Thermoelectric properties of WO3-based ceramics doped with Co2O3

  • Xiang Dong
  • Haiqing Wang
  • Zhongqiu Hua
  • Shujie Peng
  • Liang Dong
  • Yu Wang


Tungsten trioxide (WO3) doped with cobalt sesquioxide (Co2O3) was prepared by a conventional mixed oxide processing route and the thermoelectric properties were studied from 300 up to 1,000 K. The addition of Co2O3 to WO3 resulted in an increase in both the grain size and porosity, indicating that Co2O3 promotes the grain grown of WO3. The magnitude of the electrical conductivity (σ) and the absolute value of the Seebeck coefficient (|S|) depended strongly on the Co2O3 content. As for the power factor (σS 2 ), the 5.0 mol% sample has the maximum value of the power factor which is 0.12 μWm−1K−2 at 873 K.


SnO2 CeO2 Co2O3 Power Factor Thermoelectric Property 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This work was supported by the National Natural Science Foundation of China under Grant No. 50772092.


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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Xiang Dong
    • 1
  • Haiqing Wang
    • 2
  • Zhongqiu Hua
    • 1
  • Shujie Peng
    • 2
  • Liang Dong
    • 1
  • Yu Wang
    • 1
  1. 1.School of Electrical EngineeringSouthwest Jiaotong UniversityChengduChina
  2. 2.School of Material Science and EngineeringSouthwest Jiaotong UniversityChengduChina

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