Cuéllar-Santanilla, Carlos E.

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Generación y aprovechamiento de energía termoeléctrica
(2004) Cuéllar-Santanilla, Carlos E.; Castellano-Rodríguez, Dorial; College of Arts and Science - Science; Moisés, Orengo; Méndez, Rubén; Department of Physics; Walker-Ramos,Uroyoán R.
A new thermoelectric material for the generation of electricity above room temperature has been prepared. It is constructed of innershield cored wire, a crystalline material such as Cs2CoCl4 and constantan. Its average Seebeck coefficient was measmed to be α ~830μV/K, resistivity has been moderate at around ρ~ 3x10-2Ωcm, thermal conductivity κ~1.03x10-2W/mK, yield η~0.2255 and figure of merit Z~5.16x10-3K-1 for a temperature difference ∆T~422K, where the high temperature was Th~736K and the cold temperature Tc~314K. These results were compared with those obtained from materials commercially prepared for these same aims. According to the spectroscopic X-rays analysis, the material is made up of Cs3CoCl5, Fe1.874Sn0.096O3, Co6C(CO)12S2, and Ba4In6O13 whose respective crystalline structures are tetragonal, hexagonal, monoclinic and orthorhombic.