Fabrication of electrically-conducting nonwoven porous mats of polystyrene–polypyrrole core–shell nanofibers via electrospinning and vapor phase polymerization

Nair, Sujith; Hsiao, Erik; Kim, Seong H.

doi:10.1039/b807007e

Cited by 48 publications

(29 citation statements)

References 56 publications

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“…Vapor phase polymerization has been used to prepare thin films of conductive polypyrrole on different substrates [26][27][28] , . In all cases, the template or substrate must be immersed in a solution containing the oxidant and dopant before exposure to pyrrole vapor.…”

Section: Introductionmentioning

confidence: 99%

Nanoporous polypyrrole: preparation and hydrogen storage properties

Attia

Lee

Kim

et al. 2013

Int. J. Energy Res.

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SUMMARY A new nanoporous polypyrrole material with permanent mesopores on the surface, internal pores, and pockets with sponge‐like structures has been developed. The nanoporous polypyrrole was prepared as a material for hydrogen storage using a simple, environmentally friendly, and newly developed ‘solid‐state vapor‐phase polymerization’ method. The direct use of the solid powder of oxidant in the new preparation method is responsible for the pore formation mechanism, and preparation method also controls the pore diameter of the prepared nanoporous conducting polymer. The effect of reaction time on the pore volume and hydrogen storage capacity was investigated, and it was found that the hydrogen storage capacity and the mesopore volume decreased based on an increase in reaction time. The prepared nanoporous polypyrrole materials have been observed to reach a maximum reversible hydrogen adsorption capacity of 2.2 wt.% at 77 K. The average isosteric heat of adsorption of the obtained polypyrrole was 7.51 kJ/mol, which is larger than that reported for most metal‐organic frameworks, porous carbon, and hypercross‐linked polystyrenes. Copyright © 2013 John Wiley & Sons, Ltd.

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Section: Introductionmentioning

confidence: 99%

Nanoporous polypyrrole: preparation and hydrogen storage properties

Attia

Lee

Kim

et al. 2013

Int. J. Energy Res.

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“…The peak at 401.31 eV was attributed to -NH ? in the polaronic charge carrier species (Nair et al 2008(Nair et al , 2005. In comparison with the XPS spectra of CF1, a new peak at 402.04 eV was detected for CF3, as illustrated in Fig.…”

Section: Xps Depth Profiling Analysismentioning

confidence: 92%

“…1 FT-IR spectra of the original cellulose fiber and conductive fibers Cellulose adsorption peaks associated with PPy were shown in the FT-IR spectra of conductive fibers. The two peaks at 1546 and 1453 cm -1 can be attributed to antisymmetric and symmetric C=C stretching vibrations in pyrrole ring, respectively (Omastová et al 2003;Nair et al 2008). The peak at about 1316 cm -1 was attributed to the breathing vibration of the pyrrole ring, and the peak at about 893 cm -1 was assigned to outof-plane deformation vibrations of C-H in the pyrrole ring (Wang et al 2013).…”

Section: Ftir Analysismentioning

confidence: 97%

Preparation and characterization of polypyrrole/cellulose fiber conductive composites doped with cationic polyacrylate of different charge density

Wang

Fei

et al. 2015

Cellulose

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Polypyrrole/cellulose fiber-conductive composites were chemically synthesized in situ by using, for the first time, cationic polyacrylate copolymer as dopant and FeCl 3 as oxidant. The impacts of dopant charge density on the adsorption of the dopant on cellulose fiber, microstructure, tensile strength, conductivity and stability were investigated. In addition, the elemental composition, distribution and doping state of the polypyrrole in conductive fiber were determined by elemental analysis and X-ray photoelectron spectroscopy. Compared with anthraquinone-2-sulfonic acid sodium salt, cationic polyacrylate copolymer was a more effective dopant in increasing the conductivity and conductivity stability of conductive paper. The decay of mechanical properties was also weakened. The surface resistivity decreased from 4.6 to 0.3 KX square -1 with increasing dopant charge density from 0.525 to 0.820 lmol g -1 and then increased with a further increase in the dopant charge density. It was also found that the polypyrrole retention in conductive fiber reached the maximum when the charge density of the dopant was 0.820 lmol g -1 . When the conductive fiber was doped with high-charged dopant, polypyrrole was easier to enter into the fiber lumen, and bipoloran charge carriers were more easily formed. With respect to the conductive fibers prepared with dopant of 0.820 and 0.525 lmol g -1 charge density, the total content of polaron and bipolaron in the former conductive fiber was higher than the content of polaron in the latter conductive fiber. In addition, uniform and denser nanofibrous PPy can be formed by controlling the dopant charge density.

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“…In another method, the fabrication of electrically conducting nonwoven porous mats of polystyrene-polypyrrole core-shell nanofibers via electrospinning and vapor-phase polymerization was proposed [46]. PS nanofibers were produced by electrospinning PS solutions containing chemical oxidants capable of polymerizing pyrrole monomers.…”

Section: Core-shell Polypyrrole Nanofibers and Nanotubesmentioning

confidence: 99%

Nanostructured Conductive Polymers by Electrospinning

Chronakis

2010

Nanostructured Conductive Polymers

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Fabrication of electrically-conducting nonwoven porous mats of polystyrene–polypyrrole core–shell nanofibers via electrospinning and vapor phase polymerization

Cited by 48 publications

References 56 publications

Nanoporous polypyrrole: preparation and hydrogen storage properties

Nanoporous polypyrrole: preparation and hydrogen storage properties

Preparation and characterization of polypyrrole/cellulose fiber conductive composites doped with cationic polyacrylate of different charge density

Nanostructured Conductive Polymers by Electrospinning

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