High thermoelectric performance of reduced lanthanide molybdenum oxides densified by spark plasma sintering

Four highly reduced molybdenum oxides LnMo 8O 14 (Ln = La, Ce, Nd and Sm) containing bicapped Mo 8 clusters were synthesized via solid state reaction followed by spark plasma sintering. The thermoelectric properties were investigated, and NdMo 8O 14 exhibits the best performance with the maximum pow...

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Bibliographic Details
Published in:Journal of alloys and compounds 2010-06, Vol.500 (1), p.22-25
Main Authors: Xu, Jianxiao, Sonne, Monica, Yanangiya, Shun-ichi, Van Nong, Ngo, Pryds, Nini, Nygren, Mats, Kleinke, Holger
Format: Article
Language:English
Subjects:
Alloys
Clusters
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Conductivity phenomena in semiconductors and insulators
Electronic transport in condensed matter
Exact sciences and technology
Lanthanides
Maximum power
Molybdenum oxides
NATURAL SCIENCES
NATURVETENSKAP
Physics
Power factor
Solid state
Spark plasma sintering
Thermal conductivity
Thermoelectric
Thermoelectric and thermomagnetic effects
Thermoelectricity
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Summary:Four highly reduced molybdenum oxides LnMo 8O 14 (Ln = La, Ce, Nd and Sm) containing bicapped Mo 8 clusters were synthesized via solid state reaction followed by spark plasma sintering. The thermoelectric properties were investigated, and NdMo 8O 14 exhibits the best performance with the maximum power factor of 177 μW/mK 2 at 1000 K. The highest ZT of NdMo 8O 14 was determined to be around 0.1 at 1000 K.
ISSN:0925-8388
1873-4669
1873-4669
DOI:10.1016/j.jallcom.2010.03.201