<学術雑誌論文>
Simultaneous Enhancement in the Electrical Conductivity and Reduction in the Lattice Thermal Conductivity Leading to Enhanced Thermoelectric ZT Realized by Incorporation of Metallic Nanoparticles into Oxide Matrix

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概要 Abstract: Nanoporous Fe_3O_4 composites containing metallic Cu nanoparticles were synthesized by reducing-leaching treatment of CuFe_2O_4 precursor. Thermoelectric properties of the composites sintere...d at 1270 ºC greatly improved compared with Fe_3O_4 without Cu, presumably due to a nanoporous structure and the Cu nanoparticles remaining in the Fe_3O_4 matrix after acid leaching. The electrical and thermal conductivity indicate that Cu in the matrix promotes the electron conduction and suppresses the phonon conduction, improving the dimensionless figure-of-merit, ZT.続きを見る

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登録日 2020.04.02
更新日 2024.02.21

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