Structural aspects of electrochemical doping and dedoping of poly(3,4-ethylenedioxythiophene)

Aasmundtveit, Knut E.; Samuelsen, Emil J.; Inganäs, Olle; Pettersson, Lars; Johansson, Björn; Ferrer, S.

doi:10.1016/s0379-6779(00)00181-8

Cited by 111 publications

(95 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Its electrochemical cycling proceeds by a p-type doping/de-doping process: Anions from the electrolyte coordinate to the PPy chains during oxidation, and they are released during reduction 27 . The reduction and oxidation of the polymer could also be balanced by smaller ions, such as H 3 O + in acidic aqueous electrolytes, which can fit into the existing paracrystalline lattice as previously demonstrated in the case of poly(3,4-ethylenedioxythiophene) 28 . The reaction potential of PPy depends on the particular doping anion 29 , but is typically near 0 V versus SHE, making it attractive for use as an anode in aqueous cells (Fig.…”

Section: Resultsmentioning

confidence: 68%

A high-rate and long cycle life aqueous electrolyte battery for grid-scale energy storage

et al. 2012

View full text Add to dashboard Cite

new types of energy storage are needed in conjunction with the deployment of solar, wind and other volatile renewable energy sources and their integration with the electric grid. no existing energy storage technology can economically provide the power, cycle life and energy efficiency needed to respond to the costly short-term transients that arise from renewables and other aspects of grid operation. Here we demonstrate a new type of safe, fast, inexpensive, long-life aqueous electrolyte battery, which relies on the insertion of potassium ions into a copper hexacyanoferrate cathode and a novel activated carbon/polypyrrole hybrid anode. The cathode reacts rapidly with very little hysteresis. The hybrid anode uses an electrochemically active additive to tune its potential. This high-rate, high-efficiency cell has a 95% round-trip energy efficiency when cycled at a 5C rate, and a 79% energy efficiency at 50C. It also has zero-capacity loss after 1,000 deep-discharge cycles.

show abstract

Section: Resultsmentioning

confidence: 68%

A high-rate and long cycle life aqueous electrolyte battery for grid-scale energy storage

et al. 2012

View full text Add to dashboard Cite

show abstract

“…In similar XRD studies, these new peaks have been attributed to the crystalline lattice of PEDOT chains doped by tosylate anions. 38,39 The crystalline structure is orthorhombic, the peaks at scattering angles 2θ = 11.0º, 13.3º, 18.5º and 25. a, the inter-chain distance between stacked chains. 38,39 The crystallinity of the PEDOT was not quantitatively measurable because no clear amorphous halo was detected (cf.…”

Section: Structural Analysismentioning

confidence: 99%

Production of Conductive PEDOT Nanofibers by the Combination of Electrospinning and Vapor-Phase Polymerization

2010

View full text Add to dashboard Cite

This study reports on the combination of the electrospinning technique and an adapted vapor-phase polymerization procedure to fabricate PEDOT nanofibers. The fibers have average diameters around 350 nm and are soldered at every intersection of the mat, ensuring a superior dimensional stability. The nanofibers are highly ordered at the molecular level, giving the nonwoven mats a very high conductivity (∼60 S/cm), the highest value reported so far for polymer nanofibers. The mats also demonstrate interesting electrochemical properties due to their porous and nanostructured nature. These conductive nanofibers are expected to be of interest for a number of electronic devices requiring flexibility and/or significant surface area, such as sensors or energy storage systems.

show abstract

“…33,34 PEDOT and its derivatives were settled among the most successful EPs due to their high electrochemical and environmental stability, high conductivity, high transparency and high biocompatibility. [35][36][37][38][39] Detection of MO with PEDOT was carried out using immobilized molecularly imprinted polymer (MIP) particles, this procedure being successful for drug concentrations ranging from 0.01 to 0.2 mM. 33 More recently, Atta and co-workers 40 investigated the electrochemical determination of MO at PEDOT modified platinum electrodes in presence of sodium dodecyl sulfate.…”

Section: Introductionmentioning

confidence: 99%

Fmoc–RGDS based fibrils: atomistic details of their hierarchical assembly

Zanuy

Poater

Solà

et al. 2016

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

The interaction between morphine (MO), a very potent analgesic psychoactive drug, and five electroactive polymers, poly(3,4-ethylenedioxythiophene) (PEDOT), poly(3-methylthiophene) (P3MT), polypyrrole (PPy), poly(N-methylpyrrole (PNMPy) and poly[N-(2-cyanoethyl)pyrrole] (PNCPy), has been examined using theoretical calculations on model complexes and voltammetric measures considering different pHs and incubation times. Quantum mechanical calculations in model polymers predict that the strength of the binding between the difference polymers and morphine increases as follows: PEDOT < PNMPy < PPy << P3MT ≈ PNCPy. The most relevant characteristic of P3MT is its ability to interact with morphine exclusively through non-directional interactions. On the other hand, the variations of the electroactivity and the anodic current at the reversal potential evidence that the voltammetric response towards the presence of MO is considerably higher for P3MT and PNCPy than that for the other polymers at both acid (P3MT > PNMPy) and neutral (P3MT ≈ PNCPy) pHs. Energy decomposition analyses of the interaction of MO with different model polymers indicate that the stronger affinity of MO for P3MT and PNCPy as compared to PEDOT, PNMPy, and PPy is due to more favorable orbital interactions. These more stabilizing orbital interactions are the result of the larger charge transfer from MO to P3MT and PNCPy model polymers that takes place because of the higher stability of the single occupied molecular orbital (SOMO) of these model polymers. Therefore, to design polymers with a large capacity to detect MO we suggest looking at polymers with high electron affinity.3

show abstract

Structural aspects of electrochemical doping and dedoping of poly(3,4-ethylenedioxythiophene)

Cited by 111 publications

References 14 publications

A high-rate and long cycle life aqueous electrolyte battery for grid-scale energy storage

A high-rate and long cycle life aqueous electrolyte battery for grid-scale energy storage

Production of Conductive PEDOT Nanofibers by the Combination of Electrospinning and Vapor-Phase Polymerization

Fmoc–RGDS based fibrils: atomistic details of their hierarchical assembly

Contact Info

Product

Resources

About