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CdMn co-doped SnTe-based thermoelectric material and preparation method thereof
The invention discloses a preparation method of Cdamp; the invention discloses a Mn co-doped SnTe-based thermoelectric material and a preparation method thereof, and belongs to the technical field of energy conversion. The preparation method comprises the following steps: weighing Sn, Te, Cd and Mn powder according to the stoichiometric ratio of Sn (1.03-3x) CdxMn2xTe (x is greater than or equal to 0 and less than or equal to 0.05), uniformly mixing in an agate mortar, and then adopting a sample preparation process of high-temperature quenching and annealing to obtain the cast ingot material of Sn (1.03-3x) CdxMn2xTe. And grinding the ingot casting material into powder by using an agate mortar, filling the powder into a graphite mold, and carrying out rapid hot pressing on a sample at a certain temperature and pressure to obtain the Sn < 1.03-3x > Cd < x > Mn < 2x > Te block thermoelectric material. According to the thermoelectric material prepared by the invention, the thermal conductivity of SnTe is greatly reduced, and the Seebeck coefficient is remarkably improved, so that the thermoelectric performance of SnTe is greatly enhanced.
本发明公开了一种Cd&Mn共掺杂SnTe基热电材料及其制备方法，属于能源转换技术领域。按照Sn1.03‑3xCdxMn2xTe（0≤x≤0.05）的化学计量比称取Sn、Te、Cd、Mn粉，在玛瑙研钵中混合均匀，再采用高温淬火、退火的样品制备工艺，获得Sn1.03‑3xCdxMn2xTe的铸锭材料。用玛瑙研钵将铸锭材料研磨至粉末状，将粉末装入石墨模具中，在一定温度和压力下快速热压样品，得到Sn1.03‑3xCdxMn2xTe块体热电材料。本发明制备的热电材料大大降低了SnTe的热导率，并实现了塞贝克系数的显著提高，从而极大增强了SnTe的热电性能。
CdMn co-doped SnTe-based thermoelectric material and preparation method thereof
The invention discloses a preparation method of Cdamp; the invention discloses a Mn co-doped SnTe-based thermoelectric material and a preparation method thereof, and belongs to the technical field of energy conversion. The preparation method comprises the following steps: weighing Sn, Te, Cd and Mn powder according to the stoichiometric ratio of Sn (1.03-3x) CdxMn2xTe (x is greater than or equal to 0 and less than or equal to 0.05), uniformly mixing in an agate mortar, and then adopting a sample preparation process of high-temperature quenching and annealing to obtain the cast ingot material of Sn (1.03-3x) CdxMn2xTe. And grinding the ingot casting material into powder by using an agate mortar, filling the powder into a graphite mold, and carrying out rapid hot pressing on a sample at a certain temperature and pressure to obtain the Sn < 1.03-3x > Cd < x > Mn < 2x > Te block thermoelectric material. According to the thermoelectric material prepared by the invention, the thermal conductivity of SnTe is greatly reduced, and the Seebeck coefficient is remarkably improved, so that the thermoelectric performance of SnTe is greatly enhanced.
本发明公开了一种Cd&Mn共掺杂SnTe基热电材料及其制备方法，属于能源转换技术领域。按照Sn1.03‑3xCdxMn2xTe（0≤x≤0.05）的化学计量比称取Sn、Te、Cd、Mn粉，在玛瑙研钵中混合均匀，再采用高温淬火、退火的样品制备工艺，获得Sn1.03‑3xCdxMn2xTe的铸锭材料。用玛瑙研钵将铸锭材料研磨至粉末状，将粉末装入石墨模具中，在一定温度和压力下快速热压样品，得到Sn1.03‑3xCdxMn2xTe块体热电材料。本发明制备的热电材料大大降低了SnTe的热导率，并实现了塞贝克系数的显著提高，从而极大增强了SnTe的热电性能。
CdMn co-doped SnTe-based thermoelectric material and preparation method thereof
一种Cd&Mn共掺杂SnTe基热电材料及制备方法
SONG JIMING (Autor:in) / WEI RONG (Autor:in) / XU HUIHONG (Autor:in) / ZHANG YUEYUE (Autor:in)
22.08.2023
Patent
Elektronische Ressource
Chinesisch
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