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N type cadmium oxide thermoelectric material and preparation method thereof
The invention discloses an N type cadmium oxide thermoelectric material. The N type cadmium oxide thermoelectric material is crucially characterized in that the chemical molecular formula of the N type cadmium oxide thermoelectric material is Cd<1-x>AxO or CdO, wherein A represents Mg, Ca, Zn, Ba and Pr, and x is more than or equal to 0 and less than or equal to 0.15; the preparation method of the N type cadmium oxide thermoelectric material comprises the following steps: 1) weighing CdO or CdO and an oxide or single substance of element A according to an atom mole stoichiometric ratio, evenly mixing in an agate tank to obtain a needed material; 2) performing ball milling to the material to obtain a precursor powder; 3) drying the precursor powder, and pressing into circular discs; and 4) sintering the circular discs through the traditional solid-phase reaction sintering technology, thus obtaining the N type cadmium oxide thermoelectric material. The Cd<1-x>AxO ceramic material obtained by introducing A has better high-temperature thermoelectric properties, the ZT can achieve 0.47 at 730 DEG C, and the N type cadmium oxide thermoelectric material is an N type oxide thermoelectric ceramic material having application prospects.
N type cadmium oxide thermoelectric material and preparation method thereof
The invention discloses an N type cadmium oxide thermoelectric material. The N type cadmium oxide thermoelectric material is crucially characterized in that the chemical molecular formula of the N type cadmium oxide thermoelectric material is Cd<1-x>AxO or CdO, wherein A represents Mg, Ca, Zn, Ba and Pr, and x is more than or equal to 0 and less than or equal to 0.15; the preparation method of the N type cadmium oxide thermoelectric material comprises the following steps: 1) weighing CdO or CdO and an oxide or single substance of element A according to an atom mole stoichiometric ratio, evenly mixing in an agate tank to obtain a needed material; 2) performing ball milling to the material to obtain a precursor powder; 3) drying the precursor powder, and pressing into circular discs; and 4) sintering the circular discs through the traditional solid-phase reaction sintering technology, thus obtaining the N type cadmium oxide thermoelectric material. The Cd<1-x>AxO ceramic material obtained by introducing A has better high-temperature thermoelectric properties, the ZT can achieve 0.47 at 730 DEG C, and the N type cadmium oxide thermoelectric material is an N type oxide thermoelectric ceramic material having application prospects.
N type cadmium oxide thermoelectric material and preparation method thereof
WANG SHUFANG (Autor:in) / ZHAI SHENGJUN (Autor:in) / LI LONGJIANG (Autor:in) / FU GUANGSHENG (Autor:in) / LI XIAOWEI (Autor:in)
27.05.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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