High Performance Thermoelectricity in Earth-Abundant Compounds Based on Natural Mineral Tetrahedrites
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TLDR
In this article, the authors report dimensionless thermoelectric properties of tetrahedrites, the most widespread sulfosalts on Earth, and further show that the natural mineral itself can be used directly as an inexpensive source of energy.Abstract:
Thermoelectric materials can convert waste heat into electricity, potentially improving the effi ciency of energy usage in both industry and everyday life. Unfortunately, known good thermoelectric materials often are comprised of elements that are in low abundance and require careful doping and complex synthesis procedures. Here, we report dimensionless thermoelectric fi gure of merit near unity in compounds of the form Cu 12 − x M x Sb 4 S 13 , where M is a transition metal such as Zn or Fe, for wide ranges of x . The compounds investigated here span the range of compositions of the natural mineral family of tetrahedrites, the most widespread sulfosalts on Earth, and we further show that the natural mineral itself can be used directly as an inexpensive source thermoelectric material. Thermoelectrics comprised of earth-abundant elements will pave the way to many new, low cost thermoelectric energy generation opportunities.read more
Citations
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Electronic and thermoelectric properties of Zn and Se double substituted tetrahedrite.
Sahil Tippireddy,Raju Chetty,Krushna Kumari Raut,Mit H. Naik,Prashanta K. Mukharjee,Manish Jain,Ramesh Nath,Krzysztof T. Wojciechowski,Ramesh Chandra Mallik +8 more
TL;DR: The influence of Zn and Se double substitution on the electronic and thermoelectric properties of tetrahedrite was investigated and simultaneous optimization of the power factor and thermal conductivity could thus be achieved via double substitution at Cu and S sites.
Journal ArticleDOI
Ultra-low thermal conductivities of hot-pressed attapulgite and its potential as thermal insulation material
Yuan Liu,Xiuzhang Wang,Yumei Wang,Yumei Wang,Zhongjia Tang,Tatyana Makarenko,Arnold M. Guloy,Qinyong Zhang,Zhifeng Ren +8 more
TL;DR: In this article, the authors report on extremely low thermal conductivities in attapulgite samples synthesized by hot-pressing, which is a widely used clay mineral.
Journal ArticleDOI
Influence of S and Te substitutions on the thermoelectric properties of the cluster compound Ag3.8Mo9Se11
Philippe Masschelein,Christophe Candolfi,Anne Dauscher,Christine Gendarme,Al Rahal Al Orabi Rabih,Patrick Gougeon,Michel Potel,Philippe Gall,Régis Gautier,Bertrand Lenoir +9 more
TL;DR: In this article, a detailed study of the influence of S and Te substitutions for Se on the thermoelectric properties of the cluster compound Ag3.8Mo9Se11.
Journal ArticleDOI
Thermoelectric Properties of Natural Chalcopyrite from Zacatecas, Mexico
TL;DR: In this article, the phase and chemical compositions of chalcopyrite from the sulfide footwall vein in La Cantera (Zacatecas, Mexico) were examined by powder X-ray diffraction, energy dispersive Xray spectroscopy, and chemical ICP-OES analyses.
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