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Andres Sotelo
Researcher at University of Zaragoza
Publications - 187
Citations - 2918
Andres Sotelo is an academic researcher from University of Zaragoza. The author has contributed to research in topics: Thermoelectric effect & Seebeck coefficient. The author has an hindex of 32, co-authored 175 publications receiving 2553 citations. Previous affiliations of Andres Sotelo include Spanish National Research Council.
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Effect of Sr substitution for Ca on the Ca3Co4O9 thermoelectric properties
TL;DR: In this article, a small amount of Sr has been incorporated into the Ca3Co4O9 and C3Co2O6 structures and no Sr-based secondary phases have been produced, leading to higher power factor values than the usually obtained in samples prepared by the conventional solid state routes and close to those obtained in textured materials.
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Preparation of high-performance Ca3Co4O9 thermoelectric ceramics produced by a new two-step method
M. A. Madre,Florinda M. Costa,Nuno M. F. Ferreira,Andres Sotelo,M. A. Torres,Gabriel Constantinescu,Sh. Rasekh,J. C. Diez +7 more
TL;DR: In this paper, a high performance Ca 3 Co 4 O 9 thermoelectric ceramic has been prepared from a Ca 1− x Co x O/Ca y Co 1− y O divorced eutectic structure produced by a directional melt-grown using the laser floating zone technique.
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Improvement of thermoelectric properties of Ca3Co4O9 using soft chemistry synthetic methods
TL;DR: In this paper, Rasekh et al. acknowledge a JAE-PreDoc 2010 grant from the Spanish Ministry of Science and Innovation-FEDER (Project MAT2008-00429) and the Gobierno de Aragon (Consolidated Research Groups T87 and T12).
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Enhancement of Ca3Co4O9 thermoelectric properties by Cr for Co substitution
TL;DR: In this article, the authors synthesize Ca3Co4−xCrxO9 polycristalline thermoelectric ceramics with small amounts of Cr by the classical solid state method.
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Solution-based synthesis routes to thermoelectric Bi2Ca2Co1.7Ox
TL;DR: In this paper, the synthesis of Bi 2 Ca 2 Co 1.7 O x misfit compounds by different processing routes, i.e., classical solid-state, and two solution methods namely sol-gel via nitrates and a polymer route, has been investigated.