Preparation of Fe-Al Binary Thermoelectric Conversion Films by Electrodeposition in AlCl3-NaCl-KCl-FeCl2 Quaternary Molten Salts
Preparation of Fe-Al Binary Thermoelectric Conversion Films by Electrodeposition in AlCl3-NaCl-KCl-FeCl2 Quaternary Molten Salts
复制标题
AlCl3-NaCl-KCl-FeCl2四元熔盐电沉积法制备Fe-Al二元热电转换薄膜
DOI：
10.1149/1945-7111/abdafd
复制
发表时间：
2021
期刊：
影响因子：
--
通讯作者：
and M. Morishita
中科院分区：
文献类型：
--
作者：
H. Yamamoto;Y. Koma;R. Kishino;A. Nozaki;and M. Morishita
采用恒电位电解法在AlCl 3-NaCl-KCl-FeCl 2四元熔盐体系中电沉积Fe-Al合金，制备具有热电转换功能的Fe-Al合金膜。在AlCl 3/FeCl 2摩尔比为200的AlCl 3-NaCl-KCl-FeCl 2熔盐中，（FeCl 2：32.6 mmol l-1），在0.5 ~ 0.2V（相对于Al（III）/Al）的电位范围内，电沉积的Al与Fe形成固溶体，在0.1V的电位下形成Fe 3Al金属间化合物。通过控制AlCl 3-NaCl-KCl-FeCl 2熔盐体系中AlCl 3/FeCl 2的摩尔比（FeCl 2浓度）和施加的电位在0.2 ~ − 0.1Vvs Al（III）/Al范围内，可获得34.5mol%的Al。
The electrodeposition of Fe–Al alloy in AlCl 3–NaCl–KCl–FeCl 2 quaternary molten salts was investigated by potentiostatic electrolysis to prepare Fe–Al alloy film with a thermoelectric conversion function. In the AlCl 3–NaCl–KCl–FeCl 2 molten salts with an AlCl 3/FeCl 2 mole ratio of 200 (FeCl 2: 32.6 mmol l− 1), the electrodeposited Al formed a solid solution with Fe in the potential range from 0.5 to 0.2 V vs Al (III)/Al and formed the intermetallic compound of Fe 3 Al at the potential of 0.1 V. Fe–Al alloys containing 0.8–34.5 mol% Al were obtained by controlling the AlCl 3/FeCl 2 mole ratio (FeCl 2 concentration) in AlCl 3–NaCl–KCl–FeCl 2 molten salts and the applied potential in the potential range from 0.2 to− 0.1 V vs Al (III)/Al. The Fe–Al alloy films prepared in the present study exhibited the p-or n-type thermoelectric conversion, depending on their composition.