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Journal of Inorganic Materials

Journal of Inorganic Materials >

2010 , Vol. 25 >Issue 6: 669 - 672

DOI: https://doi.org/10.3724/SP.J.1077.2010.00669

Research Paper

Hydrothermal Synthesis and Thermoelectric Properties of New Oxides (Ca0.85-xNdxOH)1.16CoO2

  • PEI Jian ,
  • CHEN Gang ,
  • WANG Qun ,
  • JIN Ren-Cheng
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  • (Department of Chemistry, Harbin Institute of Technology, Harbin 150001, China)

Received date: 2009-10-14

  Revised date: 2009-12-28

  Online published: 2010-05-12

Supported by

National Natural Science Foundation of China (20871036); Foundation of Harbin Subject Chief Scientist (2006RFXXG001)

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Abstract

Plate-like particles of (Ca0.85OH)1.16CoO2 were prepared in which Nd was partially substituted for Ca to improve the thermoelectric performance. The values of Seebeck coefficient of as-synthesized oxides are all positive, showing that these oxides are p-type materials. The electrical conductivity initially decreases then increases with increasing Nd-doped amount, which is the coeffect of carrier concentration and carrier mobility. The Seebeck coefficient increases with the increasing Nd-doped amount below 473K. The power factor reaches 7.06×10-5 W/(m·K2) at 573K for (Ca0.75Nd0.1OH)1.16CoO2.

Key words： hydrothermal synthesis; layered cobalt oxide; thermoelectric properties

Cite this article

PEI Jian , CHEN Gang , WANG Qun , JIN Ren-Cheng . Hydrothermal Synthesis and Thermoelectric Properties of New Oxides (Ca0.85-xNdxOH)1.16CoO2[J]. Journal of Inorganic Materials, 2010 , 25(6) : 669 -672 . DOI: 10.3724/SP.J.1077.2010.00669

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