Thermoelectric properties of metashale geopolymer with graphite powder in the dry and wet state

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F25%3A00385033" target="_blank" >RIV/68407700:21110/25:00385033 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1063/5.0286174" target="_blank" >https://doi.org/10.1063/5.0286174</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0286174" target="_blank" >10.1063/5.0286174</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Thermoelectric properties of metashale geopolymer with graphite powder in the dry and wet state

Popis výsledku v původním jazyce

The design process of new civil engineering materials (composites) is increasingly focused on two important targets. It is the utilization of alternative cementless binders meeting the circular economy concept and optimization of properties ensuring favorable additional material functions for civil engineering applications. Optimization of thermoelectric properties is an important issue within the design of building materials with energy harvesting potential (conversion of heat to electrical energy) and evaluation of thermoelectric conversion efficiency is crucially dependent on the Seebeck coefficient, electrical conductivity and thermal conductivity parameters. The paper is focused on material characterization of the designed metashale geopolymer with 3 wt. % of graphite powder (GP) by means of basic physical, mechanical, thermal, electrical, and thermoelectric properties. The Seebeck coefficient determined in dry- and wet state were of -27.57 􀁐V􀃂K-1 and -69.78 􀁐V􀃂K-1, respectively. 2.23x10-6. The thermoelectric conversion efficiency indicators represented by the power factor (PF) and the figure of merit (ZT) exhibited a significant increase caused by water presence (PFdry = 1.7x10-15 W􀃂m-1􀃂K-2, ZTdry = 5.9x10-13, PFwet = 9.6x10-11 W􀃂m-1􀃂K-2, ZTwet = 2.6x10-8).

Název v anglickém jazyce

Thermoelectric properties of metashale geopolymer with graphite powder in the dry and wet state

Popis výsledku anglicky

The design process of new civil engineering materials (composites) is increasingly focused on two important targets. It is the utilization of alternative cementless binders meeting the circular economy concept and optimization of properties ensuring favorable additional material functions for civil engineering applications. Optimization of thermoelectric properties is an important issue within the design of building materials with energy harvesting potential (conversion of heat to electrical energy) and evaluation of thermoelectric conversion efficiency is crucially dependent on the Seebeck coefficient, electrical conductivity and thermal conductivity parameters. The paper is focused on material characterization of the designed metashale geopolymer with 3 wt. % of graphite powder (GP) by means of basic physical, mechanical, thermal, electrical, and thermoelectric properties. The Seebeck coefficient determined in dry- and wet state were of -27.57 􀁐V􀃂K-1 and -69.78 􀁐V􀃂K-1, respectively. 2.23x10-6. The thermoelectric conversion efficiency indicators represented by the power factor (PF) and the figure of merit (ZT) exhibited a significant increase caused by water presence (PFdry = 1.7x10-15 W􀃂m-1􀃂K-2, ZTdry = 5.9x10-13, PFwet = 9.6x10-11 W􀃂m-1􀃂K-2, ZTwet = 2.6x10-8).

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA22-00960S" target="_blank" >GA22-00960S: Termoelektrické vlastnosti a schopnost energy harvestingu alkalicky aktivovaných aluminosilikátů s optimalizovanými elektrickými vlastnostmi</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

AIP Conference Proceedings 3315

ISBN

—

ISSN

1551-7616

e-ISSN

1551-7616

Počet stran výsledku

5

Strana od-do

—

Název nakladatele

AIP Publishing, APL, the American Institute of Physics

Místo vydání

Melville, NY

Místo konání akce

Heraklion

Datum konání akce

11. 9. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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