Chemical synthesis and charge transport mechanism in solution processed flexible polypyrrole films

Taunk, Manish; Chand, Subhash

doi:10.1016/j.mssp.2015.06.015

Cited by 16 publications

(3 citation statements)

References 36 publications

(56 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…32,33 The peak situated at 22.4°(corresponding to a d-spacing of 3.97 Å) is attributed to the interplanar distance of two pyrrole rings in the PPy film. 34 The d-spacing (∼0.53 nm) of the pyrrolic planes is also observed clearly in the HR-TEM lattice image, which is in good agreement with the XRD observation of a peak at 2θ = 15.5°for the PPy film. In some reports, PPy exhibited as an amorphous polymer or only a broad peak in the range of 20−25°.…”

Section: Resultssupporting

confidence: 85%

“…Figure shows the XRD pattern of the PPy film, which displays two obvious peaks at approximately 2θ = 15.5° and 22.4°. It has been reported that the peak at 15.5° (corresponding to a d -spacing of 5.33 Å) arises due to the distance between the pyrrolic planes and the interfaced aromatic rings. , The peak situated at 22.4° (corresponding to a d -spacing of 3.97 Å) is attributed to the interplanar distance of two pyrrole rings in the PPy film . The d -spacing (∼0.53 nm) of the pyrrolic planes is also observed clearly in the HR-TEM lattice image, which is in good agreement with the XRD observation of a peak at 2θ = 15.5° for the PPy film.…”

Section: Resultssupporting

confidence: 81%

See 1 more Smart Citation

Flexible Overoxidized Polypyrrole Films with Orderly Structure as High-Performance Anodes for Li- and Na-Ion Batteries

Yuan

Ruan

Zhang

et al. 2016

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Flexible polypyrrole (PPy) films with highly ordered structures were fabricated by a novel vapor phase polymerization (VPP) process and used as the anode material in lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs). The PPy films demonstrate excellent rate performance and cycling stability. At a charge/discharge rate of 1 C, the reversible capacities of the PPy film anode reach 284.9 and 177.4 mAh g in LIBs and SIBs, respectively. Even at a charge/discharge rate of 20 C, the reversible capacity of the PPy film anode retains 54.0% and 52.9% of the capacity of 1 C in LIBs and SIBs, respectively. After 1000 electrochemical cycles at a rate of 10 C, there is no obvious capacity fading. The molecular structure and electrochemical behaviors of Li- and Na-ion doping and dedoping in the PPy films are investigated by XPS and ex situ XRD. It is believed that the PPy film electrodes in the overoxidized state can be reversibly charged and discharged through the doping and dedoping of lithium or sodium ions. Because of the self-adaptation of the doped ions, the ordered pyrrolic chain structure can realize a fast charge/discharge process. This result may substantially contribute to the progress of research into flexible polymer electrodes in various types of batteries.

show abstract

Section: Resultssupporting

confidence: 85%

Section: Resultssupporting

confidence: 81%

Flexible Overoxidized Polypyrrole Films with Orderly Structure as High-Performance Anodes for Li- and Na-Ion Batteries

Yuan

Ruan

Zhang

et al. 2016

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…The conductivity of pristine PANI increased mildly with increasing temperature as typical of organic semiconductors. 29,30 With more p-PDA introduced into the copolymerization mixture, the room temperature conductivities of the copolymers decreased nearly linearly on a semilogarithmic scale, indicating that the copolymerization products are statistical copolymers instead of a mixture of the corresponding homopolymers. 1,31 The reduction in conductivity corresponds to the shift in dependence in Fig.…”

Section: Conductivity Of Copolymersmentioning

confidence: 99%

Colloidal dispersions of conducting copolymers of aniline and p-phenylenediamine for films with enhanced conductometric sensitivity to temperature

Bober

Stejskal

2017

J. Mater. Chem. C

View full text Add to dashboard Cite

show abstract

Effect of Surfactants on the Structural and Luminescence Properties of γ‐CuI Nanocrystals Synthesized by Facile Sonochemical Method

Singh

Taunk

2020

ChemistrySelect

Self Cite

View full text Add to dashboard Cite

Semiconducting cuprous iodide (CuI) nanocrystals have been synthesized by the one-pot sonochemical method at room temperature. The synthesis was performed in aqueous medium using ascorbic acid, polyvinyl pyrrolidone, p-toluene sulfonic acid and docusate sodium as surfactants. X-ray diffraction (XRD) study of resulting material reveals the crystalline nature, cubic zinc blende lattice structure and γ phase of CuI nanocrystals. Scherrer method, Williamson-Hall plot and Size-Strain plot method have been used to investigate the particle size and intrinsic strain values from the XRD analysis. Field emission scanning electron microscopy (FESEM) revealed the morphology and different shapes (truncated tetrahedron, irregular, hexagonal & clustered) of CuI nanocrystals synthesized using different surfactants. In the PL spectrum of γ-CuI nanoparticles strong near band-edge emission was observed at about 423 nm. A slight red-shift in near band edge emission was observed due to the presence of surfactants. Enhanced electrical conductivity values (1.96 S/cm-9.19 S/cm) were obtained due to the presence of surfactants for γ-CuI nanocrystals. These properties of CuI nanocrystals makes them a suitable material for the design and development of optoelectronic devices.

show abstract

Chemical synthesis and charge transport mechanism in solution processed flexible polypyrrole films

Cited by 16 publications

References 36 publications

Flexible Overoxidized Polypyrrole Films with Orderly Structure as High-Performance Anodes for Li- and Na-Ion Batteries

Flexible Overoxidized Polypyrrole Films with Orderly Structure as High-Performance Anodes for Li- and Na-Ion Batteries

Colloidal dispersions of conducting copolymers of aniline and p-phenylenediamine for films with enhanced conductometric sensitivity to temperature

Effect of Surfactants on the Structural and Luminescence Properties of γ‐CuI Nanocrystals Synthesized by Facile Sonochemical Method

Contact Info

Product

Resources

About