Electrochemical reduction of titanium dioxide thin film in LiCl-KCl-CaCl2 eutectic melt

Yasushi Katayama; Bernd Friedrich

Electrochemical reduction of titanium dioxide thin film in LiCl-KCl-CaCl₂ eutectic melt

Yasushi Katayama, Bernd Friedrich

Department of Applied Chemistry

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

5 Citations (Scopus)

Abstract

The electrochemical reduction of a titanium dioxide (TiO₂) thin film was investigated in LiCl-KCl-CaCl₂ eutectic melt at 450°C TiO₂ was reduced to Ti in the potential range from 0.2 to 1.0 V vs. Li/Li⁺, which is more positive than the Ca deposition potential (∼0.1 V vs. Li/Li⁺). A cathodic reaction, which is presumably assigned to the insertion of Li into TiO₂, was observed at the potential more positive than the reduction of TiO₂ to Ti. It is suggested that the electrochemical reduction of TiO₂ to Ti is possible in LiCl-KCl-CaCl₂ eutectic melt at 450°C though the slow diffusivity of titanium and /or oxide species in titanium oxides may be disadvantageous for mass production of Ti metal.

Original language	English
Title of host publication	Molten Salts XIV - Proceedings of the International Symposium
Pages	1046-1051
Number of pages	6
Publication status	Published - 2006 Dec 1
Event	206th ECS Meeting - Honolulu, HI, United States Duration: 2004 Oct 3 → 2004 Oct 8

Publication series

Name	Proceedings - Electrochemical Society
Volume	PV 2004-24

Other

Other	206th ECS Meeting
Country/Territory	United States
City	Honolulu, HI
Period	04/10/3 → 04/10/8

ASJC Scopus subject areas

Engineering(all)

Cite this

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title = "Electrochemical reduction of titanium dioxide thin film in LiCl-KCl-CaCl2 eutectic melt",

abstract = "The electrochemical reduction of a titanium dioxide (TiO2) thin film was investigated in LiCl-KCl-CaCl2 eutectic melt at 450°C TiO2 was reduced to Ti in the potential range from 0.2 to 1.0 V vs. Li/Li+, which is more positive than the Ca deposition potential (∼0.1 V vs. Li/Li+). A cathodic reaction, which is presumably assigned to the insertion of Li into TiO2, was observed at the potential more positive than the reduction of TiO2 to Ti. It is suggested that the electrochemical reduction of TiO2 to Ti is possible in LiCl-KCl-CaCl2 eutectic melt at 450°C though the slow diffusivity of titanium and /or oxide species in titanium oxides may be disadvantageous for mass production of Ti metal.",

author = "Yasushi Katayama and Bernd Friedrich",

year = "2006",

month = dec,

day = "1",

language = "English",

isbn = "9781566775144",

series = "Proceedings - Electrochemical Society",

pages = "1046--1051",

booktitle = "Molten Salts XIV - Proceedings of the International Symposium",

note = "206th ECS Meeting ; Conference date: 03-10-2004 Through 08-10-2004",

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T1 - Electrochemical reduction of titanium dioxide thin film in LiCl-KCl-CaCl2 eutectic melt

AU - Katayama, Yasushi

AU - Friedrich, Bernd

PY - 2006/12/1

Y1 - 2006/12/1

N2 - The electrochemical reduction of a titanium dioxide (TiO2) thin film was investigated in LiCl-KCl-CaCl2 eutectic melt at 450°C TiO2 was reduced to Ti in the potential range from 0.2 to 1.0 V vs. Li/Li+, which is more positive than the Ca deposition potential (∼0.1 V vs. Li/Li+). A cathodic reaction, which is presumably assigned to the insertion of Li into TiO2, was observed at the potential more positive than the reduction of TiO2 to Ti. It is suggested that the electrochemical reduction of TiO2 to Ti is possible in LiCl-KCl-CaCl2 eutectic melt at 450°C though the slow diffusivity of titanium and /or oxide species in titanium oxides may be disadvantageous for mass production of Ti metal.

AB - The electrochemical reduction of a titanium dioxide (TiO2) thin film was investigated in LiCl-KCl-CaCl2 eutectic melt at 450°C TiO2 was reduced to Ti in the potential range from 0.2 to 1.0 V vs. Li/Li+, which is more positive than the Ca deposition potential (∼0.1 V vs. Li/Li+). A cathodic reaction, which is presumably assigned to the insertion of Li into TiO2, was observed at the potential more positive than the reduction of TiO2 to Ti. It is suggested that the electrochemical reduction of TiO2 to Ti is possible in LiCl-KCl-CaCl2 eutectic melt at 450°C though the slow diffusivity of titanium and /or oxide species in titanium oxides may be disadvantageous for mass production of Ti metal.

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M3 - Conference contribution

AN - SCOPUS:34548369959

SN - 9781566775144

T3 - Proceedings - Electrochemical Society

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BT - Molten Salts XIV - Proceedings of the International Symposium

T2 - 206th ECS Meeting

Y2 - 3 October 2004 through 8 October 2004

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