NDLI: Microwave-assisted synthesis and thermoelelectric properties of CoSb$

Content Provider	Springer Nature Link
Author	Zhu, Yunguang Shen, Honglie Guan, Hao
Copyright Year	2012
Abstract	Using CoCl$_{2}$ and SbCl$_{3}$ as precursors and NaBH$_{4}$ as reducing agent, we obtained nano CoSb$_{3}$ particles of about 10 nm with the assistance of microwave radiation. Different Sb/Co ratio and different microwave radiation time were used to prepare CoSb$_{3}$. The results show that single CoSb$_{3}$ phase was synthesized successfully under the condition of Sb/Co ratio with 5:1 and microwave radiation time with 5 min. The samples with microstructure and nanostructure were synthesized respectively by cold isostatic pressing and sintering method, and their thermoelectric properties were studied. Due to its powder preparation method and its small grain size, the sample with nanostructure has lower electrical resistivity and thermal conductivity than the sample with microstructure. The maximum ZT value was found to be 0.11 at 650 K in the sample with nanostructure, which is about 10 times higher than that of the sample with microstructure.
Starting Page	2210
Ending Page	2215
Page Count	6
File Format	PDF
ISSN	09574522
Journal	Journal of Materials Science: Materials in Electronics
Volume Number	23
Issue Number	12
e-ISSN	1573482X
Language	English
Publisher	Springer US
Publisher Date	2012-05-23
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Optical and Electronic Materials Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Biomaterials Biophysics Condensed Matter Physics Electronic, Optical and Magnetic Materials Bioengineering Electrical and Electronic Engineering Biomedical Engineering

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