Electrodeposition of Bi-Sb-Te Alloys by Pulse Electrolysis in AlCl3-NaCl-KCl Molten Salt

被引:3
作者
Ueda, Mikito [1 ]
Tsuchiya, Shoh [1 ]
Ohtsuka, Toshiaki [1 ]
机构
[1] Hokkaido Univ, Grad Sch Engn, Sapporo, Hokkaido 0608628, Japan
关键词
Thermoelectric Material; Bi-Sb-Te Alloy; Molten Salt;
D O I
10.5796/electrochemistry.77.659
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The electrodeposition of Sb-Bi-Te alloy in AlCl3-NaCl-KCl molten salt containing SbCl3, BiCl3, and TeCl4, at 423 K was carried out under constant potential control and potential pulse control in the melt. The electrodeposition results show that the SbCl3 concentration is effective to control the composition of Bi-Sb-Te ternary alloy. The electrodeposited Bi0.5Sb1.5Te3 by pulse electrolysis with frequency = 100 Hz and D. R. (Duty Ratio)= 75%, had good crystallinity and the preferential orientation of the electrodeposit was the (110) plane in this electrodeposition experiments. The electrodeposit had homogeneous disk-like granules. The power factor of the electrodeposit was calculated as 3 x 10(-5) Wm(-1) K-2 from the Seebeck coefficient and the electrical conductivity.
引用
收藏
页码:659 / 662
页数:4
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