Poly(3,4-ethylenedioxythiophene)/Te/Single-Walled Carbon Nanotube Composites with High Thermoelectric Performance Promoted by Electropolymerization

Yin, Sixing; Lu, W. T.; Wu, Ruikai; Fan, Wusheng; Guo, Cun‐Yue; Chen, Guangming

doi:10.1021/acsami.9b17947

Cited by 41 publications

(22 citation statements)

References 39 publications

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“…Consequently, the coated GF-TE paste (1:1) was selected for further experiments, as it exhibited the highest TE efficiency. In general, an ordered molecular structure is able to positively contribute on carrier transportation phenomena [46]. The synthesized Te NWs were characterized by XRD, as shown in Figure 5a.…”

Section: Te Performance Of the Nanoparticle-based Pastes Coated Onto Gf Fabricmentioning

confidence: 99%

Carbon fiber/epoxy composite laminates as through-thickness thermoelectric generators

Karalis

Tzounis

Tsirka

et al. 2022

Composites Science and Technology

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This research study demonstrates a carbon fiber reinforced polymer (CFRP) composite laminate with an embedded thermoelectric (TE) enabled glass fiber (GF) ply. The TE-enabled GF functional ply was purposely laminated to create a structural through-thickness thermoelectric generator (TEG). Simultaneously, the highly conductive carbon fiber (CF) reinforcing phase served as electrodes for the device. Tellurium nanowires (NWs) were incorporated in various mass ratios in a PEDOT:PSS matrix to produce different TE pastes. The TE pastes were deposited on the GF fabrics via a facile blade coating technique. The highest power factor (57.2 μW/m . K 2 , in-plane Seebeck coefficient +189 μV/K) was exhibited by the coating formed by the paste with a specific mass ratio of 1:1 (Te NWs to PEDOT:PSS). The TE-enabled GF plies were employed for the manufacturing of both 10-ply unidirectional (UD), and cross-ply composite laminates. The UD laminate generated a TE voltage (VTEG) of 8.4 mV and a TE current (Isc) of 597.4 μA for 100 K through-thickness temperature difference (ΔT) i.e., a maximum power of 1.3 μW. The temperature sensing capability of the TEG-laminate was also demonstrated. Three-point bending tests indicated a ca. 10% decrease in flexural properties with the integration of the TEG functionality for the UD configuration.

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Section: Te Performance Of the Nanoparticle-based Pastes Coated Onto Gf Fabricmentioning

confidence: 99%

Carbon fiber/epoxy composite laminates as through-thickness thermoelectric generators

Karalis

Tzounis

Tsirka

et al. 2022

Composites Science and Technology

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“…This strong G-band peak indicates a large quantity of sp2-hybridized carbon atoms in the SWCNTs. [4b] The peak shift of G band from 1590 to 1592 cm −1 indicates the existence of interfacial π-π interaction between SWCNTs and PEDOT for the IL-free composites, [19] implying charge transfer between SWCNTs and PEDOT. The charge transfer and strong interfacial interaction are further enhanced in view of band shifts to 1593 cm −1 for the IL composite.…”

Section: Te Performances Of Flexible Composite Filmsmentioning

confidence: 99%

Mechanically Robust and Flexible Films of Ionic Liquid‐Modulated Polymer Thermoelectric Composites

Deng

et al. 2021

Adv Funct Materials

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In the recent decade, polymer thermoelectric (TE) composite has witnessed explosive achievements to address energy generation and utilization. Besides the significant progress in enhancement of TE performance, the high mechanical property has received increasing attention, being important for practical applications in complex environments. However, the mechanical performance has always been improved at the sacrifice of TE performance, and vice versa, which poses a great challenge. Here, ionic liquid (IL)-assisted fabrication of flexible films of polymer TE composites with simultaneously high TE and mechanical performances based on poly(3,4-ethylenedioxythiophene):poly(styr enesulfonate) (PEDOT:PSS), polyvinyl alcohol (PVA), and single-walled carbon nanotubes (SWCNTs) are reported. The resultant composite shows a high TE performance with a power factor of 106.1 ± 8.2 µW m −1 K −2 at room temperature, and strong mechanical robustness with a tensile modulus of 4.2 ± 0.5 GPa and fracture strength of 136.5 ± 10.6 MPa. It is the most mechanically robust TE composite known with such a high power factor in the available literature. The present study provides a promising way to help address the longstanding and intractable issue of inferior mechanical performance of TE composites without compromising TE performance.

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“…In general, carbon nanotubes (CNTs) have been of interest to researchers because they frequently exhibit superior flame retardancy, mechanical and electronic properties. Advanced improvements when compared with conventional flame retardant containing halogen, they are free of toxic smoke or corrosive fumes during combustion [ 8 , 9 , 10 ]. By adding 2 wt% carbon nanotube flame retardant to polymer, flame retardancy can be significantly improved without damaging other properties of the polymer.…”

Section: Introductionmentioning

confidence: 99%

Thermal Degradation Behavior of Epoxy Resin Containing Modified Carbon Nanotubes

Bao

Wang

2021

Polymers

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Via the surface-grafting of carbon nanotubes (CNTs) with a silicon-containing flame retardant (PMDA), a novel flame retardant CNTs-PMDA was synthesized. The flame retardancy was tested by cone calorimeter. Compared with pure epoxy resin, the total heat release (THR) and peak heat release rate (PHRR) of epoxy resin containing CNTs-PMDA were significantly reduced, by 44.6% and 24.6%, respectively. Furthermore, thermal degradation behavior of epoxy resin based composite was studied by the thermogravimetric analysis with differences in heating rates. The kinetic parameters of the thermal degradation for epoxy resin composites were evaluated by the Kissinger method and Flynn-Wall-Ozawa method. The results suggested that activation energy values of epoxy resin containing CNTs-PMDA in thermal degradation process were higher than those of pure epoxy resin in the final stage of the thermal degradation process, which was closely related to the final formation of char layer residues. Finally, the results from Dynamic mechanical thermal analysis (DMTA) and Scanning electron microscopy (SEM) measurements exhibited that the functionalization of CNTs with PMDA obviously improved the dispersion of CNTs in the epoxy resin matrix.

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Poly(3,4-ethylenedioxythiophene)/Te/Single-Walled Carbon Nanotube Composites with High Thermoelectric Performance Promoted by Electropolymerization

Cited by 41 publications

References 39 publications

Carbon fiber/epoxy composite laminates as through-thickness thermoelectric generators

Carbon fiber/epoxy composite laminates as through-thickness thermoelectric generators

Mechanically Robust and Flexible Films of Ionic Liquid‐Modulated Polymer Thermoelectric Composites

Thermal Degradation Behavior of Epoxy Resin Containing Modified Carbon Nanotubes

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