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 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
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Preparation and transport properties of aqueous sol-gel synthesized NaCo2O4-δ. / Liu, Chia-Jyi; Liao, J. Y.; Wu, T. W.; Jen, B. Y.
In: Journal of Materials Science, Vol. 39, No. 14, 15.07.2004, p. 4569-4573.Research output: Contribution to journal › Article
TY - JOUR
T1 - Preparation and transport properties of aqueous sol-gel synthesized NaCo2O4-δ
AU - Liu, Chia-Jyi
AU - Liao, J. Y.
AU - Wu, T. W.
AU - Jen, B. Y.
PY - 2004/7/15
Y1 - 2004/7/15
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=3142715228&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=3142715228&partnerID=8YFLogxK
U2 - 10.1023/B:JMSC.0000034151.93222.18
DO - 10.1023/B:JMSC.0000034151.93222.18
M3 - Article
AN - SCOPUS:3142715228
VL - 39
SP - 4569
EP - 4573
JO - Journal of Materials Science
JF - Journal of Materials Science
SN - 0022-2461
IS - 14
ER -