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Article

Thermoelectric Energy Harvesting from Single-Walled Carbon Nanotube Alkali-Activated Nanocomposites Produced from Industrial Waste Materials

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Institute of Construction Materials, Faculty of Civil Engineering, Dresden University of Technology, 01069 Dresden, Germany
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Institute for Materials Science and Max Bergmann Centre of Biomaterials, Dresden University of Technology, 01069 Dresden, Germany
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Dresden Center for Nanoanalysis (DCN), Dresden University of Technology, 01069 Dresden, Germany
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Department of Civil Engineering, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece
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Center for Advancing Electronics Dresden (CfAED), Dresden University of Technology, 01069 Dresden, Germany
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Dresden Center for Computational Materials Science (DCMS), Dresden University of Technology, 01069 Dresden, Germany
*
Authors to whom correspondence should be addressed.
Academic Editor: Werner Blau
Nanomaterials 2021, 11(5), 1095; https://doi.org/10.3390/nano11051095
Received: 31 March 2021 / Accepted: 21 April 2021 / Published: 23 April 2021
A waste-originated one-part alkali-activated nanocomposite is introduced herein as a novel thermoelectric material. For this purpose, single-walled carbon nanotubes (SWCNTs) were utilized as nanoinclusions to create an electrically conductive network within the investigated alkali-activated construction material. Thermoelectric and microstructure characteristics of SWCNT-alkali-activated nanocomposites were assessed after 28 days. Nanocomposites with 1.0 wt.% SWCNTs exhibited a multifunctional behavior, a combination of structural load-bearing, electrical conductivity, and thermoelectric response. These nanocomposites (1.0 wt.%) achieved the highest thermoelectric performance in terms of power factor (PF), compared to the lower SWCNTs’ incorporations, namely 0.1 and 0.5 wt.%. The measured electrical conductivity (σ) and Seebeck coefficient (S) were 1660 S·m−1 and 15.8 µV·K−1, respectively, which led to a power factor of 0.414 μW·m−1·K−2. Consequently, they have been utilized as the building block of a thermoelectric generator (TEG) device, which demonstrated a maximum power output (Pout) of 0.695 µW, with a power density (PD) of 372 nW·m−2, upon exposure to a temperature gradient of 60 K. The presented SWCNT-alkali-activated nanocomposites could establish the pathway towards waste thermal energy harvesting and future sustainable civil engineering structures. View Full-Text
Keywords: alkali-activated nanocomposites; single-walled carbon nanotubes; thermal energy harvesting; thermoelectric generator; multifunctional waste materials; green construction alkali-activated nanocomposites; single-walled carbon nanotubes; thermal energy harvesting; thermoelectric generator; multifunctional waste materials; green construction
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MDPI and ACS Style

Davoodabadi, M.; Vareli, I.; Liebscher, M.; Tzounis, L.; Sgarzi, M.; Paipetis, A.S.; Yang, J.; Cuniberti, G.; Mechtcherine, V. Thermoelectric Energy Harvesting from Single-Walled Carbon Nanotube Alkali-Activated Nanocomposites Produced from Industrial Waste Materials. Nanomaterials 2021, 11, 1095. https://doi.org/10.3390/nano11051095

AMA Style

Davoodabadi M, Vareli I, Liebscher M, Tzounis L, Sgarzi M, Paipetis AS, Yang J, Cuniberti G, Mechtcherine V. Thermoelectric Energy Harvesting from Single-Walled Carbon Nanotube Alkali-Activated Nanocomposites Produced from Industrial Waste Materials. Nanomaterials. 2021; 11(5):1095. https://doi.org/10.3390/nano11051095

Chicago/Turabian Style

Davoodabadi, Maliheh, Ioanna Vareli, Marco Liebscher, Lazaros Tzounis, Massimo Sgarzi, Alkiviadis S. Paipetis, Jian Yang, Gianaurelio Cuniberti, and Viktor Mechtcherine. 2021. "Thermoelectric Energy Harvesting from Single-Walled Carbon Nanotube Alkali-Activated Nanocomposites Produced from Industrial Waste Materials" Nanomaterials 11, no. 5: 1095. https://doi.org/10.3390/nano11051095

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