Effects of Co:Sb molar ratio on synthesis and properties of undoped CoSb 3 prepared via a polyol method

Lan Yang; Huey Hoon Hng; Jan Ma; Tie Jun Zhu; Xin Bing Zhao

doi:10.1007/s11664-010-1286-1

Effects of Co:Sb molar ratio on synthesis and properties of undoped CoSb ₃ prepared via a polyol method

Lan Yang^*, Huey Hoon Hng, Jan Ma, Tie Jun Zhu, Xin Bing Zhao

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Nanostructured CoSb ₃ was prepared via a polyol method using different Co:Sb molar ratios in the reactant precursors. X-ray diffraction (XRD) and field-emission scanning electron microscopy (FESEM) were used to characterize the prepared products. Thermoelectric properties of the samples were measured from room temperature to around 500°C. The electrical resistivity and Seebeck coefficient were found to increase with increasing Sb content in the reactant precursors. The sample with a reactant precursor Co:Sb molar ratio of 1:4.75 exhibited the lowest total and lattice thermal conductivity, and the highest ZT value of 0.16 was obtained for this sample at about 450°C.

Original language	English
Pages (from-to)	1543-1548
Number of pages	6
Journal	Journal of Electronic Materials
Volume	39
Issue number	9
DOIs	https://doi.org/10.1007/s11664-010-1286-1
Publication status	Published - Sept 2010
Externally published	Yes

ASJC Scopus Subject Areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering
Materials Chemistry

Keywords

CoSb
Sb effect
skutterudite
Thermoelectric

Access to Document

10.1007/s11664-010-1286-1

Cite this

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title = "Effects of Co:Sb molar ratio on synthesis and properties of undoped CoSb 3 prepared via a polyol method",

abstract = "Nanostructured CoSb 3 was prepared via a polyol method using different Co:Sb molar ratios in the reactant precursors. X-ray diffraction (XRD) and field-emission scanning electron microscopy (FESEM) were used to characterize the prepared products. Thermoelectric properties of the samples were measured from room temperature to around 500°C. The electrical resistivity and Seebeck coefficient were found to increase with increasing Sb content in the reactant precursors. The sample with a reactant precursor Co:Sb molar ratio of 1:4.75 exhibited the lowest total and lattice thermal conductivity, and the highest ZT value of 0.16 was obtained for this sample at about 450°C.",

keywords = "CoSb, Sb effect, skutterudite, Thermoelectric",

author = "Lan Yang and Hng, {Huey Hoon} and Jan Ma and Zhu, {Tie Jun} and Zhao, {Xin Bing}",

year = "2010",

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T1 - Effects of Co:Sb molar ratio on synthesis and properties of undoped CoSb 3 prepared via a polyol method

AU - Yang, Lan

AU - Hng, Huey Hoon

AU - Ma, Jan

AU - Zhu, Tie Jun

AU - Zhao, Xin Bing

PY - 2010/9

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N2 - Nanostructured CoSb 3 was prepared via a polyol method using different Co:Sb molar ratios in the reactant precursors. X-ray diffraction (XRD) and field-emission scanning electron microscopy (FESEM) were used to characterize the prepared products. Thermoelectric properties of the samples were measured from room temperature to around 500°C. The electrical resistivity and Seebeck coefficient were found to increase with increasing Sb content in the reactant precursors. The sample with a reactant precursor Co:Sb molar ratio of 1:4.75 exhibited the lowest total and lattice thermal conductivity, and the highest ZT value of 0.16 was obtained for this sample at about 450°C.

AB - Nanostructured CoSb 3 was prepared via a polyol method using different Co:Sb molar ratios in the reactant precursors. X-ray diffraction (XRD) and field-emission scanning electron microscopy (FESEM) were used to characterize the prepared products. Thermoelectric properties of the samples were measured from room temperature to around 500°C. The electrical resistivity and Seebeck coefficient were found to increase with increasing Sb content in the reactant precursors. The sample with a reactant precursor Co:Sb molar ratio of 1:4.75 exhibited the lowest total and lattice thermal conductivity, and the highest ZT value of 0.16 was obtained for this sample at about 450°C.

KW - CoSb

KW - Sb effect

KW - skutterudite

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