Synthesis & characterization of tetrahedrite compounds for thermoelectric applications

2016 9th International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW) Pub Date : 2016-06-20 DOI:10.1109/MSMW.2016.7538109

A. Guler, C. Boyraz, D. Shulgin, G. Mozzhukhin, B. Rameev

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引用次数: 2

Abstract

Thermoelectric materials have attracted much attention due to their potential applications in conversion of heat into electrical power or vice versa to cool the heat-generating elements using electrical power. Tetrahedrite is copper antimony sulfosalt mineral with the formula of Cu₁₂Sb₄S₁₃, where Cu could be partially replaced by another 3d (Mn, Ag, Al, Cr, Zn, Fe) or other (4d,5d) metal. This group of compounds is very prospective for large-scale thermoelectric applications. The compounds could be represented by common formula of the compound Cu_10-xM_2-xSb_4-yQ_yS_13-zTz. M=Au, Mn, Ag, Al, Cr, Zn, Fe; Q=As, Sn, Zn, Pb; Z=O, Se. The procedure of solid state reaction for tetrahedrite powder samples of various composition have been developed. The single phase tetrahedrite samples of Cu₁₂Sb₂As₂S₁₃, Cu_11.8Au_0.2Sb₄S₁₃, and Cu₁₀Fe₂Sb₄S₁₃ have been synthesized as proved by XRD. Characterization of their magnetic properties by VSM PPMS have been done.

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热电用四面体化合物的合成与表征

热电材料由于其在将热能转化为电能或反之转化为电能来冷却发热元件方面的潜在应用而受到广泛关注。四面体是一种铜锑亚硫酸矿物，分子式为Cu12Sb4S13，其中Cu可以部分被另一种3d (Mn, Ag, Al, Cr, Zn, Fe)或其他(4d,5d)金属取代。这类化合物在大规模热电应用方面具有很大的前景。这些化合物可以用化合物Cu10-xM2-xSb4-yQyS13-zTz的共同公式来表示。M=Au, Mn, Ag, Al, Cr, Zn, Fe;Q=As, Sn, Zn, Pb;Z = O, Se。研究了不同组成的四面体粉末样品的固相反应方法。经XRD证实，合成了Cu12Sb2As2S13、Cu11.8Au0.2Sb4S13和Cu10Fe2Sb4S13的单相四面体样品。用VSM PPMS对其磁性能进行了表征。

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2016 9th International Kharkiv Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW)

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