Influence of Cathode Potential on Ti Electrodeposition in Molten Fluoride

Influence of Cathode Potential on Ti Electrodeposition in Molten Fluoride

The electrolysis condition of Ti electrodeposition in CaF2-MgF2 with CaO and TiO2 has been studied at 1573K. It was shown by cyclic voltammetry that cathodic current increased below 0.8V (vs. Mg/Mg2+) with CaO and TiO2 addition and that three reduction steps of Ti was suggested. Based on results of...

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Veröffentlicht in:ECS transactions 2016-08, Vol.75 (15), p.199-206
Hauptverfasser: Nishikawa, Kazuyoshi, Humiya, Sawada, Morishige, Taiki, Takenaka, Toshihide
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Humiya, Sawada
Morishige, Taiki
Takenaka, Toshihide
description The electrolysis condition of Ti electrodeposition in CaF2-MgF2 with CaO and TiO2 has been studied at 1573K. It was shown by cyclic voltammetry that cathodic current increased below 0.8V (vs. Mg/Mg2+) with CaO and TiO2 addition and that three reduction steps of Ti was suggested. Based on results of cyclic voltammetry, potentio-staic electrolysis was carried out between 0.2V and 0.7V. The particles containing Ti were obtained by potentio-static electrolysis. Particles containing Ti in electrodeposits were found by SEM-EDX. Ti oxide particles were detected by the electrolysis above 0.5V, while Ti metal particles did by the electrolysis below 0.4V. This result indicates that Ti metal can be electrodeposited below 0.4V (vs. Mg/Mg2+).
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title Influence of Cathode Potential on Ti Electrodeposition in Molten Fluoride
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