Thermoelectric Properties of Carbon Nanotube and Nanofiber Based Ethylene‐Octene Copolymer Composites for Thermoelectric Devices

Abstract

Polymer composites have been created from multiwalled carbon nanotubes or carbon nanofibers and ethylene-octene copolymer. The composites have thermoelectric properties and exhibit thermoelectric effect, that is, the conversion of temperature differences into electricity. The thermoelectric efficiency of created composites with nanotube or nanofiber concentration of 30 wt% evaluated by a thermoelectric power at room temperature is 13.3 μV/K and 14.2 μV/K, respectively. The flexible thermoelectric device (thermopile) was constructed with three different composite legs to produce electric current and the output voltage was measured in the range of temperature difference from −15 to 25°C.

Multifunctional flexible and stretchable polyurethane/carbon nanotube strain sensor for human breath monitoring

“…In our recent article, the flexible thermopile based on the polymeric composites filled with different types of carbon fillers was demonstrated . Moreover, the authors in a very recent paper showed that the thermoelectric power of macroscopic graphene composite varies in a gas environment defined by the molecular mass of adsorbed gas molecules . In other areas such as gas permeation through the CNT membrane, the published data clearly showed that hydrocarbon gases exhibit higher permeability than noncarbohydrates .…”

“…30 Moreover, the authors in a very recent paper showed that the thermoelectric power of macroscopic graphene composite varies in a gas environment defined by the molecular mass of adsorbed gas molecules. 31 In other areas such as gas permeation through the CNT membrane, the published data clearly showed that hydrocarbon gases exhibit higher permeability than noncarbohydrates. 21 Our recent measurements further indicated that the permeation rate can be conveniently stimulated by an electric current.…”

Lignin Doped Carbon Nanotube Yarns for Improved Thermoelectric Efficiency

“…The only exception is MWCNT-PDDA/MWCNT-DOC/PEDOT, which exhibits slightly higher PF than that of CNTY/lignin in the present study, due to the high content of PEDOT, and the combination of LbL assembly with electrochemical polymerization to create synergy capable of producing a high power factor. [16] [27] MWCNT/ PVP Mixing 0.6 [28] PEI/MWCNT/ PVP Mixing 1.98 [28] P3HT/MWCNT Mixing 6 [29] WPU/MWCNT/PEDOT:PSS Mixing 1.41 [30] PEDOT:PSS/MWCNT In situ polymerization 2.29 × 10 −1 [31] MWCNT/Nafion Mixing 0.75 [32] MWCNT-PDDA/MWCNT-DOC/PEDOT LbL + In situ polymerization 155 [16] www.advancedsciencenews.com © 2020 Wiley-VCH GmbH…”

Synthesis of Inorganic Nanocomposites by Selective Introduction of Metal Complexes into a Self‐Assembled Block Copolymer Template

“…Inorganic nanocomposites have characteristic structures that feature expanded interfaces, quantum effects, and restrained crack propagation. These structures are promising for the improvement of many materials including thermoelectric materials [1][2][3][4][5], photocatalysts [6][7][8][9][10], and structural materials with excellent mechanical properties [11][12][13][14][15][16]. Precise control of the inorganic nanocomposites' morphology [17][18][19][20], size [21][22][23][24], and chemical composition [25][26][27] is very important for these applications.…”