Polypyrrole Supported Reduced Graphene Oxide Prepared by In Situ Polymerization and Its Thermoelectric Properties

Li, Feihui; Zhang, Lei; Gao, Jian; Wang, Wei; Gao, Jianping; Gong, Yunlan; Pan, Cheng

doi:10.1007/s11664-022-09796-0

Cited by 5 publications

(2 citation statements)

References 40 publications

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“…17 Liang et al have reported synthesis techniques of different nanostructures of PPy and their TE performances. 15 Numerous research works have been reported supporting the compatibility of PPy and PPy/carbonbased material composites as OTE, 18 such as PPy/Graphene nanosheets composites, 19 PPy/reduced graphene oxide composites, 20 PPy/SWCNT composites, 21 PPy/MWCNT composites, 22 PPy/helical carbon nanotube composites, 23 etc.…”

Section: Poly(34e T H Y L E N E D I O X Y T H I O P H E N E ) : P O L...mentioning

confidence: 99%

Polypyrrole/Tin Sulfide Hybrid Nanocomposites as Promising Thermoelectric Materials: A Combined Experimental and DFT Study

Rakshit,

Ghosal,

Jana

et al. 2024

ACS Appl. Energy Mater.

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Conducting polymer-based inorganic/organic nanocomposites has become a popular candidate as eco-friendly thermoelectric (TE) materials in the past few years. This work reports a comprehensive study of the TE properties of tin sulfide (SnS)/polypyrrole (PPy) nanocomposites for the first time. The nanocomposites are prepared via two, low-cost steps: a chemical reaction to synthesize the SnS nanoparticles, followed by an in situ polymerization reaction. The TE properties of these SnS/PPy composites in a temperature interval of 303–373 K are investigated by tuning the content of SnS nanoparticles in the polymer matrix. The observations are discussed based on the results from structure analysis (X-ray diffraction), optical properties (UV–vis), surface morphology analysis (field emission scanning electron microscopy and high-resolution transmission electron microscopy), and chemical composition analysis (Fourier transform infrared spectroscopy, energy dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy). In order to analyze the orbital contribution and the carrier transport mechanism in the SnS/PPy composites, first-principles density functional theory (DFT) calculations are employed. The electronic band structure and density of states spectra clearly dictate that the formation of nanocomposite results in a decrement in the band gap, which might be a reason for the enhanced TE response of the nanocomposites. TE parameters, such as Seebeck coefficient (S), electrical conductivity (σ), and power factor (PF), are enhanced in the composites than in the pure PPy. The study reports maximum S (∼50.67 μV K–1), σ (∼32.26 S cm–1), and PF (∼6 μW m–1 K–2) values for composites containing 20, 10, and 20 wt % of SnS nanoparticles. Among the synthesized samples, the maximum ZT of ∼0.86 × 10–2 is achieved for PPy/20 wt % SnS at 373 K. This work concludes that the inclusion of SnS nanoparticle fillers in the conductive PPy matrix is an efficient route to enhance the TE performance of PPy. The newly fabricated nanocomposite is a novel, low-cost, nontoxic TE material relevant to green energy generation and environmental remediation.

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Section: Poly(34e T H Y L E N E D I O X Y T H I O P H E N E ) : P O L...mentioning

confidence: 99%

Polypyrrole/Tin Sulfide Hybrid Nanocomposites as Promising Thermoelectric Materials: A Combined Experimental and DFT Study

Rakshit,

Ghosal,

Jana

et al. 2024

ACS Appl. Energy Mater.

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“…The synthesis of new efficient materials and for developing enhanced structural materials there is rising research concern towards composite materials derived from conducting polymers like polypyrrole, polythiophene, polyindole, polyacetylene and polyaniline linked with layered inorganic solids and also have been intensively studied due to theirgood environmental stability and high electrical conductivity [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Studies on Optical Characterization of One Pot Chemically Synthesized polypyrrole/Poly (Vinyl Acetate) Composite Thin Films

Shaikh

2023

IJSREM

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In the present research work, the optical properties of one pot chemically synthesized polypyrrole/poly(vinyl acetate) composite films using FeCl3 as an oxidant have been studied. The result of X-ray diffraction (XRD) analysis depicts the amorphous nature of the prepared composites. The surface morphology of prepared sample was analysed through FE-SEM, which shows granular morphology. The ultraviolet-visible (UV-VIS) spectroscopy was employed to study optical parameters. The composite films exhibited strong absorption below 250 nm with well-defined absorption peak at around 225 nm. The optical band gap values of all prepared samples ranges over 2.876 – 3.843 eV. These obtained values of optical parameters suggested that the prepared materials have the potential applications in optoelectronics devices. Key words: optical properties; polypyrrole/poly(vinyl acetate); composite films.

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Carrier transport and thermoelectric property enhancement of polypyrrole-Nio/single-walled carbon nanotube composite system—experimental and DFT study

Chakraborty,

Paul,

Kargupta

et al. 2023

J Mater Sci: Mater Electron

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Polypyrrole Supported Reduced Graphene Oxide Prepared by In Situ Polymerization and Its Thermoelectric Properties

Cited by 5 publications

References 40 publications

Polypyrrole/Tin Sulfide Hybrid Nanocomposites as Promising Thermoelectric Materials: A Combined Experimental and DFT Study

Polypyrrole/Tin Sulfide Hybrid Nanocomposites as Promising Thermoelectric Materials: A Combined Experimental and DFT Study

Studies on Optical Characterization of One Pot Chemically Synthesized polypyrrole/Poly (Vinyl Acetate) Composite Thin Films

Carrier transport and thermoelectric property enhancement of polypyrrole-Nio/single-walled carbon nanotube composite system—experimental and DFT study

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