Mechanochemistry for energy materials: impact of high-energy milling on chemical, electric and thermal transport properties of chalcopyrite CuFeS.sub.2./sub. nanoparticles

0546385 - FZÚ 2022 RIV DE eng J - Journal Article
Baláž, P. - Dutková, E. - Baláž, M. - Džunda, R. - Navrátil, Jiří - Knížek, Karel - Levinský, Petr - Hejtmánek, Jiří
Mechanochemistry for energy materials: impact of high-energy milling on chemical, electric and thermal transport properties of chalcopyrite CuFeS₂ nanoparticles.
ChemistryOpen. Roč. 10, č. 8 (2021), s. 806-814. ISSN 2191-1363. E-ISSN 2191-1363
R&D Projects: GA MŠMT(CZ) EF16_019/0000760; GA ČR GA18-12761S; GA MŠMT(CZ) LM2018096
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : chalcopyrite * mechanochemistry * thermoelectrics
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 2.630, year: 2021
Method of publishing: Open access

Chalcopyrite CuFeS2, a semiconductor with applications in chemical sector and energy conversion engineering, was synthetized in a planetary mill from elemental precursors. The synthesis is environmentally friendly, waste-free and inexpensive. The synthesized nano-powders were characterized by XRD, SEM, EDX, BET and UV/Vis techniques, tests of chemical reactivity and, namely, thermoelectric performance of sintered ceramics followed. The crystallite size of ∼13 nm and the strain of ∼17 were calculated for CuFeS2 powders milled for 60, 120, 180 and 240 min, respectively.
Permanent Link: http://hdl.handle.net/11104/0323207