Effect of TiO2 cathode performance on preparation of Ti by electro-deoxidation

To resolve the problem of low current efficiency and low reaction rate when preparing metal by electro-deoxidization method, various contents of CaO and CaCO3 were added into the TiO2 powder, which were compacted into pellets and sintered, and then conducted as the cathode. The morphology and conten...

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Published inTransactions of Nonferrous Metals Society of China Vol. 17; no. A01; pp. 514 - 521
Main Author 杜继红 奚正平 李晴宇 许茜 唐勇 李争显
Format Journal Article
LanguageEnglish
Published 01.11.2007
Subjects
氧化还原技术
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ISSN1003-6326

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Abstract To resolve the problem of low current efficiency and low reaction rate when preparing metal by electro-deoxidization method, various contents of CaO and CaCO3 were added into the TiO2 powder, which were compacted into pellets and sintered, and then conducted as the cathode. The morphology and contents of the cathode and products were studied by scanning electron microscopy and X-ray diffractometry, the effect of the additives were studied. The results show that formation of calcium titanate and change of microstructure within the cathode enhance the velocity of the direct electrochemical reduction of solid TiO2 to Ti.
AbstractList To resolve the problem of low current efficiency and low reaction rate when preparing metal by electro-deoxidization method, various contents of CaO and CaCO3 were added into the TiO2 powder, which were compacted into pellets and sintered, and then conducted as the cathode. The morphology and contents of the cathode and products were studied by scanning electron microscopy and X-ray diffractometry, the effect of the additives were studied. The results show that formation of calcium titanate and change of microstructure within the cathode enhance the velocity of the direct electrochemical reduction of solid TiO2 to Ti.
Author 杜继红 奚正平 李晴宇 许茜 唐勇 李争显
AuthorAffiliation Northwest Institute for Nonferrous Metal Research, Xi＇an 710016, China School of Materials Science and Metallurgy, Northwestern University, Shenyang 110006, China
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Notes molten salt
electro-deoxidization
43-1239/TG
titanium
titanium; molten salt; electro-deoxidization; additive; electrolysis activity
TG146.2
additive
electrolysis activity
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SubjectTerms 氧化还原技术
Title Effect of TiO2 cathode performance on preparation of Ti by electro-deoxidation
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