Experimental investigation of Seebeck effect in metakaolin-based geopolymer

Experimental investigation of Seebeck effect in metakaolin-based geopolymer

This paper reports the Seebeck effect of metakaolin-based geopolymer and discusses potential mechanisms. Results show that metakaolin-based geopolymer is a P-type thermoelectric material with very high Seebeck coefficient of around 2000 µV/°C, four orders higher than the normal PC paste. Furthermore...

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Bibliographic Details
Main Authors: Li, Junxia, Tay, Bernie Wee Yuan, Lei, Jiawei, Yang, En-Hua
Other Authors: School of Civil and Environmental Engineering
Format: Article
Language:English
Published: 2022
Subjects:
Engineering::Civil engineering
Seebeck Effect
Metakaolin
Online Access:https://hdl.handle.net/10356/161657
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Institution: Nanyang Technological University
Language: English
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Summary:This paper reports the Seebeck effect of metakaolin-based geopolymer and discusses potential mechanisms. Results show that metakaolin-based geopolymer is a P-type thermoelectric material with very high Seebeck coefficient of around 2000 µV/°C, four orders higher than the normal PC paste. Furthermore, metakaolin-based geopolymers exhibit a superior thermoelectric figure of merit (ZT) of around 10−4, six orders higher than the normal PC paste. This suggests metakaolin-based geopolymer not only can be used as a thermal couple for temperature sensing but also has great potential to be used as an energy generator for thermal energy harvesting.

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