Advertisement

Synthesis and Characterization of Ce0.85La0.15O1.925 Nanorods (Li, Na)2CO3 Nanocomposites as a Solid Electrolyte for LT-SOFCs

  • Nandini Jaiswal
  • Devendra Kumar
  • Shail Upadhyay
  • Om ParkashEmail author
Technical Paper
  • 2 Downloads

Abstract

Nanorods of Ce0.85La0.15O1.925 (CLO) have been synthesized using a wet-chemical route and characterized by thermal analysis, phase, crystal structure, microstructure and electrical conductivity. Nanorods have been stabilized by adding binary eutectic mixture of Li2CO3 and Na2CO3. This hinders the grain growth of Ce0.85La0.15O1.925 nanorods. Cubic fluorite structure of ceria has been detected by X-ray diffraction. A sharp increase in the conductivity has been observed at a certain temperature, corresponding to superionic transition at the interfaces. This composition shows the highest conductivity, 1.14 × 10−1 S/cm at 500 °C with activation energy of conduction 0.19 eV. This value is about three orders of magnitude higher than that of Ce0.85La0.15O1.925 (2.02 × 10−4 S/cm at 500 °C) nanoparticles prepared by auto-combustion route.

Keywords

Wet-chemical synthesis Doped ceria Nanorods Nanocomposite Electrical conductivity 

Notes

Acknowledgements

Thanks to Department of Science and Technology, New Delhi, and MHRD for financial support.

References

  1. 1.
    Zhu B, Power Sources J 114 (2003) 1.CrossRefGoogle Scholar
  2. 2.
    Bin Z, Nanosci Nanotechnol J 11 (2011) 8873.CrossRefGoogle Scholar
  3. 3.
    Zhu B, Liu X, Zhou P, Yang X, Zhu Z, and Zhu W, Electrochem Commun 3 (2001) 566.CrossRefGoogle Scholar
  4. 4.
    Hu J, Tosto S, Guo Z, and Wang Y, Power Sources J 154 (2006) 106.CrossRefGoogle Scholar
  5. 5.
    Bodén A, Di J, Lagergren C, Lindbergh G, and Wang C, Power Sources J 172 (2007) 520.CrossRefGoogle Scholar
  6. 6.
    Huang J, Mao Z, Liu Z, and Wang C, Electrochem Commun 92 (2007) 2601.CrossRefGoogle Scholar
  7. 7.
    Huang J, Mao Z, Yang L, and Peng R, Solid State Lett 8 (2005) A437.CrossRefGoogle Scholar
  8. 8.
    Zhu B, and Mat M, Int J Electrochem Sci 1 (2006) 383.Google Scholar
  9. 9.
    Di J, Chen M, Wang C, and Zheng J, Power Sources J 195 (2010) 4695.CrossRefGoogle Scholar
  10. 10.
    Fan L, Wang C, Chen M, and Zhu B, Power Sources J 234 (2013) 154.CrossRefGoogle Scholar
  11. 11.
    Zhu B, Xiangrong L, Mingtao S, Shijun J, and Juncai S, Solid State Sci 5 (2003) 1127.CrossRefGoogle Scholar
  12. 12.
    Zhu B, Yang X T, Xu J, Zhu Z G, Ji S J, Sun M T, and Sun J C, Power Sources J 118 (2003) 47.CrossRefGoogle Scholar
  13. 13.
    Jaiswal N, Uppadhyay S, Kumar D, and Parkash O, Int J Appl Ceram Technol 12 (2015) 1080.CrossRefGoogle Scholar
  14. 14.
    Xia Y, Yang P, Sun Y, Wu Y, Mayers B, Gates B, Yin Y, Kim F, and Yan H, Adv Mater 15 (2003) 353.CrossRefGoogle Scholar
  15. 15.
    Lee S, Cho S, and Cheon J, Adv Mater 15 (2003) 441.CrossRefGoogle Scholar
  16. 16.
    Hu J, Odom T, and Lieber C, Acc Chem Res 32 (1999) 435.CrossRefGoogle Scholar
  17. 17.
    Ying B, Wang X, Li S, Toprak M, Zhu B, and Muhammed M, Adv Mater 22 (2010) 1640.CrossRefGoogle Scholar
  18. 18.
    Holland T J B, and Redfern S A T, Mineral Mag 61 (1997) 65.CrossRefGoogle Scholar
  19. 19.
    Singh N K, Singh P, Singh M K, Kumar D, and Parkash O, Solid State Ion 192 (2011) 431.CrossRefGoogle Scholar
  20. 20.
    Shannon R D, Acta Cryst A 32 (1976) 751.CrossRefGoogle Scholar
  21. 21.
    Christie G, and Berkel F, Solid State Ion 83 (1996) 17.CrossRefGoogle Scholar
  22. 22.
    Hodge M, Ingram M, and West A, Electro Anal Chem J 74 (1976) 125.CrossRefGoogle Scholar
  23. 23.
    Jaiswal N, Kumar D, Upadhyay S, and Parkash O, Power Sources J 222 (2013) 230.CrossRefGoogle Scholar
  24. 24.
    Jaiswal N, Kumar D, Upadhyay S, and Parkash O, Int J Hydrogen Energy 40 (2015) 3313.CrossRefGoogle Scholar
  25. 25.
    Huang J, Gao Z, and Mao Z, Int J Hydrogen Energy 35 (2010) 4270.CrossRefGoogle Scholar
  26. 26.
    Bhoga S, and Singh K, Solid State Ion 111 (1998) 85.CrossRefGoogle Scholar
  27. 27.
    Zhao Y, Xia C, Xu Z, and Li Y, Int J Hydrogen Energy 37 (2012) 11378.CrossRefGoogle Scholar
  28. 28.
    Paola C C D, Rodrigo A M M, Jorje L D A F, Jose A A, Ana C M R, and Cosme R M D S, Ceram Int 44 (2018) 2138.CrossRefGoogle Scholar

Copyright information

© The Indian Institute of Metals - IIM 2019

Authors and Affiliations

  • Nandini Jaiswal
    • 1
  • Devendra Kumar
    • 1
  • Shail Upadhyay
    • 2
  • Om Parkash
    • 1
    Email author
  1. 1.Department of Ceramic EngineeringIndian Institute of Technology (Banaras Hindu University)VaranasiIndia
  2. 2.Department of PhysicsIndian Institute of Technology (Banaras Hindu University)VaranasiIndia

Personalised recommendations