Thermoelectric Cu-S-based materials synthesized via a scalable mechanochemical process

0541748 - FZÚ 2022 RIV US eng J - Journal Article
Balaž, P. - Achimovičová, M. - Baláž, M. - Chen, K. - Dobrozhan, O. - Guilmeau, E. - Hejtmánek, Jiří - Knížek, Karel - Kubíčková, Lenka - Levinský, Petr - Puchý, V. - Reece, M.J. - Varga, P. - Zhang, R.
Thermoelectric Cu-S-based materials synthesized via a scalable mechanochemical process.
ACS Sustainable Chemistry & Engineering. Roč. 9, č. 5 (2021), s. 2003-2016. ISSN 2168-0485. E-ISSN 2168-0485
R&D Projects: GA MŠMT(CZ) EF16_019/0000760; GA ČR GA18-12761S
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : energy materials * thermoelectrics * multinary copper sulfides * mechanochemistry * scalable solid-state synthesis
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 9.224, year: 2021
Method of publishing: Limited access
https://doi.org/10.1021/acssuschemeng.0c05555

In this work, Cu-based sulfides (chalcopyriteCuFeS2, mohite Cu2SnS3, tetrahedrite Cu12Sb4S13, mawsonite Cu6Fe2SnS8, and kesterite Cu2ZnSnS4)were synthesized by industrial milling in an eccentric vibratory mill to demonstrate the scalability of their synthesis. For a comparison, laboratory-scalemilling in a planetary mill was performed. The properties of theobtained samples were characterized by X-ray diffraction and, insome cases, also by Mössbauer spectroscopy. For the densificationof powders, the method of spark plasma sintering was applied toprepare suitable samples for thermoelectric (TE) characterizationwhich created the core of this paper. A comparison of thefigure-of-merit ZT, representative of the efficiency of thermoelectricperformance, shows that the scaling process of mechanochemical synthesis leads to similar values as compared to using laboratorymethods.
Permanent Link: http://hdl.handle.net/11104/0319280