Facile synthesis and characterization of polypyrrole-multiwalled carbon nanotubes by in situ oxidative polymerization

Imani, Amin; Farzi, Gholamali; Ltaief, Adnen

doi:10.1186/2228-5326-3-52

Cited by 68 publications

(51 citation statements)

References 34 publications

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“…Then, the conductivity at room temperature was measured by a DC voltage/current indicator with fourprobe standard method [17]. The data are shown at Fig.…”

Section: Resultsmentioning

confidence: 99%

“…It is one of the important green chemistry processes to prepare multifunctional polymers. This method has been widely used to prepare different types of conducting polymers and their different derivatives [1,5,[9][10][11][12][13][14][15][16][17]. The preparation of nanocomposite of PPy and organic nanoparticles becomes a novel challenge for investigators.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of PPy–silver nanocomposites via in situ oxidative polymerization

2014

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Silver nanoparticles were synthesized by chemical reduction method. The surface of silver nanoparticles (SNPs) was modified using polyvinylpyrrolidone to make them more compatible with pyrrole. Surface-modified SNPs were dispersed in pyrrole and polymerized via in situ oxidative polymerization technique. The molar ratio of monomer unit to initiator and dopant was 1:1:1 and the weight percent of SNPs in polymer matrix was varied from 1 to 10. The properties of polypyrrole-silver nanocomposites have been characterized using Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscope, transmission electron microscope, thermo-gravimetric analysis and four-probe resistivity meter. All these characterizations indicate that the polypyrrole-silver nanocomposite is successfully synthesized via in situ oxidative polymerization and electrical extent shows suitable conductivity.

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“…Then, the conductivity at room temperature was measured by a DC voltage/current indicator with fourprobe standard method [17]. The data are shown at Fig.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis of PPy–silver nanocomposites via in situ oxidative polymerization

2014

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“…In situ chemical polymerization is a useful methodology for the preparation of composites based on conducting polymers [6,7]. In this case, PPy is a suitable option due to its relatively high conductivity, stability in air, and biocompatibility [8,9].…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of cellulose paper/polypyrrole/bromophenol blue composites for disposable optical sensors

Gonçalves

2016

Open Chemistry

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This manuscript describes a novel approach for the preparation of composites based on cellulose paper (CP) modified with polypyrrole (PPy) and bromophenol blue (BPB) (CP/PPy/BPB). Cellulose fibers are suitable for uniformly retaining the polymer in its doped form, once BPB can be used as a negatively charged dye. The CP/PPy/BPB composites were characterized by Raman Spectroscopy, Scanning Electron Microscopy, Spectroscopy and Dispersive Energy, and X-ray Diffraction. After characterization, they were studied for the quantification of pH and ammonia by diffuse reflectance spectroscopy. Under varying pH, different colors were verified, which ranged from yellow to blue, and an optical response for ammonia at concentrations as high as 25 ppm. The replacement of BPB by bromothymol blue (BTB) did not produce efficient color transitions and showed no sensitivity to changes in pH and ammonia concentration.

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“…The large specific area and aspect ratio of MWCNT have made them efficient as conductive fillers in CPs [6]. The fabrication methods of nanocomposites containing MWCNT can be divided into two main categories.…”

Section: Introductionmentioning

confidence: 99%

Facile route for multi-walled carbon nanotube coating with polyaniline: tubular morphology nanocomposites for supercapacitor applications

Imani

Farzi

2015

J Mater Sci: Mater Electron

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A new approach involving low-temperature system has been developed for the polyaniline/multi-walled carbon nanotubes (PANi/MWCNT) composite in which MWCNT are coated with a layer of PANi in a complete tubular morphology. The MWCNT content varied from 0 to 10 %. The effect of MWCNT content on the thickness of PANi layer was studied. SEM technique was used to investigate the morphology and changes in the dimension of nanotubes. The interaction between PANi and MWCNT considering the nature of chain growth has been explained according to the results of FT-IR analysis. The improvement of thermal stability and crystallinity of the nanocomposites has been evaluated by using TGA and XRD, respectively. The results show the thickness of PANi coating on the surface of MWCNT was depended on the MWCNT content. These nanocomposites have been used for supercapacitor electrodes. The galvanostatic chargedischarge measurements indicated that the PANi/MWCNT composites had greater specific capacitances than pure PANi.

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Facile synthesis and characterization of polypyrrole-multiwalled carbon nanotubes by in situ oxidative polymerization

Cited by 68 publications

References 34 publications

Synthesis of PPy–silver nanocomposites via in situ oxidative polymerization

Synthesis of PPy–silver nanocomposites via in situ oxidative polymerization

Preparation and characterization of cellulose paper/polypyrrole/bromophenol blue composites for disposable optical sensors

Facile route for multi-walled carbon nanotube coating with polyaniline: tubular morphology nanocomposites for supercapacitor applications

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