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Early interaction between Fe–Cr alloy metallic interconnect and Sr-doped LaMnO3 cathodes of solid oxide fuel cells

Published online by Cambridge University Press:  01 March 2005

S.P. Jiang ,
Sam Zhang  and
Y.D. Zhen
S.P. Jiang*
Affiliation:
Fuel Cells Strategic Research Program, School of Mechanical and Production Engineering, Nanyang Technological University, Singapore 639798
Sam Zhang
Affiliation:
Fuel Cells Strategic Research Program, School of Mechanical and Production Engineering, Nanyang Technological University, Singapore 639798
Y.D. Zhen
Affiliation:
Fuel Cells Strategic Research Program, School of Mechanical and Production Engineering, Nanyang Technological University, Singapore 639798
*
a) Address all correspondence to this author. e-mail: mspjiang@ntu.edu.sg
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Abstract

The initial stages of the interaction between the Fe–Cr alloy metallic interconnect and Sr-doped LaMnO3 (LSM) electrode of solid oxide fuel cells (SOFC) were investigated under cathodic polarization at the temperature range of 700–900 °C. Cr deposits on the Y2O3–ZrO2 (YSZ) electrolyte surface increased with the polarization time. However, it was observed that at the early stages of the reaction, there is no preferential Cr deposition at the three-phase boundary areas at the LSM electrode/YSZ electrolyte interface region. With the decrease of the temperature the Cr deposition reduced significantly, probably due to the significant reduction in the partial pressure of the gaseous Cr species and the cationic diffusivities in the LSM electrode. The results clearly demonstrated that the deposition of Cr species at the LSM electrode/YSZ electrolyte is basically a chemical reaction and kinetically controlled by the nucleation reaction between the gaseous Cr species and the Mn2+ species generated under cathodic polarization.

Keywords

AlloyCoatingScanning electron microscopy (SEM)
Type
Articles
Information
Journal of Materials Research , Volume 20 , Issue 3 , March 2005 , pp. 747 - 758
Copyright
Copyright © Materials Research Society 2005

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References

REFERENCES

1.Minh, N.Q. and Takahashi, T.: Science and Technology of Ceramic Fuel Cells (Elsevier, Amsterdam, The Netherlands, 1995).Google Scholar
2.De Jonghe, L.C., Jacobson, C.P. and Visco, S.J.: Supported electrolyte thin film synthesis of solid oxide fuel cells. Ann. Rev. Mater. Res. 33, 169 (2003).CrossRefGoogle Scholar
3.Jiang, S.P., Zhang, S., Zhen, Y.D. and Koh, A.P.: Performance of GDC-impregnated Ni anodes of solid oxide fuel cells. Electrochem. Solid-State Lett. 7, A282 (2004).CrossRefGoogle Scholar
4.Murray, E.P., Tsai, T. and Barnett, S.A.: A direct-methane fuel cell with a ceria-based anode. Nature 400, 649 (1999).CrossRefGoogle Scholar
5.Shao, Z. and Haile, S.M.: A high performance cathode for the next generation of solid-oxide fuel cells. Nature 431, 170 (2004).CrossRefGoogle ScholarPubMed
6.Zhu, W.Z. and Deevi, S.C.: Opportunity of metallic interconnects for solid oxide fuel cells: A status on contact resistance. Mater. Res. Bull. 38, 957 (2003).CrossRefGoogle Scholar
7.Huang, K., Hou, P.Y. and Goodenough, J.B.: Characterization of iron-based alloy interconnects for reduced temperature solid oxide fuel cells. Solid State Ionics 129, 237 (2000).CrossRefGoogle Scholar
8.Horita, T., Xiong, Y., Yamaji, K., Sakai, N. and Yokokawa, H.: Evaluation of Fe-Cr alloys as interconnects for reduced operation temperature SOFCs. J. Electrochem. Soc. 150 A243 (2003).CrossRefGoogle Scholar
9.Brylewski, T., Nanko, M., Maruyama, T. and Przybylski, K.: Application of Fe-16Cr ferric alloy to interconnector for a solid oxide fuel cell. Solid State Ionics 143, 131 (2001).CrossRefGoogle Scholar
10.Hilpert, K., Das, D., Miller, M., Peck, D.H. and Weiß, R.: Chromium vapor species over solid oxide fuel cell interconnect materials and their potential for degradation processes. J. Electrochem. Soc. 143, 3642 (1996).CrossRefGoogle Scholar
11.Graham, H.G. and Davis, H.H.: Oxidation/vaporization kinetics of Cr2O3. J. Am. Ceram. Soc. 54, 89 (1971).CrossRefGoogle Scholar
12.Taniguchi, S., Kadowaki, M., Kawamura, H., Yasuo, T., Akiyama, Y., Miyake, Y. and Saitoh, T.: Degradation phenomena in the cathode of a solid oxide fuel cell with an alloy separator. J. Power Sources 55, 73 (1995).CrossRefGoogle Scholar
13.Badwal, S.P.S., Deller, R., Foger, K., Ramprakash, Y. and Zhang, J.P.: Interaction between chromia forming alloy interconnects and air electrode of solid oxide fuel cells. Solid State Ionics 99, 297 (1997).CrossRefGoogle Scholar
14.Matsuzaki, Y. and Yasuda, I.: Electrochemical properties of a SOFC cathode in contact with a chromium-containing alloy separator. Solid State Ionics 132, 271 (2000).CrossRefGoogle Scholar
15.Jiang, S.P., Zhang, J.P. and Foger, K.: Deposition of chromium species at Sr-doped LaMnO3 electrodes in solid oxide fuel cells. II. Effect on O2 reduction reactions. J. Electrochem. Soc. 147, 3195 (2000).CrossRefGoogle Scholar
16.Jiang, S.P.: Use of gaseous Cr species to diagnose surface and bulk process for O2 reduction in solid oxide fuel cells. J. Appl. Electrochem. 31, 181 (2001).CrossRefGoogle Scholar
17.Matsuzaki, Y. and Yasuda, I.: Dependence of SOFC cathode degradation by chromium-containing alloy on compositions of electrodes and electrolytes. J. Electrochem. Soc. 148, A126 (2001).CrossRefGoogle Scholar
18.Jiang, S.P., Zhang, J.P., Apateanu, L. and Foger, K.: Deposition of chromium species at Sr-doped LaMnO3 electrodes in solid oxide fuel cells. I. Mechanism and kinetics. J. Electrochem. Soc. 147, 4013 (2000).CrossRefGoogle Scholar
19.Jiang, S.P., Zhang, J.P. and Foger, K.: Deposition of chromium species at Sr-doped LaMnO3 electrodes in solid oxide fuel cells. III. Effect of air flow. J. Electrochem. Soc. 148, C447 (2001).CrossRefGoogle Scholar
20.Jiang, S.P., Zhang, J.P. and Zheng, X.G.: A comparative investigation of chromium deposition at air electrodes of solid oxide fuel cells. J. Eur. Ceram. Soc. 22, 361 (2002).CrossRefGoogle Scholar
21.Jiang, S.P., Zhang, J.P., Ramprakash, Y., Milosevic, D. and Wilshier, K.: An investigation of shelf-life of strontium doped LaMnO3 materials. J. Mater. Sci. 35, 2735 (2000).CrossRefGoogle Scholar
22.Mitterdorfer, A. and Gauckler, L.J.: La2Zr2O7 formation and oxygen reduction kinetics of the La0.85Sr0.15MnyO3, O2 (g)|YSZ system. Solid State Ionics 111, 185 (1998).CrossRefGoogle Scholar
23.Jiang, S.P., Love, J.G., Zhang, J.P., Hoang, M., Ramprakash, Y., Hughes, A.E. and Badwal, S.P.S.: The electrochemical performance of LSM/zirconia-yttria interface as a function of A-site non-stoichiometry and cathodic current treatment. Solid State Ionics 121, 1 (1999).CrossRefGoogle Scholar
24.Jiang, S.P. and Love, J.G.: Origin of the initial polarization behavior of Sr-doped LaMnO3 for O2 reduction in solid oxide fuel cells. Solid State Ionics 138, 183 (2001).CrossRefGoogle Scholar
25.Jiang, S.P., Love, J.G. and Ramprakash, Y.: Electrode behaviour at the (La,Sr)MnO3/Y2O3-ZrO2 interface by electrochemical impedance spectroscopy. J. Power Sources 110, 201 (2002).CrossRefGoogle Scholar
26.Jiang, S.P. and Wang, W.: Effect of polarization on the interface between (La,Sr)MnO3 electrode and Y2O3-ZrO2 electrolyte. Electrochem. Solid-State Lett. 8, A115 (2005).CrossRefGoogle Scholar
27.Lee, H.Y., Cho, W.S., Oh, S.M., Wiemhöfer, H-D. and Göpel, W.: Active reaction sites for oxygen reduction in La0.9Sr0.1MnO3/YSZ electrodes. J. Electrochem. Soc. 142, 2659 (1995).CrossRefGoogle Scholar
28.Chen, X.J., Chan, S.H. and Khor, K.A.: Defect chemistry of La1−xSrxMnO3 under cathodic polarization. Electrochem. Solid-State Lett. 7, A144 (2004).CrossRefGoogle Scholar
29.Weber, A., Männer, R., Jobst, B., Schiele, M., Cerva, H., Waser, R., and Ivers-Tiffée, E.: In Proc. 17th Riso Int. Symp. Mater. Sci. High Temperature Electrochemistry: Ceramics and Metals, edited by Poulsen, F.W., Bonanos, N., Linderoth, S., Mogensen, M. and Zacharau-Christiansen, B. (Risø National Laboratory, Roskilde, Denmark, 1996), p. 473.Google Scholar
30.Jiang, S.P., Zhang, J-P. and Föger, K.: Chemical interaction between 3 mol% yttria-zirconia and Sr-doped lanthanum mangnite. J. Eur. Ceram. Soc. 23, 1865 (2003).CrossRefGoogle Scholar
31.Stearns, C.A., Kohl, F.K. and Fryburg, G.C.: Oxidative vaporization kinetics of Cr2O3 in oxygen from 1000 to 1300 °C. J. Electrochem. Soc. 121, 945 (1974).CrossRefGoogle Scholar
32.Schulz, O. and Martin, M.: Preparation and characterization of La1−xSrxGa1−yMgyO3−(x +y )/2 for the investigation of cation diffusion processes. Solid State Ionics 135, 549 (2000).CrossRefGoogle Scholar
33.Horita, T., Ishikawa, M., Yamaji, K., Sakai, N., Yokokawa, H. and Dokiya, M.: Cation diffusion in (La,Ca)CrO3 perovskite by SIMS. Solid State Ionics 108, 383 (1998).CrossRefGoogle Scholar