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- W2891254472 abstract "Solvothermal methods are generally used to synthesize CoSb3 skutterudite thermoelectric materials. Hydrothermal methods are seldom employed because of the hydrolytic reactions of Sb3+. However, the hydrothermal method is safer, more cost-efficient and environmentally friendly than solvothermal routes. Here, coordination complexes are used as the reactant to avoid hydrolytic reactions of Sb3+ in a CoSb3 skutterudite nanomaterial preparation via a hydrothermal route and their thermoelectric properties were compared to those of the materials prepared by the solvothermal method. The electrical conductivity and Seebeck coefficients of the obtained CoSb3 skutterudites were tested by a four-probe technique. The thermal conductivities were measured with a thermal diffusivity system using Pyroceram as a reference sample. The thermoelectric properties of the CoSb3 skutterudite were investigated in the temperature range of 300–800 K. It was found that the samples prepared by hydrothermal methods possess obvious advantages over those synthesized via solvothermal routes. The Seebeck coefficients of former material were increased by 14%, thermal conductivities were decreased by 5%, and ZT values were increased by 33%, even up to 35% at 725 K." @default.
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- W2891254472 date "2019-01-01" @default.
- W2891254472 modified "2023-10-10" @default.
- W2891254472 title "A comparative study on the thermoelectric properties of CoSb3 prepared by hydrothermal and solvothermal route" @default.
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- W2891254472 doi "https://doi.org/10.1016/j.jallcom.2018.09.114" @default.
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