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Novel silver-bismuth-sulfur ore structure thermoelectric material and preparation method thereof
The invention discloses a novel thermoelectric material with a silver-bismuth-sulfur ore structure and a preparation method of the novel thermoelectric material with the silver-bismuth-sulfur ore structure. The chemical formula of the novel thermoelectric material with the silver-bismuth-sulfur ore structure is Pb < 5 > Sb < 12 + x > Bi < 6-x > Se < 32 > or Pb < 4 > Sb < 12-x > Bi < 8 + x > Se < 34 >, in the Pb5Sb12 + xBi (6-x) Se32, x is more than or equal to 0 and less than or equal to 5, and the number of diagonal octahedrons in a NaCl structural unit forming layer of the Pb5Sb12 + xBi (6-x) Se32 is 8; in the Pb4Sb12-xBi8 + xSe34, x is more than or equal to 0 and less than or equal to 6, and the number of diagonal octahedrons in a NaCl structural unit forming layer of the Pb4Sb12-xBi8 + xSe34 is 8; the intrinsic thermoelectric figure of merit of the obtained Pb4Sb9Bi11Se34 material is 0.48, and the synthetic method is simple, low in cost, capable of being popularized and applied on a large scale and wide in prospect.
本发明公开了一种新型银铋硫矿结构热电材料及其制备方法，所述新型银铋硫矿结构热电材料的化学式为Pb5Sb12+xBi6‑xSe32或Pb4Sb12‑xBi8+xSe34；所述Pb5Sb12+xBi6‑xSe32中，0≤x≤5，Pb5Sb12+xBi6‑xSe32的NaCl结构单元形成层中对角线八面体数量为8；所述Pb4Sb12‑xBi8+xSe34中，0≤x≤6，Pb4Sb12‑xBi8+xSe34的NaCl结构单元形成层中对角线八面体数量为8；本发明得到的Pb4Sb9Bi11Se34材料，本征热电优值为0.48，该合成方法简单，成本低廉，可大规模推广应用，前景广阔。
Novel silver-bismuth-sulfur ore structure thermoelectric material and preparation method thereof
The invention discloses a novel thermoelectric material with a silver-bismuth-sulfur ore structure and a preparation method of the novel thermoelectric material with the silver-bismuth-sulfur ore structure. The chemical formula of the novel thermoelectric material with the silver-bismuth-sulfur ore structure is Pb < 5 > Sb < 12 + x > Bi < 6-x > Se < 32 > or Pb < 4 > Sb < 12-x > Bi < 8 + x > Se < 34 >, in the Pb5Sb12 + xBi (6-x) Se32, x is more than or equal to 0 and less than or equal to 5, and the number of diagonal octahedrons in a NaCl structural unit forming layer of the Pb5Sb12 + xBi (6-x) Se32 is 8; in the Pb4Sb12-xBi8 + xSe34, x is more than or equal to 0 and less than or equal to 6, and the number of diagonal octahedrons in a NaCl structural unit forming layer of the Pb4Sb12-xBi8 + xSe34 is 8; the intrinsic thermoelectric figure of merit of the obtained Pb4Sb9Bi11Se34 material is 0.48, and the synthetic method is simple, low in cost, capable of being popularized and applied on a large scale and wide in prospect.
本发明公开了一种新型银铋硫矿结构热电材料及其制备方法，所述新型银铋硫矿结构热电材料的化学式为Pb5Sb12+xBi6‑xSe32或Pb4Sb12‑xBi8+xSe34；所述Pb5Sb12+xBi6‑xSe32中，0≤x≤5，Pb5Sb12+xBi6‑xSe32的NaCl结构单元形成层中对角线八面体数量为8；所述Pb4Sb12‑xBi8+xSe34中，0≤x≤6，Pb4Sb12‑xBi8+xSe34的NaCl结构单元形成层中对角线八面体数量为8；本发明得到的Pb4Sb9Bi11Se34材料，本征热电优值为0.48，该合成方法简单，成本低廉，可大规模推广应用，前景广阔。
Novel silver-bismuth-sulfur ore structure thermoelectric material and preparation method thereof
一种新型银铋硫矿结构热电材料及其制备方法
LUO ZHONGZHEN (author) / YANG RUIZHI (author) / CUI HONGHUA (author) / ZHOU JING (author) / ZOU ZHIGANG (author)
2024-05-03
Patent
Electronic Resource
Chinese
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