Synthesis and characterization of Ag/polypyrrole nanocomposites based on silver nanoparticles colloid

Jing, Shengyu; Xing, Shuangxi; Yu, Lianxiang; Zhao, Chun

doi:10.1016/j.matlet.2007.02.045

Cited by 79 publications

(49 citation statements)

References 23 publications

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“…In recent years, the attention in the improvement of inorganic/organic nanocomposites has increased significantly because of a wide range of potential application of these materials [1,2]. Among various types of organic compounds, conducting polymers found different applications due to their unique properties.…”

Section: Introductionmentioning

confidence: 99%

“…However, one major problem in the synthesis of nanocomposite materials derived from the dispersion of nanoparticles in polymer matrices is the aggregation of nanoparticles. Oxidative polymerization exemplifies a new route to access conducting polymers and nanocomposites with conducting polymers matrices [1,5,8]. It is one of the important green chemistry processes to prepare multifunctional polymers.…”

Section: Introductionmentioning

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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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Synthesis of PPy–silver nanocomposites via in situ oxidative polymerization

2014

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“…The solution was kept unagitated for 48 h in a sealed container at room temperature. The precipitate was collected by vacuum filtration, the product was rinsed with double distilled water many times and dried under vacuum [14,15].…”

Section: Synthesis Of Polypyrrole-silver Nanocomposite (Ppy-ag Nc)mentioning

confidence: 99%

Selective and Sensitive Room Temperature Detection of Ammonia by PPy-Ag Nanocomposite

Nerkar¹

2018

IJRASET

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This paper describes synthesis of polypyrrole-silver nanocomposite (PPy-Ag-NC) via in situ chemical oxidative polymerization of pyrrole, based on colloidal suspension of silver nanoparticles. The structure analysis of synthesized nanocomposite was done by Fourier transform infrared (FTIR) spectroscopy. Transmission electron microscopy (TEM) micrographs showed spherical Ag nanoparticles of about 38-60 nm were embedded in the PPy matrix. Scanning Electron Microscopy (SEM) photo graphs revealed formation of uniform granular morphology. X-ray diffraction (XRD) pattern shows broad peak at 2 = 25.3o suggesting that PPy is amorphous, but peaks at 2θ values of 38.2°, 44.5°, 64.3° and 78.4° corresponding to face centered cubic silver. Room temperature ammonia gas sensing behaviour of PPy-Ag nanocomposite films were examined. Gas sensing tests demonstrated that the composite films exhibited a fast response (58s to 153s), rapid recovery (347s to 746s) and high sensitivity and sensitivity at room temperature with a detection of low concentration (50 to 500 ppm) of ammonia gas. The experimental result demonstrates the potential of using PPy-Ag nanocomposite as sensing material for the fabrication of room temperature operating ammonia sensor.

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“…There are several reports of Ag nanocomposites with conducting polymers like polyaniline [38] and polypyrrole [39]. However, electrical conducting properties of green metal -starch www.intechopen.com nanocomposites would be of potential biomedical applications.…”

Section: Metal-polysaccharide Nanocompositesmentioning

confidence: 99%

Role of Biopolymers in Green Nanotechnology

Thakore¹

2012

Products and Applications of Biopolymers

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Synthesis and characterization of Ag/polypyrrole nanocomposites based on silver nanoparticles colloid

Cited by 79 publications

References 23 publications

Synthesis of PPy–silver nanocomposites via in situ oxidative polymerization

Synthesis of PPy–silver nanocomposites via in situ oxidative polymerization

Selective and Sensitive Room Temperature Detection of Ammonia by PPy-Ag Nanocomposite

Role of Biopolymers in Green Nanotechnology

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