Abstract
We have successfully prepared thermoelectric materials NaCo 2O4-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 NaCo 2O4-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.
| Original language | English |
|---|---|
| Pages (from-to) | 4569-4573 |
| Number of pages | 5 |
| Journal | Journal of Materials Science |
| Volume | 39 |
| Issue number | 14 |
| DOIs | |
| Publication status | Published - 2004 Jul 15 |
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
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Liu, C-J., Liao, J. Y., Wu, T. W., & Jen, B. Y. (2004). Preparation and transport properties of aqueous sol-gel synthesized NaCo2O4-δ. Journal of Materials Science, 39(14), 4569-4573. https://doi.org/10.1023/B:JMSC.0000034151.93222.18