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Crystal Structure and High-Temperature Thermoelectric Properties of the Mo3−x Ru x Sb7 Compounds

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Abstract

Zintl phases are currently receiving great attention for their thermoelectric potential typified by the discovery of a high ZT value in Yb14MnSb11-based compounds. Herein, we report on the crystallographic characterization via neutron and x-ray diffraction experiments, and on the thermoelectric properties measured in the 300 K to 1000 K temperature range, of Mo3Sb7 and its isostructural compounds Mo3−x Ru x Sb7. Even though Mo3Sb7 displays rather high ZT values given its metallic character, the partial substitution of Mo by Ru substantially improves its thermoelectric properties, resulting in a ZT value of ∼0.45 at 1000 K for x = 0.8.

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Acknowledgements

C.C. greatly thanks M. Amiet and P. Maigné, and financial support of DGA (Déléguation Générale pour l’Armement, Ministry of Defence, France) and the Network of Excellence CMA (Complex Metallic Alloys).

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Authors and Affiliations

  1. Institut Jean Lamour, CNRS-Nancy Université-UPVM, Ecole Nationale Supérieure des Mines de Nancy, Parc de Saurupt, 54042, Nancy Cedex, France

    C. Candolfi, J. Leszczynski, P. Masschelein, C. Chubilleau, B. Lenoir & A. Dauscher

  2. CRISMAT-ENSICAEN, CNRS/UMR 6508, 6 Bd Maréchal Juin, 14050, Caen Cedex, France

    E. Guilmeau

  3. Institute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnicka 10, 162 53, Praha 6, Czech Republic

    J. Hejtmanek

  4. Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OXI 3QR, UK

    S. J. Clarke

  5. ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, UK

    R. I. Smith

Authors
  1. C. Candolfi
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  2. J. Leszczynski
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  3. P. Masschelein
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  4. C. Chubilleau
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  5. B. Lenoir
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  6. A. Dauscher
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  7. E. Guilmeau
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  8. J. Hejtmanek
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  9. S. J. Clarke
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  10. R. I. Smith
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Corresponding author

Correspondence to C. Candolfi.

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Candolfi, C., Leszczynski, J., Masschelein, P. et al. Crystal Structure and High-Temperature Thermoelectric Properties of the Mo3−x Ru x Sb7 Compounds. J. Electron. Mater. 39, 2132–2135 (2010). https://doi.org/10.1007/s11664-009-0981-2

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  • DOI: https://doi.org/10.1007/s11664-009-0981-2

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