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|Title: ||Preparation and Transport Properties of Aqueous Sol-gel Synthesized NaCo2O4−δ|
|Authors: ||Liu, Chia-Jyi;Liao, J. Y.;Wu, T. W.;Cheng, B. Y.|
|Issue Date: ||2012-09-10T06:14:15Z
|Publisher: ||Kluwer Academic Publishers|
|Abstract: ||We have successfully prepared thermoelectric materials NaCo2O4−δ at lower temperature|
(700◦C) using aqueous sol-gel methods. We find that the electrical resistivity and
thermopower of NaCo2O4−δ depend strongly on the sintering temperature and partial
pressure of oxygen. The oxygen content of NaCo2O4−δ is found to decrease with increasing
sintering temperature. The sample prepared at the combination of 700◦C and pure flowing
oxygen exhibits the highest value of power factor.
|Relation: ||J. of Materials Science, 39(14): 4569-4573|
|Appears in Collections:||[物理學系] 期刊論文|
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