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.

引用

页码：2503 / 2507

页数：5

共 32 条

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