四面体
材料科学
热电效应
锌黄锡矿
热电材料
放电等离子烧结
黄铜矿
化学工程
纳米技术
工艺工程
冶金
烧结
捷克先令
复合材料
黄铁矿
铜
热导率
工程类
物理
热力学
闪锌矿
图层(电子)
方铅矿
作者
Peter Baláž,Marcela Achimovičová,Matej Baláž,Kan Chen,Oleksandr Dobrozhan,Emmanuel Guilmeau,J. Hejtmánek,K. Knı́žek,Lenka Kubíčková,Petr Levinský,Viktor Puchý,Michael J. Reece,P. Varga,Ruizhi Zhang
出处
期刊:ACS Sustainable Chemistry & Engineering
[American Chemical Society]
日期:2021-01-25
卷期号:9 (5): 2003-2016
被引量:27
标识
DOI:10.1021/acssuschemeng.0c05555
摘要
In this work, Cu-based sulfides (chalcopyrite CuFeS2, 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-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 the 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. A comparison of the figure-of-merit ZT, representative of the efficiency of thermoelectric performance, shows that the scaling process of mechanochemical synthesis leads to similar values as compared to 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 that 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, toxic gases, and 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.
科研通智能强力驱动
Strongly Powered by AbleSci AI