Thermoelectric properties of Ca2.95Bi0.05Co 4-xFexO9+δ (0 ≤ x ≤ 0.15)

Ankam Bhaskar, Z. R. Lin, Chia Jyi Liu

研究成果: Article同行評審

17 引文 斯高帕斯(Scopus)

摘要

Polycrystalline samples of Ca2.95Bi0.05Co 4-xFexO9+δ (x = 0.00, 0.05, 0.10, and 0.15) are prepared by conventional solid-state synthesis. The XRD results show that all the samples are single phase. The thermopower of all the samples is positive, indicating that the predominant carriers are holes over the entire temperature range. The electrical resistivity and thermopower decrease with increasing Fe content. Among all the samples, Ca 2.95Bi0.05Co3.95Fe0.15O 9+δ exhibits the highest dimensionless figure of merit of 0.064 at 300 K. These results suggest that the Fe is an effective doping element for improving the thermoelectric properties of Ca 2.95Bi0.05Co4O9+δ.

原文English
頁(從 - 到)63-67
頁數5
期刊Energy Conversion and Management
76
DOIs
出版狀態Published - 2013

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Nuclear Energy and Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology

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