Selection About Molten Salts Used For The Electrochemical Reduction of Porous TiO2 pellets
Liu,Kejia1; Wang,Yaowu1; Di,Yuezhong1; Peng,Jianping1; You,Jing2; Feng,Naixiang1; Zhang,Yi3
Source PublicationJournal of The Electrochemical Society
AbstractDiagrams of the equilibrium potential E (relative to the standard chlorine electrode) against the activity of oxide ion ( expressed as its logarithm, pO2?) in systems of Ti-O-Cl-M (M=Li, Na, Mg, Ca, Sr and Ba) were plotted to investigate the electro-deoxidation of porous TiO2 pellets in different chloride molten salts, including LiCl, NaCl, MgCl2, CaCl2, SrCl2 and BaCl2. From the diagrams, the reduction pathways of TiO2 in different molten salts are similar; and the applied potential (vs Cl?/Cl2) on the cathode and O2? ion activity influence greatly on the reduction pathway of TiO2 and the deoxidation limit. To test and verify the results of the thermodynamic analysis, electro-deoxidation experiments in different molten salts were done to determine the actual pathways in the electrochemical reduction of TiO2 and the possible deoxidation limits in the molten salts. The results indicated that the thermodynamic analysis is helpful in predicting and understanding the electrochemical reduction process of titanium oxides though the experimental results differ slightly from the thermodynamic analysis in some systems. Low-oxygen Ti can be obtained only in molten CaCl2.
KeywordElectro-deoxidation Chloride molten salt TiO2 Titanium
WOS IDIOP:0013-4651-167-8-ab8823
PublisherIOP Publishing
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Document Type期刊论文
Corresponding AuthorWang,Yaowu
Affiliation1.School of Metallurgy, Northeastern University, Shenyang, People’s Republic of China
2.Institute of process engineering, Chinese Academy of Sciences, Beijing, People’s Republic of China
3.Liaoning School of Science and Technology, Benxi, People’s Republic of China
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GB/T 7714
Liu,Kejia,Wang,Yaowu,Di,Yuezhong,et al. Selection About Molten Salts Used For The Electrochemical Reduction of Porous TiO2 pellets[J]. Journal of The Electrochemical Society,2020,167(8).
APA Liu,Kejia.,Wang,Yaowu.,Di,Yuezhong.,Peng,Jianping.,You,Jing.,...&Zhang,Yi.(2020).Selection About Molten Salts Used For The Electrochemical Reduction of Porous TiO2 pellets.Journal of The Electrochemical Society,167(8).
MLA Liu,Kejia,et al."Selection About Molten Salts Used For The Electrochemical Reduction of Porous TiO2 pellets".Journal of The Electrochemical Society 167.8(2020).
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