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Lignin doped carbon nanotube yarns for improved thermoelectric efficiency
Date
2020
Abstract
Due to ever increasing public awareness of the deteriorating planetary health condition associated with climate change and increasing carbon emissions, sustainable energy development has come sharply into focus. Here, a thermoelectric material is produced, which consists of macroscopic carbon nanotube yarns (CNTYs) produced continuously from the gasâphase. The CNTYs are doped with lignin, obtained from lignocellulosic waste, and at 23 wt% lignin, electrical conductivity and the Seebeck coefficient are approximately doubled when compared to pristine CNTY samples. As a consequence, the power factor is remarkably improved to 132.2 ÂľW mâ1 Kâ2, more than six times that of the pristine CNTY. A thermoelectric generator device is manufactured, comprising 20 CNTY/lignin nanocomposite yarns, and they exhibit a maximum power output of 3.8 ÂľW, at a temperature gradient of 30 K.
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Description
peer-reviewed
The full text of this article will not be available in ULIR until the embargo expires on the 24/09/2021
Publisher
John Wiley & Sons, Inc.
Citation
Advanced Sustainable Systems;4 (11), 2000147
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Funding Information
Horizon 2020, European Union (EU)