Facile development of carbon nanotube (CNT)-based flexible thermoelectric materials for energy-harvesting applications

Nimra Naeem; Sajid Butt; Sumayya; Zoha Afzal; Muhammad Waseem Akram; Muhammad Irfan; Muhammad Atiq Ur Rehman; Abrar H. Baluch; Ghufran ur Rehman; Muhammad Umer Farooq

doi:10.1039/d4ra02914c

Facile development of carbon nanotube (CNT)-based flexible thermoelectric materials for energy-harvesting applications

Nimra Naeem, Sajid Butt^*, Sumayya, Zoha Afzal, Muhammad Waseem Akram, Muhammad Irfan, Muhammad Atiq Ur Rehman, Abrar H. Baluch, Ghufran ur Rehman, Muhammad Umer Farooq

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

In this study, we investigate the thermoelectric properties of functionalized multi-walled carbon nanotubes (F-MWCNTs) dispersed over a flexible substrate through a facile vacuum filtration route. To improve their interfacial adhesion and dispersion, F-MWCNTs underwent hot-pressing. The heat-treatment has improved the nanotubes' connections and subsequently reduced porosity as well, which results in an increasing electrical conductivity upon increasing temperature of hot-pressing. Thermoelectric power factor (PF) value was greatly increased upon simultaneous heating and pressing of the CNTs and a highest PF value of 3.17 μW m⁻¹ K⁻² at 398 K, has been achieved, which is about 400% higher than that of the as-deposited CNTs without hot pressing. The current study presents a prototype for CNT-based flexible thermoelectric devices which opens up an avenue for the deployment of CNTs into flexible electronics.

Original language	English
Pages (from-to)	569-578
Number of pages	10
Journal	RSC Advances
Volume	15
Issue number	1
DOIs	https://doi.org/10.1039/d4ra02914c
State	Published - 6 Jan 2025

Bibliographical note

Publisher Copyright:
© 2025 The Royal Society of Chemistry.

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering

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10.1039/d4ra02914c

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title = "Facile development of carbon nanotube (CNT)-based flexible thermoelectric materials for energy-harvesting applications",

abstract = "In this study, we investigate the thermoelectric properties of functionalized multi-walled carbon nanotubes (F-MWCNTs) dispersed over a flexible substrate through a facile vacuum filtration route. To improve their interfacial adhesion and dispersion, F-MWCNTs underwent hot-pressing. The heat-treatment has improved the nanotubes' connections and subsequently reduced porosity as well, which results in an increasing electrical conductivity upon increasing temperature of hot-pressing. Thermoelectric power factor (PF) value was greatly increased upon simultaneous heating and pressing of the CNTs and a highest PF value of 3.17 μW m−1 K−2 at 398 K, has been achieved, which is about 400\% higher than that of the as-deposited CNTs without hot pressing. The current study presents a prototype for CNT-based flexible thermoelectric devices which opens up an avenue for the deployment of CNTs into flexible electronics.",

author = "Nimra Naeem and Sajid Butt and Sumayya and Zoha Afzal and \{Waseem Akram\}, Muhammad and Muhammad Irfan and \{Atiq Ur Rehman\}, Muhammad and Baluch, \{Abrar H.\} and Rehman, \{Ghufran ur\} and Farooq, \{Muhammad Umer\}",

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doi = "10.1039/d4ra02914c",

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T1 - Facile development of carbon nanotube (CNT)-based flexible thermoelectric materials for energy-harvesting applications

AU - Naeem, Nimra

AU - Butt, Sajid

AU - Sumayya,

AU - Afzal, Zoha

AU - Waseem Akram, Muhammad

AU - Irfan, Muhammad

AU - Atiq Ur Rehman, Muhammad

AU - Baluch, Abrar H.

AU - Rehman, Ghufran ur

AU - Farooq, Muhammad Umer

PY - 2025/1/6

Y1 - 2025/1/6

N2 - In this study, we investigate the thermoelectric properties of functionalized multi-walled carbon nanotubes (F-MWCNTs) dispersed over a flexible substrate through a facile vacuum filtration route. To improve their interfacial adhesion and dispersion, F-MWCNTs underwent hot-pressing. The heat-treatment has improved the nanotubes' connections and subsequently reduced porosity as well, which results in an increasing electrical conductivity upon increasing temperature of hot-pressing. Thermoelectric power factor (PF) value was greatly increased upon simultaneous heating and pressing of the CNTs and a highest PF value of 3.17 μW m−1 K−2 at 398 K, has been achieved, which is about 400% higher than that of the as-deposited CNTs without hot pressing. The current study presents a prototype for CNT-based flexible thermoelectric devices which opens up an avenue for the deployment of CNTs into flexible electronics.

AB - In this study, we investigate the thermoelectric properties of functionalized multi-walled carbon nanotubes (F-MWCNTs) dispersed over a flexible substrate through a facile vacuum filtration route. To improve their interfacial adhesion and dispersion, F-MWCNTs underwent hot-pressing. The heat-treatment has improved the nanotubes' connections and subsequently reduced porosity as well, which results in an increasing electrical conductivity upon increasing temperature of hot-pressing. Thermoelectric power factor (PF) value was greatly increased upon simultaneous heating and pressing of the CNTs and a highest PF value of 3.17 μW m−1 K−2 at 398 K, has been achieved, which is about 400% higher than that of the as-deposited CNTs without hot pressing. The current study presents a prototype for CNT-based flexible thermoelectric devices which opens up an avenue for the deployment of CNTs into flexible electronics.

UR - https://www.scopus.com/pages/publications/85214974990

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DO - 10.1039/d4ra02914c

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JF - RSC Advances

IS - 1

ER -

Facile development of carbon nanotube (CNT)-based flexible thermoelectric materials for energy-harvesting applications

Abstract

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