Preparation of Nanosized La2CuO4 Particle by Chemical Precipitation Method and its Thermoelectrical Properties

Abstract:

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Nanometer La2CuO4 particles have been prepared using chemical precipitation method. The reaction mechanism, microstructure and phase composition of the samples were investigated by TG-DTA, XRD, SEM. The XRD results showed that pure La2CuO4 phase can be obtained by calcining the La-Cu-O-H precursor powders at 900 oC for 2 h, and the impurity phase will appear in the La2CuO4 ceramic as increasing the sintering temperature over 1200 oC. La2CuO4 ceramic samples sintered at 950 oC for 6 h exhibit good thermoelectric properties. Seebeck coefficient can reach 714 μV/K, and power factor is about 2.33×10-5 W/mK2.

Info:

Periodical:

Key Engineering Materials (Volumes 368-372)

Edited by:

Wei Pan and Jianghong Gong

Pages:

556-558

DOI:

10.4028/www.scientific.net/KEM.368-372.556

Citation:

Y. Liu et al., "Preparation of Nanosized La2CuO4 Particle by Chemical Precipitation Method and its Thermoelectrical Properties", Key Engineering Materials, Vols. 368-372, pp. 556-558, 2008

Online since:

February 2008

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Price:

$35.00

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