Title :
Chemical synthesis of Ca9Co12O28 and thermoelectric power
Author :
Chen, Shengli ; An, Jiming ; Cai, Ke-feng ; Nan, Ce Wen
Abstract :
The nanosized Ca9Co12O28 powder was synthesized via a sol-gel process. The phase composition was characterized by means of X-ray diffraction. Polycrystalline samples of Ca9Co12O28 were prepared by a sintering procedure of nanosized power. The Seebeck coefficient and electrical conductivity of the samples were measured from 573K up to 1073K. The Seebeck coefficient increases with increasing temperature
Keywords :
Seebeck effect; X-ray diffraction; calcium compounds; cobalt compounds; electrical conductivity; nanostructured materials; sintering; sol-gel processing; thermoelectric power; 1 h; 1023 K; 12 h; 393 K; 6 h; 973 K; Ca9Co12O28; Seebeck coefficient; X-ray diffraction; chemical synthesis; electrical conductivity; nanosized power; phase composition; sintering; sol-gel process; thermoelectric power; Chemicals; Conductivity measurement; Diffraction; Electric variables measurement; Heating; Materials science and technology; Oxidation; Powders; Temperature control; Thermoelectricity;
Conference_Titel :
Thermoelectrics, 2001. Proceedings ICT 2001. XX International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-7205-0
DOI :
10.1109/ICT.2001.979868
