Electrochemical preparation of titanium and titanium–copper alloys with K2Ti6O13 in KF–KCl melts

To investigate the electrodeposition mechanism of Ti4+, electrochemistry experiments were conducted using a KF–KCl–K2Ti6O13 molten salt at a Cu electrode at 950 ℃. Transient electrochemical techniques such as cyclic voltammetry（CV） and square-wave voltammetry were used in this study. The main phases...

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Published in:稀有金属：英文版 2017 (6), p.527-532
Main Author: Kun Zhao Yao-Wu Wang Jian-Ping Peng Yue-Zhong Di Xin-Zhong Deng Nai-Xiang Feng
Format: Article
Language:English
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Summary:To investigate the electrodeposition mechanism of Ti4+, electrochemistry experiments were conducted using a KF–KCl–K2Ti6O13 molten salt at a Cu electrode at 950 ℃. Transient electrochemical techniques such as cyclic voltammetry（CV） and square-wave voltammetry were used in this study. The main phases and compositions of the product were analyzed by X-ray diffraction（XRD）, scanning electron microscopy（SEM）, and energy-dispersive spectrometry（EDS）. The resulting product has the structure of metallic Ti. The results indicate that Ti4+ is reduced to metallic Ti by a two-step mechanism, corresponding to the reduction pathway: Ti4+→ Ti2+→ Ti. Moreover, Cu–Ti alloy could be obtained by the potentiostatic electrolysis at a Cu electrode.
ISSN:1001-0521
1867-7185