Mechanochemistry for Thermoelectrics: Nanobulk Cu6Fe2SnS8/Cu2FeSnS4 Composite Synthesized in an Industrial Mill

Baláž, Peter; Hegedüs, Michal; Reece, Mike; Zhang, Ruizhi; Su, Taichao; Škorvánek, I.; Briančin, Jaroslav; Baláž, Matěj; Mihalik, M.; Tešinský, Matej; Achimovičová, Marcela

doi:10.1007/s11664-019-06972-7

Cited by 16 publications

(5 citation statements)

References 47 publications

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“…The source was 119m Sn source in CaSnO3 matrix with an activity of ~130 MBq. For the velocity calibration, a 57 Fe Mössbauer spectrum of a a-Fe foil at RT was collected using a 57 Co source mounted at the other side of the spectrometer transducer. Isomer shifts (d) are given with respect to SnO2 at room temperature.…”

Section: Methodsmentioning

confidence: 99%

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Promoted crystallisation and cationic ordering in thermoelectric Cu₂₆V₂Sn₆S₃₂ colusite by eccentric vibratory ball milling

et al. 2020

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Section: Methodsmentioning

confidence: 99%

“…kesterite Cu2ZnSnS4, 52-56 and mawsonite Cu6Fe2SnS8, 57 that can be readily prepared by ball milling in a planetary mill by direct reaction of elements or binary sulphides. The possibility to prepare pristine colusite by mechanochemical synthesis was first reported by Bourgès et al 16 , but only for small batches of 5g.…”

Section: Introductionmentioning

confidence: 99%

Promoted crystallisation and cationic ordering in thermoelectric Cu₂₆V₂Sn₆S₃₂ colusite by eccentric vibratory ball milling

et al. 2020

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“…The authors in their theoretical work revealed that the low thermal conductivity of MAW is a consequence of low frequency vibration modes of Cu-ions. Good electronic transport properties and low thermal conductivity give promising thermoelectric performance characterized by a maximum ZT value of 0.5 at 750 K. However, up-scaling of MAW synthesis was documented only in our recent paper 99 . The mechanochemical solid state synthesis was performed for milling times of 5-240 min.…”

Section: Mechanochemical Reduction: Influence Of Composite Formation During Milling On Thermoelectric Performancementioning

confidence: 93%

Thermoelectric Cu–S-Based Materials Synthesized via a Scalable Mechanochemical Process

Baláž

Achimovičová

Baláž

et al. 2021

ACS Sustainable Chem. Eng.

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In this work, Cu based sulfides (chalcopyrite CuFeS 2, mohite Cu 2 SnS 3, tetrahedrite Cu 12 Sb 4 S 13 , mawsonite Cu 6 Fe 2 SnS 8 and kesterite Cu 2 ZnSnS 4 ) were synthesized by industrial milling in an excentric vibration mill to demonstrate scalability of their synthesis. For comparison, laboratory scale milling in a planetary mill was performed. The properties of the obtained samples were characterized by X-ray diffraction, and in some cases, also by Mössbauer spectroscopy. For densification of powders the method of Spark Plasma Sintering was applied to prepare suitable samples for thermoelectric (TE) characterization which created the core of this paper. Comparison of the figure-of-merit ZT, representative of the efficiency of thermoelectric performance, show that the scaling process of mechanochemical synthesis leads to the similar values than using laboratory methods. This makes the cost effective production of Cu-based sulfides as prospective energy materials for converting heat to electricity feasible. Several new concepts have been developed involving combinations of natural and synthetic species (tetrahedrite) and nanocomposite formation (tetrahedrite/digenite, mawsonite/stannite) offer sustainable approaches in solid state chemistry. Mechanochemical synthesis is selected as a simple, one-pot and facile solid-state synthesis of thermoelectric materials with the capability to reduce, or even eliminate solvents, 3 toxic gases, high temperatures with controllable enhanced yields. The synthesis is environmentally friendly and essentially waste-free. The obtained results illustrate the possibility of large-scale deployment of energy-related materials.

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“…Promising figure of merit values, found over the last decade in sulfur-based materials, revived the interest in sulfides and led to the identification of new promising families of thermoelectric materials. 4,5 In particular, several derivatives of natural copper-rich sulfide minerals, such as bornite Cu5FeS4, [6][7][8][9] tetrahedrite Cu12-xTrxSb4S13 (Tr = Mn, Fe, Co, Ni, Zn), [10][11][12][13][14] germanite derivative Cu22Fe8Ge4S32, [15][16][17] stannoidite Cu8.5Fe2.5Sn2S12, 18 mawsonite Cu6Fe2SnS8, [19][20][21] famatinite Cu3SbS4, 22 enargite Cu3PS4, 23 and mohite Cu2SnS3, 24 exhibit high performance p-type thermoelectric properties. In such compounds, the conducting Cu-S framework, which defines the nature of the valence band, is mainly responsible for the behavior of the transport properties.…”

Section: Introductionmentioning

confidence: 99%

Transport properties and electronic density-of-states of Zn-doped colusite Cu26Cr2Ge6S32

Kumar

Mitra

Guélou

et al. 2020

Applied Physics Letters

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Thermoelectric colusites, one of the most recently identified and most promising family of complex Cu–S materials, have quickly attracted significant attention based on their outstanding performance. Herein, we investigate the effect of zinc for copper substitution on the thermoelectric properties of the high-performance Cr–Ge colusite, Cu26Cr2Ge6S32. We discuss the striking impact of the aliovalent Zn/Cu substitution on the charge carrier mobility and effective mass and the consequences on the electrical and thermal transport properties. The investigation is supported by first-principles calculations of the electronic density-of-states of doped colusites. The theoretical study reveals the removal of the sharp features at the top of the valence manifold with the incorporation of Zn in the conductive network, with a strong reduction in the estimated relaxation time. These theoretical and experimental observations confirm the importance of disorder within the conductive network and the high sensitivity of the Cu-S tetrahedral framework toward defects in high-performance thermoelectric colusites.

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Mechanochemistry for Thermoelectrics: Nanobulk Cu6Fe2SnS8/Cu2FeSnS4 Composite Synthesized in an Industrial Mill

Cited by 16 publications

References 47 publications

Promoted crystallisation and cationic ordering in thermoelectric Cu₂₆V₂Sn₆S₃₂ colusite by eccentric vibratory ball milling

Promoted crystallisation and cationic ordering in thermoelectric Cu₂₆V₂Sn₆S₃₂ colusite by eccentric vibratory ball milling

Thermoelectric Cu–S-Based Materials Synthesized via a Scalable Mechanochemical Process

Transport properties and electronic density-of-states of Zn-doped colusite Cu26Cr2Ge6S32

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Mechanochemistry for Thermoelectrics: Nanobulk Cu6Fe2SnS8/Cu2FeSnS4 Composite Synthesized in an Industrial Mill

Cited by 16 publications

References 47 publications

Promoted crystallisation and cationic ordering in thermoelectric Cu26V2Sn6S32 colusite by eccentric vibratory ball milling

Promoted crystallisation and cationic ordering in thermoelectric Cu26V2Sn6S32 colusite by eccentric vibratory ball milling

Thermoelectric Cu–S-Based Materials Synthesized via a Scalable Mechanochemical Process

Transport properties and electronic density-of-states of Zn-doped colusite Cu26Cr2Ge6S32

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Product

Resources

About

Promoted crystallisation and cationic ordering in thermoelectric Cu₂₆V₂Sn₆S₃₂ colusite by eccentric vibratory ball milling

Promoted crystallisation and cationic ordering in thermoelectric Cu₂₆V₂Sn₆S₃₂ colusite by eccentric vibratory ball milling