Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Engineering / Faculty of Engineering >
Peer-reviewed Journal Articles, etc >
Electrodeposition of Sb-Te Alloy in AlCl3-NaCl-KCl Molten Salt
Title: | Electrodeposition of Sb-Te Alloy in AlCl3-NaCl-KCl Molten Salt |
Authors: | Ueda, Mikito Browse this author →KAKEN DB | Mito, Yusuke Browse this author | Ohtsuka, Toshiaki Browse this author |
Keywords: | molten salt | thermoelectric device | Sb2Te3 | compound semiconductor | electrodeposition |
Issue Date: | 1-Aug-2008 |
Publisher: | The Thermoelectrics Society of Japan |
Journal Title: | Materials Transactions |
Volume: | 49 |
Issue: | 8 |
Start Page: | 1720 |
End Page: | 1722 |
Publisher DOI: | 10.2320/matertrans.E-MRA2008811 |
Abstract: | The Electrodeposition of Sb-Te alloy was carried out in AlCl3-NaCl-KCl molten salt containing SbCl3 and TeCl4 at 423 K by constant potential electrolysis. The voltammogram on a glassy carbon (GC) electrode in a melt containing 1.0×10−2 kmol m−3 SbCl3 and 1.0×10−2 kmol/m3 TeCl4 revealed the cathodic current waves at 1.5, 1.1, and 0.9 V vs. Al/Al(III). A stable Sb-Te alloy deposit was obtained at 0.85 V in the melt containing SbCl3 and TeCl4. At the higher concentration ratio of the Sb(III) to (Sb(III) + Te(IV)), a good linear relation was found between the atomic ratio of Sb in the deposit and the concentration ratio of Sb (III) in the melt. The Sb-Te alloy deposit of atomic ratio of 38:62% which was assume to be suitable for a thermoelectric device was obtained with the molten salt containing 7.0×10−3 kmol/m3 SbCl3 and 1.0×10−2 kmol/m3 TeCl4. The XRD pattern of the deposit corresponds to that of Sb2Te3 intermetallic compound. The deposit had homogeneous disk-like granule with the disk size of about 10 μm. |
Type: | article |
URI: | http://hdl.handle.net/2115/75204 |
Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 上田 幹人
|