Thermoelectric properties of polyvinylpyrrolidone/polyaniline‐mixed <scp>Bi<sub>2</sub>Te<sub>3</sub></scp> composites prepared by electrospinning

Khan, Jan Sher; Akram, Rizwan; Hussain, Mazhar; Rafique, Saima; Kayani, Farrukh Bashir; Rehman, Anis

doi:10.1002/pc.27276

Cited by 4 publications

(5 citation statements)

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“…Among various types of inorganic–organic TE material, metal chalcogenide/CP nanocomposites have gained much attention in past years. , TE properties of numerous metal chalcogenide/CP nanocomposites, such as PbTe/PANI, Bi 2 Te 3 /PANI, Bi 2 Te 3 /PPy, Bi 2 Te 3 /PEDOT:PSS, Bi 2 Te 3 /CNT/PEDOT, Bi 2 Te 3 /PVP, Ag 2 Te/PANI, Bi 2 Se 3 /PANI, Bi 2 Se 3 /PVDF, Bi 0.5 Sb 1.5 Te 3 /PANI, Bi 2 Te 3 /P3HT, MoS 2 /PEDOT:PSS, , CdS/PANI, WS 2 /PEDOT:PSS, Cu 2 Se nanowire/PEDOT:PSS, SnSe/PEDOT:PSS, SnSe/PTh/MWCNT, SnS/PANI, etc. have already been investigated in detail.…”

Section: Introductionmentioning

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: Introductionmentioning

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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“…have been discovered. [8][9][10] Due to the unique phonon-electron transport properties of 2D nanostructures, they exhibit remarkable ZT values, making them extremely attractive for thermoelectricity applications.…”

Section: Introductionmentioning

confidence: 99%

“…In the past few decades, 2D nano‐thermoelectric materials such as Bi 2 Te 3 , SnSe, etc. have been discovered 8–10 . Due to the unique phonon–electron transport properties of 2D nanostructures, they exhibit remarkable ZT values, making them extremely attractive for thermoelectricity applications.…”

Section: Introductionmentioning

confidence: 99%

Preparation of high‐performance bismuthene thermoelectric composites doped with graphene using UV‐curing 3D printing technology

Meng,

Yang,

Han

et al. 2024

Polymer Composites

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Thermoelectric materials are of tremendous interest due to their capacity to convert waste heat into useful electrical energy. Bismuthene nanosheets (BiNS) have recently emerged as a promising material for thermoelectric applications because of their unique two‐dimensional structure and low thermal conductivity. However, the development of efficient and scalable methods for preparing BiNS‐based thermoelectric composites with improved performance remains a challenge. In this study, we reported a novel approach to preparing a thin film BiNS‐based thermoelectric composite with UV‐curing 3D printing technology. The composite was prepared using BiNS as the filler and a UV‐sensitive resin as the matrix, which contained 5 vol% graphene as the third phase to enhance the thermoelectric performance of the composite. The results showed that the prepared composite exhibited stable thermoelectric performance, with a maximum power factor of 311.79 ± 13.90 μW/mK2 when the volume fraction of BiNS reached 95 vol%. The electrical conductivity of the composite improved significantly as the volume fraction of BiNS increased from 75 to 95 vol%. The Seebeck coefficient remained essentially unchanged in the range of 70.1–70.7 μV/K. These findings demonstrate the potential of BiNS‐based thermoelectric composites prepared by UV‐curing 3D printing technology for practical applications in energy harvesting and cooling devices.Highlights A simple, efficient and scalable method for BiNS thermoelectric composites. UV‐curing 3D printing technology was used for fabrication. The BiNS composite exhibited stable thermoelectric performance. The electrical conductivity of the composite improved significantly. This BiNS composite showed great potential in thermoelectric application.

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“…[3][4][5][6][7] PVP owns its biocompatibility to its chemical structure resembling amino acids, which are widely discussed in the literature. [8][9][10][11][12] The bentonite nanoclay is mostly montmorillonite (MMT)-based natural reinforcement, 13 which is abundant in nature. Thanks to their biocompatibility, nanoclays are widely utilized for biomedical applications.…”

Section: Introductionmentioning

confidence: 99%

“…PVP is a widely utilized water‐soluble and non‐toxic biocompatible polymer 3–7 . PVP owns its biocompatibility to its chemical structure resembling amino acids, which are widely discussed in the literature 8–12 . The bentonite nanoclay is mostly montmorillonite (MMT)‐based natural reinforcement, 13 which is abundant in nature.…”

Section: Introductionmentioning

confidence: 99%

Biocompatible organic coating fabrication via polymer/clay nanocomposites: Evaluation of mechanical improvements

Kandemir,

Donmez,

Can

2023

Polymer Composites

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This study focuses on achieving mechanical enhancements in biocompatible organic coatings. A solvent‐based method is employed to produce biocompatible nanocomposites using polyvinylpyrrolidone (PVP) and bentonite nanoclays (BNT) as constituents to achieve this objective. Subsequently, the nanocomposites are spin‐coated onto a glass substrate, resulting in smooth and defect‐free films with a thickness of 5 μm. Through instrumented‐indentation testing, it is observed that BNT reinforcement leads to significant improvements in mechanical properties. Specifically, the addition of 0.5, 1, and 5 wt% of BNT in PVP results in enhancements of 105%, 77%, and 430% in elastic modulus, respectively, while hardness is improved by 166%, 211%, and 448%, respectively. The considerable improvements in the composite modulus cannot be adequately explained by assuming perfect adhesion between the constituents of the composite (as suggested by the Halpin–Tsai model) or by considering the contributions from the interface/network of silicate layers (as proposed by the Modified Halpin–Tsai model). Instead, the significant enhancements in hardness and modulus values are primarily attributed to a notable increase in the BNT volume fraction, ranging from 4 to 9 times, occurring under the Berkovich tip due to the aggregated silicate layers. The findings highlight the role of aggregated silicate layers in enhancing both hardness and modulus and contribute to the development of advanced biocompatible coatings with improved mechanical properties.Highlights Enhanced mechanical properties in biocompatible coatings. Biocompatible nanocomposites of polyvinylpyrrolidone (PVP) and bentonite nanoclays (BNT). Spin‐coated nanocomposite films on glass: smooth, defect‐free, 5 μm thick. BNT reinforcement boosts elastic modulus and hardness of PVP. Aggregated silicate layers under compression drive substantial mechanical improvements.

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Thermoelectric properties of polyvinylpyrrolidone/polyaniline‐mixed Bi₂Te₃ composites prepared by electrospinning

Cited by 4 publications

References 50 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

Preparation of high‐performance bismuthene thermoelectric composites doped with graphene using UV‐curing 3D printing technology

Biocompatible organic coating fabrication via polymer/clay nanocomposites: Evaluation of mechanical improvements

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Thermoelectric properties of polyvinylpyrrolidone/polyaniline‐mixed Bi2Te3 composites prepared by electrospinning

Cited by 4 publications

References 50 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

Preparation of high‐performance bismuthene thermoelectric composites doped with graphene using UV‐curing 3D printing technology

Biocompatible organic coating fabrication via polymer/clay nanocomposites: Evaluation of mechanical improvements

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Thermoelectric properties of polyvinylpyrrolidone/polyaniline‐mixed Bi₂Te₃ composites prepared by electrospinning