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Promising Methods for Improving the ...

Li, Jiang.

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Promising Methods for Improving the Thermoelectric Properties of Carbon Nanotube/Insulating Polymer Composites.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Promising Methods for Improving the Thermoelectric Properties of Carbon Nanotube/Insulating Polymer Composites./
Author:	Li, Jiang.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
Description:	106 p.
Notes:	Source: Dissertations Abstracts International, Volume: 83-01, Section: B.
Contained By:	Dissertations Abstracts International83-01B.
Subject:	Materials science. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28320620
ISBN:	9798516064043

Promising Methods for Improving the Thermoelectric Properties of Carbon Nanotube/Insulating Polymer Composites.
Li, Jiang.

Promising Methods for Improving the Thermoelectric Properties of Carbon Nanotube/Insulating Polymer Composites. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 106 p.

Source: Dissertations Abstracts International, Volume: 83-01, Section: B.

Thesis (Ph.D.)--The Florida State University, 2021.

This item must not be sold to any third party vendors.

Thermoelectric technology has been treated as a candidate to convert heat into electricity and reuse the waste heat. By using the body heat, the thermoelectric generator is promising to apply to wearable devices as the power source. The organic thermoelectric materials have drawn more and more attention in such applications due to their good flexibility, low density, low toxicity, low cost, low thermal conductivity, and good processability. In contrast to conductive polymers, the thermoelectric performance of insulating polymers with better processability and lower cost is limited by the low electrical conductivity. In this dissertation, two methods, including polymer pyrolysis and transition metal-polymer coordination, which were reported to improve the electrical conductivity of some insulting polymers were studied in their effects on thermoelectric properties of insulting polymer composites. The results indicate that both these methods effectively enhance the power factor of MWCNT/PAN composites and the thermoelectric performance is comparable to that of conductive polymer composites. Through pyrolysis, a maximum power factor of 18.6 µW/mK2 was obtained from the stabilized MWCNT/PAN, which was almost 3 times higher than that of the MWCNT/PAN. Moreover, both p- and n-type properties were obtained from the pyrolyzed MWCNT/PAN. The power factor of MWCNT/PAN was also improved to 22.3 µW/mK2 through transition metal coordination. The feasibility of these methods on some other insulating polymers has been proved. With the contribution of these methods, more options are provided for the studies of flexible thermoelectric materials with better processability and lower cost.

ISBN: 9798516064043Subjects--Topical Terms:

543314
Materials science.
Subjects--Index Terms:

Coordination

Promising Methods for Improving the Thermoelectric Properties of Carbon Nanotube/Insulating Polymer Composites.
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500 $a Source: Dissertations Abstracts International, Volume: 83-01, Section: B.
500 $a Advisor: Zhang, Mei.
502 $a Thesis (Ph.D.)--The Florida State University, 2021.
506 $a This item must not be sold to any third party vendors.
520 $a Thermoelectric technology has been treated as a candidate to convert heat into electricity and reuse the waste heat. By using the body heat, the thermoelectric generator is promising to apply to wearable devices as the power source. The organic thermoelectric materials have drawn more and more attention in such applications due to their good flexibility, low density, low toxicity, low cost, low thermal conductivity, and good processability. In contrast to conductive polymers, the thermoelectric performance of insulating polymers with better processability and lower cost is limited by the low electrical conductivity. In this dissertation, two methods, including polymer pyrolysis and transition metal-polymer coordination, which were reported to improve the electrical conductivity of some insulting polymers were studied in their effects on thermoelectric properties of insulting polymer composites. The results indicate that both these methods effectively enhance the power factor of MWCNT/PAN composites and the thermoelectric performance is comparable to that of conductive polymer composites. Through pyrolysis, a maximum power factor of 18.6 µW/mK2 was obtained from the stabilized MWCNT/PAN, which was almost 3 times higher than that of the MWCNT/PAN. Moreover, both p- and n-type properties were obtained from the pyrolyzed MWCNT/PAN. The power factor of MWCNT/PAN was also improved to 22.3 µW/mK2 through transition metal coordination. The feasibility of these methods on some other insulating polymers has been proved. With the contribution of these methods, more options are provided for the studies of flexible thermoelectric materials with better processability and lower cost.
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653 $a Electrical conductivity
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