Ba6−3xNd8+2xTi18O54 Tungsten Bronze: A New High-Temperature n-Type Oxide Thermoelectric

Feridoon Azough, Robert Freer, Stephen R. Yeandel, Jakub D. Baran, Marco Molinari, Stephen C. Parker, Emmanuel Guilmeau, Demie Kepaptsoglou, Quentin Ramasse, Andy Knox, Duncan Gregory, Douglas Paul, Manosh Paul, Andrea Montecucco, Jonathan Siviter, Paul Mullen, Wenguan Li, Guang Han, Elena A. Man, Hasan Baig & 4 others Tapas Mallick, Nazmi Sellami, Gao Min, Tracy Sweet

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Semiconducting Ba6−3xNd8+2xTi18O54 ceramics (with x = 0.00 to 0.85) were synthesized by the mixed oxide route followed by annealing in a reducing atmosphere; their high-temperature thermoelectric properties have been investigated. In conjunction with the experimental observations, atomistic simulations have been performed to investigate the anisotropic behavior of the lattice thermal conductivity. The ceramics show promising n-type thermoelectric properties with relatively high Seebeck coefficient, moderate electrical conductivity, and temperature-stable, low thermal conductivity; For example, the composition with x = 0.27 (i.e., Ba5.19Nd8.54Ti18O54) exhibited a Seebeck coefficient of S1000K = 210 µV/K, electrical conductivity of σ1000K = 60 S/cm, and thermal conductivity of k1000K = 1.45 W/(m K), leading to a ZT value of 0.16 at 1000 K.

LanguageEnglish
Pages1894-1899
Number of pages6
JournalJournal of Electronic Materials
Volume45
Issue number3
Early online date30 Dec 2015
DOIs
Publication statusPublished - Mar 2016
Externally publishedYes

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Tungsten
Bronze
bronzes
Oxides
Thermal conductivity
tungsten
thermal conductivity
Seebeck coefficient
Seebeck effect
oxides
ceramics
electrical resistivity
mixed oxides
Temperature
routes
Annealing
atmospheres
annealing
Chemical analysis
simulation

Cite this

Azough, Feridoon ; Freer, Robert ; Yeandel, Stephen R. ; Baran, Jakub D. ; Molinari, Marco ; Parker, Stephen C. ; Guilmeau, Emmanuel ; Kepaptsoglou, Demie ; Ramasse, Quentin ; Knox, Andy ; Gregory, Duncan ; Paul, Douglas ; Paul, Manosh ; Montecucco, Andrea ; Siviter, Jonathan ; Mullen, Paul ; Li, Wenguan ; Han, Guang ; Man, Elena A. ; Baig, Hasan ; Mallick, Tapas ; Sellami, Nazmi ; Min, Gao ; Sweet, Tracy. / Ba6−3xNd8+2xTi18O54 Tungsten Bronze : A New High-Temperature n-Type Oxide Thermoelectric. In: Journal of Electronic Materials. 2016 ; Vol. 45, No. 3. pp. 1894-1899.
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abstract = "Semiconducting Ba6−3xNd8+2xTi18O54 ceramics (with x = 0.00 to 0.85) were synthesized by the mixed oxide route followed by annealing in a reducing atmosphere; their high-temperature thermoelectric properties have been investigated. In conjunction with the experimental observations, atomistic simulations have been performed to investigate the anisotropic behavior of the lattice thermal conductivity. The ceramics show promising n-type thermoelectric properties with relatively high Seebeck coefficient, moderate electrical conductivity, and temperature-stable, low thermal conductivity; For example, the composition with x = 0.27 (i.e., Ba5.19Nd8.54Ti18O54) exhibited a Seebeck coefficient of S1000K = 210 µV/K, electrical conductivity of σ1000K = 60 S/cm, and thermal conductivity of k1000K = 1.45 W/(m K), leading to a ZT value of 0.16 at 1000 K.",
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author = "Feridoon Azough and Robert Freer and Yeandel, {Stephen R.} and Baran, {Jakub D.} and Marco Molinari and Parker, {Stephen C.} and Emmanuel Guilmeau and Demie Kepaptsoglou and Quentin Ramasse and Andy Knox and Duncan Gregory and Douglas Paul and Manosh Paul and Andrea Montecucco and Jonathan Siviter and Paul Mullen and Wenguan Li and Guang Han and Man, {Elena A.} and Hasan Baig and Tapas Mallick and Nazmi Sellami and Gao Min and Tracy Sweet",
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Azough, F, Freer, R, Yeandel, SR, Baran, JD, Molinari, M, Parker, SC, Guilmeau, E, Kepaptsoglou, D, Ramasse, Q, Knox, A, Gregory, D, Paul, D, Paul, M, Montecucco, A, Siviter, J, Mullen, P, Li, W, Han, G, Man, EA, Baig, H, Mallick, T, Sellami, N, Min, G & Sweet, T 2016, 'Ba6−3xNd8+2xTi18O54 Tungsten Bronze: A New High-Temperature n-Type Oxide Thermoelectric', Journal of Electronic Materials, vol. 45, no. 3, pp. 1894-1899. https://doi.org/10.1007/s11664-015-4275-6

Ba6−3xNd8+2xTi18O54 Tungsten Bronze : A New High-Temperature n-Type Oxide Thermoelectric. / Azough, Feridoon; Freer, Robert; Yeandel, Stephen R.; Baran, Jakub D.; Molinari, Marco; Parker, Stephen C.; Guilmeau, Emmanuel; Kepaptsoglou, Demie; Ramasse, Quentin; Knox, Andy; Gregory, Duncan; Paul, Douglas; Paul, Manosh; Montecucco, Andrea; Siviter, Jonathan; Mullen, Paul; Li, Wenguan; Han, Guang; Man, Elena A.; Baig, Hasan; Mallick, Tapas; Sellami, Nazmi; Min, Gao; Sweet, Tracy.

In: Journal of Electronic Materials, Vol. 45, No. 3, 03.2016, p. 1894-1899.

Research output: Contribution to journalArticle

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T1 - Ba6−3xNd8+2xTi18O54 Tungsten Bronze

T2 - Journal of Electronic Materials

AU - Azough, Feridoon

AU - Freer, Robert

AU - Yeandel, Stephen R.

AU - Baran, Jakub D.

AU - Molinari, Marco

AU - Parker, Stephen C.

AU - Guilmeau, Emmanuel

AU - Kepaptsoglou, Demie

AU - Ramasse, Quentin

AU - Knox, Andy

AU - Gregory, Duncan

AU - Paul, Douglas

AU - Paul, Manosh

AU - Montecucco, Andrea

AU - Siviter, Jonathan

AU - Mullen, Paul

AU - Li, Wenguan

AU - Han, Guang

AU - Man, Elena A.

AU - Baig, Hasan

AU - Mallick, Tapas

AU - Sellami, Nazmi

AU - Min, Gao

AU - Sweet, Tracy

N1 - No record of this on Eprints. HN 07/11/2017

PY - 2016/3

Y1 - 2016/3

N2 - Semiconducting Ba6−3xNd8+2xTi18O54 ceramics (with x = 0.00 to 0.85) were synthesized by the mixed oxide route followed by annealing in a reducing atmosphere; their high-temperature thermoelectric properties have been investigated. In conjunction with the experimental observations, atomistic simulations have been performed to investigate the anisotropic behavior of the lattice thermal conductivity. The ceramics show promising n-type thermoelectric properties with relatively high Seebeck coefficient, moderate electrical conductivity, and temperature-stable, low thermal conductivity; For example, the composition with x = 0.27 (i.e., Ba5.19Nd8.54Ti18O54) exhibited a Seebeck coefficient of S1000K = 210 µV/K, electrical conductivity of σ1000K = 60 S/cm, and thermal conductivity of k1000K = 1.45 W/(m K), leading to a ZT value of 0.16 at 1000 K.

AB - Semiconducting Ba6−3xNd8+2xTi18O54 ceramics (with x = 0.00 to 0.85) were synthesized by the mixed oxide route followed by annealing in a reducing atmosphere; their high-temperature thermoelectric properties have been investigated. In conjunction with the experimental observations, atomistic simulations have been performed to investigate the anisotropic behavior of the lattice thermal conductivity. The ceramics show promising n-type thermoelectric properties with relatively high Seebeck coefficient, moderate electrical conductivity, and temperature-stable, low thermal conductivity; For example, the composition with x = 0.27 (i.e., Ba5.19Nd8.54Ti18O54) exhibited a Seebeck coefficient of S1000K = 210 µV/K, electrical conductivity of σ1000K = 60 S/cm, and thermal conductivity of k1000K = 1.45 W/(m K), leading to a ZT value of 0.16 at 1000 K.

KW - modelling

KW - molecular dynamics

KW - Oxide ceramic

KW - thermal conductivity

KW - thermoelectric

KW - titanate

KW - tungsten bronze

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JO - Journal of Electronic Materials

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