuetong; Song, Wenhui; Harris, Peter; Mitchell, Geoffrey R.

doi:10.1002/cphc.200700213

Cited by 12 publications

(6 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Very recently, electrodeposition has been used to produce chiral polyaniline-MWCNT composite films whose optical activity can be tuned by the choice of electrode material and nanotube concentration. 126 Various strategies have been pursued to enhance the interaction between the conducting polymer matrix and the nanotubes. As one possibility, nanotubes non-covalently modified by adsorption of dodecylbenzene 127 or 1-pyrene sulfonic acid 128 have been employed.…”

Section: Electropolymerization Approachmentioning

confidence: 99%

Electrochemically functionalized carbon nanotubes for device applications

2008

View full text Add to dashboard Cite

Section: Electropolymerization Approachmentioning

confidence: 99%

Electrochemically functionalized carbon nanotubes for device applications

2008

View full text Add to dashboard Cite

“…Recently, a novel procedure for the electrodeposition of a chiral PANI-CNT composite film on different substrates like gold on silicon chip, indium tin oxide-coated glass plate, and carbon rod has been reported. The optical activity of the composite can be tuned by the selection of either electrode materials or CNT content in the electrolyte [59]. A donor-acceptor PANI-SWCNT or MWCNT dyad has been obtained electrochemically in an ionic liquid, 1-butyl-3-methyl-imidazolium hexafluorophosphate, containing 1 M CF 3 COOH [60,61].…”

Section: Introductionmentioning

confidence: 99%

Polyaniline-carbon nanotube composites

Gajendran

Saraswathi

2008

Pure and Applied Chemistry

137

View full text Add to dashboard Cite

Abstract:The key developments in polyaniline-carbon nanotube (PANI-CNT) composites are reviewed. Apart from in situ chemical polymerization and electrochemical deposition, a number of interesting approaches including the use of aniline functionalized CNTs and ultrasound/microwave/γ-radiation initiated polymerization have been used in the preparation of composites. The structure and properties of these composites have been investigated by a variety of techniques including absorption, infrared (IR), Raman, X-ray photoelectron spectroscopy methods, scanning electron and scanning probe microscopy techniques, cyclic voltammetry, and thermogravimetry. The experimental results indicate favorable interaction between PANI and CNTs. The CNT content in these composites controls their conductive, mechanical, and thermal properties. The most interesting characteristic is their easy dispersibility in aqueous solution. The performance evaluation studies of PANI-CNT composites in a number of applications including supercapacitors, fuel cells, sensors, and actuators are highlighted.

show abstract

“…The scanning electron micrographs – of as‐deposited PANI (see experimental section) show a near granular morphology, Figure S1a (Supporting Information) and the energy dispersive spectroscopy (EDS), Figure S1b (Supporting Information), shows the presence of chloride dopant along with carbon and nitrogen indicating as‐synthesized PANI is in the conducting form . The cyclic voltammogram of PANI without a cation selective upper layer in protic acids (for example in HClO 4 ), Figure a, shows mainly two pairs of redox peaks corresponding to the redox trans formation of lucoemeraldine (EB) to emeraldine (ES) and ES to pernigraniline (PG) during the positive going scan and their reversal during the negative going scan . A minor peak pair observed in the mid potential region is attributed to defects in the polymeric backbone by many researchers .…”

Section: Resultsmentioning

confidence: 99%

Tuning the Interfacial Chemistry of Redox‐Active Polymer for Bifunctional Probing

et al. 2017

View full text Add to dashboard Cite

Redox‐active conducting polymers are ubiquitous in sensing devices, owing to their good conductivity, ease of synthesis, and processability. The necessity of proton transfer during their redox energy modulations projected them as universal pH sensors, owing to Nernstian dependence of electromotive force (EMF) on the pH. Here, we show that the pH‐dependent Nernstian EMF of redox‐active conducting polymeric interfaces becomes universal only with a cation‐selective ionomer cover, without which the interface transforms depending on the chemistry of the conjugate base, owing to the dependency of the polymer's redox energy on the nature of the conjugate base. For an uncovered redox‐active polymer, galvanostatic intermittent titration (GITT) and electrochemical quartz crystal microbalance (EQCM) studies demonstrate a clear distinction in the kinetics of psuedocapacitive charge injection between spherical and tetrahedral anions, leading to a multifunctional ion‐sensing probe. Nonetheless, for a polymer with a cation‐selective ionomer cover, GITT and EQCM measurements demonstrate a unified response, irrespective of the nature of the conjugate bases, owing to rectified cationic transport, leading to a universal pH sensor. A bifunctional ion‐sensing meter is constructed by coupling the redox‐active polymer probe with a non‐polarizable interface and it can signal the end user the cation concentration and the type of conjugate base in a single measurement.

show abstract

Electrodeposition of Chiral Polymer–Carbon Nanotube Composite Films

Cited by 12 publications

References 33 publications

Electrochemically functionalized carbon nanotubes for device applications

Electrochemically functionalized carbon nanotubes for device applications

Polyaniline-carbon nanotube composites

Tuning the Interfacial Chemistry of Redox‐Active Polymer for Bifunctional Probing

Contact Info

Product

Resources

About