Thermoelectric properties of reduced TiO2 -SrF2 composites
File(s)
Accepted version
Author(s)
Sadia, Yatir
Kerherve, Gwilherm
Skinner, Stephen
Type
Journal Article
Abstract
Highly stable thermoelectric materials based on inexpensive elements have great potential for heat recovery in high temperature applications. TiO2-d and SrTiO3 based thermoelectric materials are of great interest due to this reason. In this study TiO2–SrF2 based compounds were produced, to study the effect of fluorine on the thermoelectric properties of TiO2 type materials. From XPS measurements it is clear that some exchange from the TiO2–SrF2 happens forming a TiOxFy type phase. The electronic properties of the compound are very similar to the electronic properties of reduced TiO2 while some improvement is seen in the reduction of the thermal conductivity. A higher activation energy in the SrF2 rich samples might allow for increased electronic conductivity at higher temperatures interesting for further studies.
Date Issued
2024-11-01
Date Acceptance
2024-07-28
Citation
Ceramics International, 2024, 50 (Part A), pp.41117-41123
ISSN
0272-8842
Publisher
Elsevier
Start Page
41117
End Page
41123
Journal / Book Title
Ceramics International
Volume
50
Issue
Part A
Copyright Statement
Copyright © 2024 Elsevier Ltd and Techna Group S.r.l. This is the author’s accepted manuscript made available under a CC-BY licence in accordance with Imperial’s Research Publications Open Access policy (www.imperial.ac.uk/oa-policy)
License URL
Identifier
https://www.sciencedirect.com/science/article/pii/S0272884224033662
Publication Status
Published
Article Number
21
Date Publish Online
2024-07-29