Template free method for the synthesis of Ag–PPy core–shell nanospheres with inherent colloidal stability

Suryawanshi, Abhijit; Thuptimdang, Pumis; Byrom, Joseph; Khan, Eakalak; Gelling, Victoria J.

doi:10.1016/j.synthmet.2014.09.005

Cited by 17 publications

(3 citation statements)

References 62 publications

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“…A major avenue for the production of novel materials is relied on the formation of inorganic-organic nanocomposites in which both functionality would be synergized leading to a new functionality. In this interest, it was envisioned that simultaneous formation of polypyrrole and AgNPs via in situ oxidative polymerization of pyrrole [47][48][49] would serve as an intimate way for obtaining nanocomposites with different content of CNT. Scheme 1 shows the formation of intimate nanocomposites with different percentage of CNT.…”

Section: Synthesis Of Cnt 0-60 /Ppy/agnpsmentioning

confidence: 99%

Synthesis of nanocomposites of polypyrrole/carbon nanotubes/silver nano particles and their application in water disinfection

et al. 2017

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Section: Synthesis Of Cnt 0-60 /Ppy/agnpsmentioning

confidence: 99%

Synthesis of nanocomposites of polypyrrole/carbon nanotubes/silver nano particles and their application in water disinfection

et al. 2017

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“…Conducting polymers (CP) core-shell structure composites are one of such heterogeneous materials, with interesting properties derived from both the core and shell, and has prospective applications in several fields including drug delivery, catalysis, biotechnology, sensors and microelectronic devices [1,2]. Among various types of conducting polymers, Polypyrrole (PPy) is one of the most studied polymers for the applications of battery electrodes, corrosion protection, biosensors and electrochromic displays, light-emitting devices because of it possess high electrical conductivity, relative ease of synthesis, good mechanical properties and good environmental stability.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of 8-Hydroxyquinoline Aluminum/Polypyrrole Core-Shell Composites

Song

Han

et al. 2016

J. Photopol. Sci. Technol.

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In this paper, 8-hydroxyquinoline aluminum/polypyrrole (Alq 3 /PPy) core-shell composites were prepared via in situ chemical oxidative polymerization with ammonium persulfate (APS) as oxidizer and hydrochloric acid (HCl) as dopant. The structure and properties of PPy, Alq 3 and Alq 3 /PPy composites have been studied by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy and thermogravimetric analysis. The electrical conductivity of Alq 3 /PPy composites were evaluated using ohmmeter. It is found that the Alq 3 /PPy composites is successfully synthesized via in situ oxidative polymerization. The results of thermogravimetric analysis showed that relatively good thermal stability of Alq 3 /PPy composites. Furthermore, the probable formation mechanism of Alq 3 /PPy core-shell structure composites were also proposed on the basis of the experimental results.

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“…A one‐pot synthesis is a cost‐effective approach in which morphology and dimensions of both parent materials can be tuned 17,26 . Various one‐pot techniques includes chemical polymerization with or without surfactant, 27 vertical spinning, 28 ϒ‐irradiation, 29 ozone assisted polymerization, 30 ultrasonication, 31 and UV irradiation 32 . Out of these, chemical polymerization is the easiest approach to achieve high yield in which morphology and dimensions can be controlled by varying various reaction parameters.…”

Section: Introductionmentioning

confidence: 99%

Novel methyl‐orange assisted core‐shell polyaniline‐silver nanosheets for highly sensitive ammonia chemiresistors

Chaudhary

Chavali²

2021

J of Applied Polymer Sci

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A cost‐effective, eco‐friendly, one‐pot synthesis of a new class of homogenous core‐shell polyaniline‐silver nanocomposite was fabricated with the assistance of supramolecular aggregates of amphiphilic methyl‐orange (MO) and oxidant ions of silver nitrate (AgNO3). The morphology of nanocomposite transforms from spherical (core‐shell type: PA‐1) to plate‐like polygonal particles (PA‐2) with surge in concentration of AgNO3. The strong contrast of the TEM images depicts the presence of silver (Ag) at core and polyaniline (PAN) at the shell. The core‐shell structure of the synthesized nanocomposite was confirmed using KCN washing technique. The SAED pattern reveals the hexagonal nature of PAN‐Ag hybrid nanosheets with [111] orientation with interplanar spacing around 2.4 Å corresponding to face‐centered‐cubic structure of Ag. The X‐ray diffraction spectra reveal the crystalline nature of the hybrid. Furthermore, the chemiresistors fabricated using the PA nanocomposite was analyzed for ammonia (NH3) monitoring behavior. The fabricated room temperature chemiresistor was found to be highly sensitive (~47.1% sensitivity) towards low concentration (as low as 1 ppm) of NH3 with high selectivity and stability, which opens a new window for fabricating cost‐effective commercial sensors.

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Template free method for the synthesis of Ag–PPy core–shell nanospheres with inherent colloidal stability

Cited by 17 publications

References 62 publications

Synthesis of nanocomposites of polypyrrole/carbon nanotubes/silver nano particles and their application in water disinfection

Synthesis of nanocomposites of polypyrrole/carbon nanotubes/silver nano particles and their application in water disinfection

Preparation and Characterization of 8-Hydroxyquinoline Aluminum/Polypyrrole Core-Shell Composites

Novel methyl‐orange assisted core‐shell polyaniline‐silver nanosheets for highly sensitive ammonia chemiresistors

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