Thermoelectric performance of Fe2ALV/CNT-based alloys

Elsehly, Emad M.; El-Khouly, A.; Khovaylo, Vladimir; Adam, A.M.; Altowyan, Abeer S.; Alruqi, Bandar; Alqannas, Haifa S.

doi:10.2298/tsci221005194e

Cited by 4 publications

(1 citation statement)

References 31 publications

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“…CNTs are 1D materials with hollow tubular structures, low thermal conductivity, high conductivity, and large surface area, which can change the carrier density and Fermi energy level and improve the thermoelectric properties when they are doped into composites. [23][24][25][26][27] Compared with EG, [15] reduced graphene oxide, [20] and graphene nanosheets [21] doped into cement at the same content, the thermal conductivity of carbon nanotubes is low. Zuo et al first homogeneously compounded CNTs and CF into cement, and when 0.4 wt% of CF and 1.0 wt% of CNTs were added, the absolute thermal potential changed from positive to negative, from 4.82 to 3.88 μV K À1 .…”

Section: Introductionmentioning

confidence: 99%

Thermoelectric Power Factor of Boron‐Doped Carbon Nanotubes Reinforced Cementitious Composites

Wei,

Wang,

Hui

et al. 2023

Energy Tech

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In recent years, fossil fuel emissions and human activities have generated a lot of heat energy, causing environmental temperatures to rise. Thermoelectric cementitious composites that use temperature difference power generation to achieve the transformation of thermal and electrical energy can achieve a reduction in urban environmental temperature and alleviate resource depletion. However, the low thermoelectric conversion efficiency at this stage restricts its development. In this paper, boron‐doped carbon nanotubes (B‐CNTs) are proposed to improve the thermoelectric properties of cement materials by doping boron into carbon nanotubes through the thermal diffusion method. At H3BO3: CNTs = 1:4, the synthesized boron‐doped carbon nanotubes improved the Seebeck coefficient, which was mainly due to the increase in defect content and the appearance of additional phases around the Fermi energy level, leading to enhanced thermoelectric properties due to the increase in carrier scattering intensity. The thermoelectric optimum of the cement matrix composite with 7.0 wt% boron‐doped carbon nanotube content was 1.1×10‐4, which was three times higher than that of the undoped carbon nanotube. This paper provides a research idea to modify the thermoelectric properties of the material by doping the carbon material.This article is protected by copyright. All rights reserved.

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Section: Introductionmentioning

confidence: 99%

Thermoelectric Power Factor of Boron‐Doped Carbon Nanotubes Reinforced Cementitious Composites

Wei,

Wang,

Hui

et al. 2023

Energy Tech

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Integrated First Principles and Experimental Investigation of Thermoelectric Transport in Zr/Ti Half‐Heusler‐Type High Entropy Alloys

Adamo,

Srivastava,

Legese

et al. 2024

Energy Tech

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A novel high‐entropy alloy based on zirconium (Zr) and titanium (Ti) within the half‐Heusler (hH) system is successfully synthesized via arc melting followed by heat treatment. Structural and microstructural analyses are conducted utilizing scanning electron microscopy, electron probe microanalysis, and X‐Ray diffractometry, revealing a cubic hH structure (F4¯3m). Investigation of the thermoelectric transport properties across a temperature range from room temperature to 973 K is indicated by favorable thermoelectric figure of merit values at elevated temperature regimes. Remarkably, the experimental thermal data exhibit excellent agreement with density functional theory calculations about phonon dispersion, phonon group velocity, and Grüneisen parameters, elucidating the role of crystal distortion‐induced anharmonicity in retarding phonon heat transport, thereby enhancing its suitability for thermoelectric applications.

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Synthesis and Assessment of Au-doped Sb2Te3 Microstructures for Magnetic and Thermoelectric Properties

Komal,

Mansoor,

Sohail

et al. 2024

Physica B: Condensed Matter

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Thermoelectric performance of Fe2ALV/CNT-based alloys

Cited by 4 publications

References 31 publications

Thermoelectric Power Factor of Boron‐Doped Carbon Nanotubes Reinforced Cementitious Composites

Thermoelectric Power Factor of Boron‐Doped Carbon Nanotubes Reinforced Cementitious Composites

Integrated First Principles and Experimental Investigation of Thermoelectric Transport in Zr/Ti Half‐Heusler‐Type High Entropy Alloys

Synthesis and Assessment of Au-doped Sb2Te3 Microstructures for Magnetic and Thermoelectric Properties

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