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Title
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A study on the electrochemical responses of p-type bismuth telluride-based thermoelectric materials in a 0.1 M NaCl solution: Comparing a nanocomposite with dispersed MoS2 nanoparticles and a single-phase alloy
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Type
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JournalPaper
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Keywords
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Bismuth telluride Nanocomposite MotteSchottky (MeS) test Thermoelectrics Electrochemical impedance spectroscopy (EIS) Raman spectroscopy
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Abstract
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This research is aimed at systematic investigation of electrochemical responses of p-type bismuth telluride-based thermoelectric materials in a NaCl solution. A nanocomposite with dispersed MoS2 nanoparticles and a single-phase alloy, which were produced by mechanical alloying and hot extrusion were studied. Electrochemical impedance spectroscopy (EIS) and polarization tests indicated that the nanocomposite specimen exhibits a superior passive behavior compared to the single-phase alloy. Mott eSchottky analysis showed that the passive layers of both nanocomposite and single-phase specimens had a n-type semiconducting behavior, while their bulk semiconducting behavior were identified as ptype
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Researchers
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Farid Reza Attarzadeh (Third Researcher), Mohsen K. Keshavarz (Second Researcher), Arash Fattah-alhosseini (First Researcher)
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