Preparation and transport properties of aqueous sol-gel synthesized NaCo2O4-δ

Chia-Jyi Liu; J. Y. Liao; T. W. Wu; B. Y. Jen

doi:10.1023/B:JMSC.0000034151.93222.18

Preparation and transport properties of aqueous sol-gel synthesized NaCo₂O_4-δ

Chia-Jyi Liu, J. Y. Liao, T. W. Wu, B. Y. Jen

Department of Physics

Research output: Contribution to journal › Article

16 Citations (Scopus)

Abstract

We have successfully prepared thermoelectric materials NaCo ₂O_4-δ at lower temperature (700°C) using aqueous sol-gel methods. We find that the electrical resistivity and thermopower of NaCo₂O_4-δ depend strongly on the sintering temperature and partial pressure of oxygen. The oxygen content of NaCo ₂O_4-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	https://doi.org/10.1023/B:JMSC.0000034151.93222.18
Publication status	Published - 2004 Jul 15

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All Science Journal Classification (ASJC) codes

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

Cite this

Liu, C-J., Liao, J. Y., Wu, T. W., & Jen, B. Y. (2004). Preparation and transport properties of aqueous sol-gel synthesized NaCo₂O_4-δ. Journal of Materials Science, 39(14), 4569-4573. https://doi.org/10.1023/B:JMSC.0000034151.93222.18

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10.1023/B:JMSC.0000034151.93222.18