Electrochemical reduction of titanium tetrabromide in a hydrophobic room-temperature molten salt

Yasushi Katayama; Koichi Ogawa; Takashi Miura

doi:10.5796/electrochemistry.73.576

Electrochemical reduction of titanium tetrabromide in a hydrophobic room-temperature molten salt

Yasushi Katayama, Koichi Ogawa, Takashi Miura

Department of Applied Chemistry

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

The electrochemical reduction of tetravalent titanium species was investigated in hydrophobic l-n-butyl-l-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide (BMPTFSI) room-temperature molten salt (ionic liquid). Titanium tetrabromide was soluble in BMPTFSI regardless of the presence of BMPBr as a Lewis base. The stepwise reduction from Ti(IV) to Ti(III) and probably Ti(II) was observed in BMPTFSI containing TiBr₄ without BMPBr. The potentiostatic cathodic reduction gave some deposits at 180°C. The reduction of Ti(IV) species at -2.3 V led to the deposition of some Ti compounds containing TFSI^- anions. The electrodeposit containing Ti without TFSI^- anions was obtained by the potentiostatic cathodic reduction below - 3.0 V.

Original language	English
Pages (from-to)	576-578
Number of pages	3
Journal	Electrochemistry
Volume	73
Issue number	8
DOIs	https://doi.org/10.5796/electrochemistry.73.576
Publication status	Published - 2005 Aug

Keywords

Electrodeposition
Ionic Liquid
Room-Temperature Molten Salt
Titanium
Titanium Bromide

ASJC Scopus subject areas

Electrochemistry

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10.5796/electrochemistry.73.576

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title = "Electrochemical reduction of titanium tetrabromide in a hydrophobic room-temperature molten salt",

abstract = "The electrochemical reduction of tetravalent titanium species was investigated in hydrophobic l-n-butyl-l-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide (BMPTFSI) room-temperature molten salt (ionic liquid). Titanium tetrabromide was soluble in BMPTFSI regardless of the presence of BMPBr as a Lewis base. The stepwise reduction from Ti(IV) to Ti(III) and probably Ti(II) was observed in BMPTFSI containing TiBr4 without BMPBr. The potentiostatic cathodic reduction gave some deposits at 180°C. The reduction of Ti(IV) species at -2.3 V led to the deposition of some Ti compounds containing TFSI- anions. The electrodeposit containing Ti without TFSI- anions was obtained by the potentiostatic cathodic reduction below - 3.0 V.",

keywords = "Electrodeposition, Ionic Liquid, Room-Temperature Molten Salt, Titanium, Titanium Bromide",

author = "Yasushi Katayama and Koichi Ogawa and Takashi Miura",

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T1 - Electrochemical reduction of titanium tetrabromide in a hydrophobic room-temperature molten salt

AU - Katayama, Yasushi

AU - Ogawa, Koichi

AU - Miura, Takashi

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Y1 - 2005/8

N2 - The electrochemical reduction of tetravalent titanium species was investigated in hydrophobic l-n-butyl-l-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide (BMPTFSI) room-temperature molten salt (ionic liquid). Titanium tetrabromide was soluble in BMPTFSI regardless of the presence of BMPBr as a Lewis base. The stepwise reduction from Ti(IV) to Ti(III) and probably Ti(II) was observed in BMPTFSI containing TiBr4 without BMPBr. The potentiostatic cathodic reduction gave some deposits at 180°C. The reduction of Ti(IV) species at -2.3 V led to the deposition of some Ti compounds containing TFSI- anions. The electrodeposit containing Ti without TFSI- anions was obtained by the potentiostatic cathodic reduction below - 3.0 V.

AB - The electrochemical reduction of tetravalent titanium species was investigated in hydrophobic l-n-butyl-l-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide (BMPTFSI) room-temperature molten salt (ionic liquid). Titanium tetrabromide was soluble in BMPTFSI regardless of the presence of BMPBr as a Lewis base. The stepwise reduction from Ti(IV) to Ti(III) and probably Ti(II) was observed in BMPTFSI containing TiBr4 without BMPBr. The potentiostatic cathodic reduction gave some deposits at 180°C. The reduction of Ti(IV) species at -2.3 V led to the deposition of some Ti compounds containing TFSI- anions. The electrodeposit containing Ti without TFSI- anions was obtained by the potentiostatic cathodic reduction below - 3.0 V.

KW - Electrodeposition

KW - Ionic Liquid

KW - Room-Temperature Molten Salt

KW - Titanium

KW - Titanium Bromide

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Electrochemical reduction of titanium tetrabromide in a hydrophobic room-temperature molten salt

Abstract

Keywords

ASJC Scopus subject areas

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