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Comparative effect of REO co-dopant (La, Y, Nd) on ionic conductivity of Gd-doped CeO2 solid electrolyte for IT-SOFC

  • S. SoepriyantoEmail author
  • Y. Aristanti
  • T. Theresia
  • M. A. Sulthon
  • F. Baqir
  • W. P. Minwal
  • B. Dilasari
Research
  • 13 Downloads

Abstract

The intermediate temperature solid oxide fuel cell (IT-SOFC) is to be realized in shortcoming with the progressing of higher ionic conductivity for electrolyte materials. The CeO2-based electrolyte is known to have a high ionic conductivity and is suitable as a solid electrolyte of IT-SOFC with an operation temperature below 700 °C. CeO2 co-doped with rare earth oxides (REOs) La and Gd (LGDC), Y and Gd (YGDC), and also Nd and Gd (NGDC) were evaluated in this study. Samples were sintered at 1200 °C, 1300 °C, and 1400 °C for 3, 4, and 5 h. The results show that the increased sintering temperature, sintering time, and value of mole % dopant can increase the value of the ionic conductivity. The highest ionic conductivity number of 8.61 × 10−2 S cm−1 was obtained in the NGDC samples with the composition of 20 mol% of dopant at 600 °C.

Keywords

IT-SOFC Rare earth oxide Solid electrolytes Ceria-based Ionic conductivity 

Notes

References

  1. 1.
    Syarif, D.G., Soepriyanto, S., Ismunandar, Korda, A.A.: Effect of LSGM addition on electrical characteristics of 8YSZ ceramics for solid electrolyte. J. Aust. Ceram. Soc. 49(2), 52–59 (2013)Google Scholar
  2. 2.
    Laosiripojana, N., Wiyaratn, W., Kiatkittipong, W., Arpornwichanop, A., Soottitantawat, A., Assabumrungrat, S.: Reviews on solid oxide fuel cell technology. Eng J. 13(1), 0125–8281 (2009)CrossRefGoogle Scholar
  3. 3.
    Shimonosono, T., Hirata, Y., Sameshima, S.: Electronic conductivity of La-doped ceria ceramics. J. Am. Ceram. Soc. 88(8), 2114–2120 (2005)CrossRefGoogle Scholar
  4. 4.
    Wu, Y.-C.: Conductivity and microstructure analysis of ceria materials doped with multiple elements. Ceram. Int. 843, S747–S757 (2017)CrossRefGoogle Scholar
  5. 5.
    Coles-Aldridge, A.V., Baker, R.T.: Ionic conductivity in multiply substituted ceria-based electrolyte. Solid State Ionics. 316, 9–19 (2018)CrossRefGoogle Scholar
  6. 6.
    Zhou, M., Zheng, Y., Ge, L., Le, S., Guo, L.: Synthesis of Gd2O3 and Y2O3 co-dopped ceria-based electrolyte materials for intermediate temperature SOFC. J. Chin. Ceram. Soc. 5, 1012–1016 (2011)Google Scholar
  7. 7.
    Oksuzomer, M.A.F., Donmez, G., Sariboga, V., Altincekic, T.G.: Microstructure and ionic conductivity properties of gadolinia doped ceria (GdxCe1-xO2-x/2) electrolytes for intermediate temperature SOFCs prepared by the polyol method. Ceram. Int. 39, 7305–7315 (2013)CrossRefGoogle Scholar
  8. 8.
    Arabaci, A., Oksuzomer, M.A.F.: Preparation and characterization of 10 mol% Gd doped CeO2 (GDC) electrolyte for SOFC applications. Ceram. Int. 38, 6509–6515 (2012)CrossRefGoogle Scholar
  9. 9.
    Jaiswal, N., Upadhyay, S., Kumar, D., Parkash, O.: Ionic conductivity investigation in lanthanum (La) and strontium (Sr) co-doped ceria system. J. Power Sources. 222, 230–236 (2013)CrossRefGoogle Scholar
  10. 10.
    Kim, N., Kim, B., Lee, D.: Effect of co-dopant addition on properties of gadolinia-doped ceria electrolyte. jpowsour. 90, 139–143 (2000)Google Scholar
  11. 11.
    Anjaneya, K.C., Manjanna, J., Ashwin Kumar, V.M., Jayanna, H.S., Naveen, C.S.: Rare earth ion doped ceria as electrolytes for solid oxide fuel cell. Adv. Mater. Lett. 7(9), 743–747 (2016)CrossRefGoogle Scholar
  12. 12.
    Arabaci, A.: Effect of Er, Gd, and Nd co-dopants on the properties of Sm-doped ceria electrolyte for IT-SOFC. Metall Mater Trans A. 48, 2282–2288 (2017)CrossRefGoogle Scholar
  13. 13.
    Morales, M., Segarra, M.: Materials issues for solid oxide fuel cells design. Handbook of Clean Energy Systems. 2, 1165–1181 (2015)Google Scholar

Copyright information

© Australian Ceramic Society 2019

Authors and Affiliations

  1. 1.Department of Metallurgical EngineeringBandung Institute of TechnologyBandungIndonesia
  2. 2.Department of Metallurgical and Materials EngineeringBandung Institute of Technology and ScienceBekasiIndonesia

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