NDLI: Improving the zT value of thermoelectrics by nanostructuring: tuning the nanoparticle morphology of Sb2Te3 by using ionic liquids

Content Provider	Royal Society of Chemistry (RSC)
Author	Schierning, Gabi Hagemann, Ulrich Heimann, Stefan Ünal, Derya Schulz, Stephan Schaumann, Julian Mudring, Anja Maculewicz, Franziska Loor, Manuel
Copyright Year	2017
Abstract	A systematic study on the microwave-assisted thermolysis of the single source precursor (Et2Sb)2Te (1) in different asymmetric 1-alkyl-3-methylimidazolium- and symmetric 1,3-dialkylimidazolium-based ionic liquids (ILs) reveals the distinctive role of both the anion and the cation in tuning the morphology and microstructure of the resulting Sb2Te3 nanoparticles as evidenced by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), and X-ray photoelectron spectroscopy (XPS). A comparison of the electrical and thermal conductivities as well as the Seebeck coefficient of the Sb2Te3 nanoparticles obtained from different ILs reveals the strong influence of the specific IL, from which C4mimI was identified as the best solvent, on the thermoelectric properties of as-prepared nanosized Sb2Te3. This work provides design guidelines for ILs, which allow the synthesis of nanostructured thermoelectrics with improved performances.
Starting Page	656
Ending Page	668
Page Count	13
File Format	HTM / HTML PDF
ISSN	14779226
Volume Number	46
Issue Number	3
Journal	Dalton Transactions
DOI	10.1039/c6dt04323b
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Subscribed
Subject Keyword	Seebeck Thermal decomposition Alkyl Ion X-ray crystallography Scanning electron microscope X-ray photoelectron spectroscopy Photoemission spectroscopy Seebeck coefficient Solvent Thermoelectric materials
Content Type	Text
Resource Type	Article
Subject	Inorganic Chemistry

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