Ding, Jinxue ; Tian, Chuanmu ; Li, Wei ; Spielmann, Jonas ; Maheu, Clément ; Kintop, Nina ; Widenmeyer, Marc ; Skokov, Konstantin P. ; Hofmann, Jan P. ; Kramm, Ulrike I. ; Xie, Wenjie ; Weidenkaff, Anke (2024)
Tuning anisotropic thermoelectric properties of TiS2–δ compounds via intercalating iron.
In: Journal of the European Ceramic Society, 44 (5)
doi: 10.1016/j.jeurceramsoc.2023.12.059
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Layered TiS2 is of great potential in thermoelectrics for room temperature and medium temperature applications due to its tunable transport properties, low environmental impact, low cost, and lightweight. Herein, we prepared FexTiS2–δ with x varying from 0 to 0.05 through a two-step process, involving initial synthesis in sealed tubes followed by spark plasma sintering. Mössbauer spectroscopy indicated that Fe atoms occupy the octahedral sites in the van der Waals gaps and exist in the form of Fe2+ with a high spin state. FexTiS2–δ with x ≤ 0.02 exhibit high in-plane power factors, reaching an average of ∼ 1.2 mWm–1K–2. The structural disorder caused by Fe intercalation leads to a significant decrease in out-of-plane lattice thermal conductivity. The anisotropy in the figure of merit, ZT, of FexTiS2–δ is suppressed due to Fe intercalation. Fe0.01TiS2–δ possesses the highest ZT of 0.39 at 625 K along the in-plane direction.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Ding, Jinxue ; Tian, Chuanmu ; Li, Wei ; Spielmann, Jonas ; Maheu, Clément ; Kintop, Nina ; Widenmeyer, Marc ; Skokov, Konstantin P. ; Hofmann, Jan P. ; Kramm, Ulrike I. ; Xie, Wenjie ; Weidenkaff, Anke |
| Art des Eintrags: | Bibliographie |
| Titel: | Tuning anisotropic thermoelectric properties of TiS2–δ compounds via intercalating iron |
| Sprache: | Englisch |
| Publikationsjahr: | Mai 2024 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of the European Ceramic Society |
| Jahrgang/Volume einer Zeitschrift: | 44 |
| (Heft-)Nummer: | 5 |
| DOI: | 10.1016/j.jeurceramsoc.2023.12.059 |
| Kurzbeschreibung (Abstract): | Layered TiS2 is of great potential in thermoelectrics for room temperature and medium temperature applications due to its tunable transport properties, low environmental impact, low cost, and lightweight. Herein, we prepared FexTiS2–δ with x varying from 0 to 0.05 through a two-step process, involving initial synthesis in sealed tubes followed by spark plasma sintering. Mössbauer spectroscopy indicated that Fe atoms occupy the octahedral sites in the van der Waals gaps and exist in the form of Fe2+ with a high spin state. FexTiS2–δ with x ≤ 0.02 exhibit high in-plane power factors, reaching an average of ∼ 1.2 mWm–1K–2. The structural disorder caused by Fe intercalation leads to a significant decrease in out-of-plane lattice thermal conductivity. The anisotropy in the figure of merit, ZT, of FexTiS2–δ is suppressed due to Fe intercalation. Fe0.01TiS2–δ possesses the highest ZT of 0.39 at 625 K along the in-plane direction. |
| Freie Schlagworte: | FexTiS2–δ, intercalation, sulfur deficiency, anisotropy, thermoelectric properties |
| Zusätzliche Informationen: | Online first 16 December 2023. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Funktionale Materialien 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Oberflächenforschung 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Werkstofftechnik und Ressourcenmanagement |
| Hinterlegungsdatum: | 25 Jan 2024 06:29 |
| Letzte Änderung: | 30 Jan 2024 11:36 |
| PPN: | 515000663 |
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