Electrodeposition of Bi-Te Thermoelectric Material in Ethylene Glycol-BiCl3-TeCl4 Non-Aqueous Solution

被引：0
|
作者：
Yamamoto, Hiroaki [1 ]
Akiguchi, Masamori [1 ,2 ]
Kominato, Hiroki [1 ,2 ]
Nozaki, Ai [1 ]
Morishita, Masao [1 ]
机构：
[1] Univ Hyogo, Grad Sch Engn, Dept Chem Engn & Mat Sci, Himeji, Hyogo 6712280, Japan
[2] Univ Hyogo, Himeji, Hyogo, Japan
来源：
MATERIALS TRANSACTIONS | 2023年 / 64卷 / 10期
关键词：
electrodeposition; thermoelectric material; bismuth telluride; ethylene glycol; non-aqueous solution; BISMUTH TELLURIDE; ALLOYS; FILMS; SB;
D O I：
10.2320/matertrans.MT-M2023080
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The electrodeposition of bismuth-tellurium thermoelectric material was investigated by galvanostatic and potentiostatic electrolysis in ethylene glycol (EG)-BiCl3-TeCl4 non-aqueous solutions at 393 K. Controlling the molar ratio of BiCl3 to TeCl4 in the bath and the electrolysis conditions, the Bi-Te alloys with various compositions were electrodeposited. The composition of the electrodeposit obtained in the 97.50 mol%EG-2.45 mol%BiCl3-0.05 mol%TeCl4 bath with the BiCl3 to TeCl4 molar ratio of 50:1 at the current density of 20 A center dot m(-2) was 40.14 mol%Bi-59.86 mol%Te and close to that of Bi2Te3. This electrodeposit exhibited a n-type thermoelectric conversion for the given temperature difference and its Seebeck coefficient was -145 mu VK-1.
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收藏
页码：2503 / 2507
页数：5
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