Electrochemical preparation of V2O3 from NaVO3 and its reduction mechanism

  • Wei Weng (翁威)
  • Mingyong Wang (王明涌)
  • Xuzhong Gong
  • Zhi Wang
  • Dong Wang
  • Zhancheng Guo
Advanced Materials
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Abstract

Vanadium trioxide (V2O3) was directly prepared by NaVO3 electrolysis in NaCl molten salts. Electrolysis products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The existing state and electrochemical behavior of NaVO3 were also studied. The results indicated that V2O3 can be obtained from NaVO3. VC and C were also formed at high cell voltage, high temperature, and long electrolysis time. During electrolysis, NaVO3 was dissociated to Na+ and VO3 − in NaCl molten salt. NaVO3 was initially electro- reduced to V2O3 on cathode and Na2O was released simultaneously. Na2CO3 was formed due to the reaction between Na2O and CO2. The production of C was ascribed to the electro-reduction of CO3 2−. VC was produced due to the reaction between C and V2O3.

Key words

molten salt electrolysis V2O3 NaVO3 molten NaCl 
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References

  1. [1]
    Zhang Y F, Zhang F F, Yu L, et al. Synthesis and Characterization of Belt-like VO2(B)@carbon and V2O3@carbon Core-shell Structured Composites[J]. Colloid Surface A, 2012, 396(20): 144–152CrossRefGoogle Scholar
  2. [2]
    Zheng C M, Zhang X M, He S, et al. Preparation and Characterization of Spherical V2O3 Nano Powder[J]. J. Solid State Chem., 2003, 170: 221–226CrossRefGoogle Scholar
  3. [3]
    Chen W, Xu Q, Cui W Q. Effects of Quenching Treatment on the Structure and Electrical Property in Doped V2O3 System[J]. J. Mater. Sci., 1997, 32(4): 1049–1053CrossRefGoogle Scholar
  4. [4]
    Kong F Y, Li M, Li D B, et al. Synthesis and Characterization of V2O3 Nanocrystals by Plasma Hydrogen Reduction[J]. J. Crystal Growth, 2012, 346: 22–26CrossRefGoogle Scholar
  5. [5]
    Kittaka S, Sasaki S, Morimoto T. Spherical Particles and Their Surface Properties[J]. J. Mater. Sci., 1987, 22(2): 557–564CrossRefGoogle Scholar
  6. [6]
    Moskalyk R R, Alfantazi A M. Processing of Vanadium: a Review[J]. Miner. Eng., 2003, 16(9): 793–805CrossRefGoogle Scholar
  7. [7]
    Li X S, Xie B, Wang G E, et al. Oxidation Process of Low-grade Vanadium Slag in Presence of Na2CO3[J]. Trans. Nonferrous Met. Soc. China, 2011, 21(8): 1860–1867CrossRefGoogle Scholar
  8. [8]
    Aarabi-Karasgani M, Rashchi F, Mostoufi N, et al. Leaching of Vanadium from LD Converter Slag Using Sulfuric Acid[J]. Hydrometallurgy, 2010, 102(1-2): 14–21CrossRefGoogle Scholar
  9. [9]
    Shirinov E G, Gasanly Z G, Ganbarov D M. Reduction of Vanadium from Alkaline Solutions[J]. Russ. J. Appl. Chem., 2009, 82(7): 1230–1233CrossRefGoogle Scholar
  10. [10]
    Lingane J J. Polarographic Characteristics of Vanadium in its Various Oxidation States[J]. J. Am. Chem. Soc., 1945, 67(2): 182–188CrossRefGoogle Scholar
  11. [11]
    Schmidt R W, Reilly C N. Concerning the Effect of Surface-active Substances on Polarographic Current[J]. J. Am. Chem. Soc., 1958, 80(9): 2087–2094CrossRefGoogle Scholar
  12. [12]
    Cakir S, Bicer E. Voltammetric and Spectroscopic Studies of Vanadium( V)-Nicotinamide Interactions at Physiological pH[J]. Turk. J. Chem., 2007, 31: 223–227Google Scholar
  13. [13]
    Abouatallah R, Kirk D, Thorpe S, et al. Reactivation of Nickel Cathodes by Dissolved Vanadium Species during Hydrogen Evolution in Alkaline Media[J]. Electrochim. Acta, 2001, 47(4): 613–621CrossRefGoogle Scholar
  14. [14]
    Abouatallah R M, Kirk D W, Thorpe S J. Characterization of Vanadium Deposit Formation at a Hydrogen Evolving Electrode in Alkaline Media[J]. J. Electrochem. Soc., 2001, 148(9): E357–E363CrossRefGoogle Scholar
  15. [15]
    Birke R L, Santa Cruz T D. Electroreduction of Vanadium(V) in the Presence and Absence of Chlorite Ion[J]. J. Electrochem. Soc., 1973, 120(3): 366–373CrossRefGoogle Scholar
  16. [16]
    Liu B, Zheng S L, Wang S N, et al. The Redox Behavior of Vanadium in Alkaline Solutions by Cyclic Voltammetry Method[J]. Electrochim. Acta, 2012, 76: 262–269CrossRefGoogle Scholar
  17. [17]
    Gasviani N A, Khutsishvili M S, Abazadze L M. Electrochemical Reduction of Sodium Metavanadate in an Equimolar KCl–NaCl Melt[J]. Russ. J. Electrochem., 2006, 42(9): 931–937CrossRefGoogle Scholar
  18. [18]
    Solheim A. Liquidus Temperature Depression in Cryolitic Melts[J]. Metall. Mater. Trans. B, 2012, 43B: 995–1000CrossRefGoogle Scholar
  19. [19]
    Solheim A, Rolseth S, Skybakmoen E, et al. Liquidus Temperatures for Primary Crystallization of Cryolite in Molten Salt Systems of Interest for Aluminum Electrolysis[J]. Metall. Mater. Trans. B, 1996, 27B: 739–744CrossRefGoogle Scholar
  20. [20]
    Hur J M, Cha J S, Choi E Y. Can carbon Be an Anode for Electrochemical Reduction in a LiCl-Li2O Molten Salt[J]. ECS Electrochem. Lett., 2014, 3(10): E5–E7CrossRefGoogle Scholar
  21. [21]
    Jiao S Q, Fray D J. Development of an Inert Anode for Electrowinning in Calcium Chloride–Calcium Oxide Melts[J]. Metall. Mater. Trans. B, 2010, 41(1): 74–79CrossRefGoogle Scholar
  22. [22]
    Kruesi W H, Fray D J. Fundamental Study of the Anodic and Cathodic Reactions during the Electrolysis of a Lithium Carbonate-Lithium Chloride Melt Using a Carbon Anode[J]. J. Appl. Electrochem., 1994, 24(11): 1102–1108CrossRefGoogle Scholar
  23. [23]
    Ijije H V, Lawrence R C, Chen G Z. Carbon Electrodeposition in Molten Salts: Electrode Reactions and Applications[J]. RSC Adv., 2014, 67: 35808–35817CrossRefGoogle Scholar
  24. [24]
    Li L X, Shi Z N, Gao B L, et al. Electrochemical Behavior of Carbonate Ion in the LiF–NaF–Li2CO3 System[J]. Electrochemistry, 2014, 82(12): 1072–1077CrossRefGoogle Scholar
  25. [25]
    Kaplan B, Groult H, Barhoun A, et al. Synthesis and Structural Characterization of Carbon Powder by Electrolytic Reduction of Molten Li-2CO3-Na2CO3-K2CO3[J]. J. Electrochem. Soc., 2002, 149(5): D72–D78CrossRefGoogle Scholar
  26. [26]
    Kawamura H, Ito Y. Electrodeposition of Cohesive Carbon Films on Aluminum in a LiCl–KCl–K2CO3 Melt[J]. J. Appl. Electrochem., 2000, 30: 571–574CrossRefGoogle Scholar
  27. [27]
    Keer H V, Dickerson D L, Kuwamoto H, et al. Heat Capacity of Pure and Doped V2O3 Single Crystals[J]. J. Solid State Chem., 1976, 19: 95–102CrossRefGoogle Scholar

Copyright information

© Wuhan University of Technology and Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  • Wei Weng (翁威)
    • 1
  • Mingyong Wang (王明涌)
    • 2
  • Xuzhong Gong
    • 2
  • Zhi Wang
    • 2
  • Dong Wang
    • 2
  • Zhancheng Guo
    • 1
  1. 1.State Key Laboratory of Advanced MetallurgyUniversity of Science and Technology BeijingBeijingChina
  2. 2.National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Key Laboratory of Green Process and Engineering, Institute of Process EngineeringChinese Academy of SciencesBeijingChina

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