Reference : Improvement of the thermoelectric properties of [Bi1.68Ca2O4-delta](RS)[CoO2](1.69) c...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
Improvement of the thermoelectric properties of [Bi1.68Ca2O4-delta](RS)[CoO2](1.69) cobaltite by chimie douce methods
Muguerra, Hervé [Université de Liège - ULg > Département de Chimie > LCIS-GreenMAT > >]
Rivas-Murias, Beatriz [Université de Liège - ULg > Département de Chimie > LCIS-GreenMAT > >]
Traianidis, Maria [Belgian Ceramic Research Centre, Mons, Belgium > > > >]
Henrist, Catherine [Université de Liège - ULg > Département de chimie (sciences) > LCIS - GreenMAT >]
Vertruyen, Bénédicte mailto [Université de Liège - ULg > Département de chimie (sciences) > Chimie inorganique structurale >]
Cloots, Rudi [Université de Liège - ULg > Département de chimie (sciences) > LCIS - GreenMAT - Doyen de la Faculté des Sciences >]
Journal of Solid State Chemistry
Academic Press
Yes (verified by ORBi)
San Diego
[en] Oxides ; Layered cobaltite ; Sol-gel technique ; Spray-drying technique ; Thermoelectric properties
[en] [Bi1 68Ca2O4 delta](RS)[CoO2](1 69) has been obtained by different chimie douce methods and uniaxially or isostatically pressed The influence of these parameters on the thermoelectric properties has been investigated. Contrary to the Seebeck coefficient, which remains unchanged, the electrical conductivity is greatly modified In particular, spray-drying synthesis followed by uniaxial pressing results in an electrical conductivity two times larger than in the case of conventional solid state synthesis. Our results suggest that a narrow particle size distribution is beneficial to the thermoelectric properties of the layered compounds. The spray-drying technique seems to be promising to Improve the electrical conductivity of layered materials. Moreover, this method presents other advantages (homogeneous samples and less energetic processing) which could be interesting to the future manufacturing of thermoelectric devices (C) 2010 Elsevier Inc. All rights reserved
Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy
Researchers ; Professionals
The following article appeared in Journal of Solid State Chemistry and may be found on the editor website

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