Synthesis of PbTe thermoelectric materials by alkaline reducing chemical routes

Synthesis of PbTe thermoelectric materials by alkaline reducing chemical routes
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碱性还原化学路线合成PbTe热电材料

DOI:
10.1016/j.materresbull.2008.01.001
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发表时间:
2008-11
影响因子:
5.4
通讯作者:
--
中科院分区:
材料科学2区
文献类型:
--
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以Pb(CH3COO)2. 3H2O和纯碲为前驱体,NaBH4为还原剂,采用碱还原溶剂热法、水热法和低温水相化学法合成了PbTe二元热电化合物。与溶剂热法和水热法合成的PbTe粉体相比,低温水化学法合成的PbTe粉体粒径更小,约为20nm。讨论了PbTe的可能形成机制。
Binary PbTe thermoelectric compounds have been successfully synthesized by alkaline reducing solvothermal, hydrothermal and low-temperature aqueous chemical routes using Pb(CH3COO)2·3H2O and pure tellurium as precursors, and NaBH4as the reductant. Compared to PbTe powders synthesized by solvothermal and hydrothermal routes, smaller PbTe nanopowders of about 20nm have been obtained by low-temperature aqueous chemical route. Possible formation mechanisms of PbTe were discussed.
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