Skip to main content
×
×
Home

In situ X-ray Studies of (La,Sr)MnO3_δ, (La,Sr)CoO3_δ, and La0.6Sr0.4Co0.2Fe0.8O3-δ Thin Film SOFC Cathodes Grown by Pulse Laser Deposition

  • Kee-Chul Chang (a1), Brian Ingram (a2), Paul Salvador (a3), Bilge Yildiz (a4) and Hoydoo You (a1)...
Abstract

We will briefly review in situ synchrotron x-ray investigation of model thin film cathode systems for solid oxide fuel cells. The film cathodes examined in this study are (La,Sr)MnO3_δ (LSM), (La,Sr)CoO3_δ (LSC), and La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) thin films epitaxially grown on YSZ single crystal substrates by the pulse laser deposition technique. We find in all cases that Sr is enriched or segregated to the surface of the film cathodes. We concluded that the Sr enrichments or segregations are mainly the results of annealing because they do not depend on whether the cathodes are electrochemically biased or not during annealing. However, at least in the case of LSCF, we find that B-site Co segregates rather uniformly to the surface and the segregation responds sensitively and reversibly to the electrochemical bias.

Copyright
References
Hide All
1. Adler, S. B., Chem. Rev., 104, 4791 (2004).
2. Petrov, A. N., Kononchuk, O. F., Andreev, A. V., Cherepanov, V. A., and Kofstad, P., Solid State Ionics, 80, 189 (1995).
3. Ralph, J. M., Schoeler, A. C., and Krumpelt, M., J. Mater. Sci., 36, 1161 (2001).
4. Tai, L.-W., Nasrallah, M.M., Anderson, H.U., Sparlin, D.M., and Sehlin, S.R., Solid State lonics 76, 261 (1995); ibid, 76, 273(1995).
5. Jiang, S.P., Solid State Ionics, 146, 1 (2002).
6. Xia, C. and Liu, M., Adv Mater 14, 521 (2002).
7. Choi, Y., Mebane, D.S., Wang, J., Liu, M., Top Catal, 46, 386 (2007).
8. Chen, X.,a) Wu, N. J., Smith, L., and Ignatiev, A., Appl. Phys. Lett., 84, 2700 (2004).
9. Mutoro, E., Crumlin, E. J., Biegalski, M. D., Christen, H. M., Shao-Horn, Y., Energy Env. Sci., 4, 3689 (2011).
10. Noh, H.-S., Son, J.-W., Lee, H., Park, J.-S., Lee, H.-W., and Lee, J.-H., fuel cells, 10, 1057 (2010).
11. Plonczak, P., Sørensen, D. R., Søgaard, M., Esposito, V., Hendriksen, P. V., Solid State Ionics, 217, 54 (2012)
12. Huber, A., Falk, M., Rohnke, M., Luerssen, B., Amati, M., Gregoratti, L., Hesse, D., Janek, J., J. Catal., 294, 79 (2012).
13. Cai, Z., Kuru, Y., Han, J.W., Chen, Y., Yildiz, B., J. Am. Chem. Soc., 133, 17696 (2011).
14. Jalili, H., Han, J. W., Kuru, Y., Cai, Z., Yildiz, B., J. Phys. Chem. Lett. 2, 801 (2011).
15. Cai, Z., Kubicek, M., Fleig, J., Yildiz, B., Chem. Mater. 24, 1116 (2012)
16. Yildiz, B., Myers, D.J., Carter, J.D., Chang, K.C., You, H., Adv. Solid oxide fuel cells III, Cer. Eng. & Sci. Proc., 28, 153 (2008).
17. Chang, K.C., Ingram, B., Kavaipatti, B., Yildiz, B., Hennessy, D., Salvador, P., Leyarovska, N., You, H., Solid State Ionics, Mat. Res. Soc. Symp. Proc., 1126, 27 (2009).
18. Jackson, D.J., Classical Electrodynamics, Wiley, New York, 1999.
19. Becker, R.S., Golovchenko, J.A., Patel, J. R., Phys. Rev. Lett., 50, 153 (1983).
20. Bedzyk, M., Encyclopedia of Cond. Matt. Phys. 6, 330 (2005).
21. Sayers, D.E., Stern, E.A., Lytle, F.W., Phys. Rev. Lett. 27 1204 (1971).
22. Rehr, J., Albers, R., Rev. Mod. Phys. 72, 621 (2000).
23. Chang, K.C. and You, H., unpublished.
24. Gopalan, S. and Ludwig, K., private communication.
25. Urushibara, A., Moritomo, Y., Arima, T., Asamitsu, A., Kido, G., Tokura, Y., Phys. Rev. B 51, 14103 (1995).
26. Tokura, Y., Urushibara, A., Moritomo, Y., Arima, T., Asamitsu, A., Kido, G., Furukawa, N., J. Phys. Soc. Jpn., 63, 3931 (1994).
27. Wu, J. and Leighton, C., Phys. Rev. B 67 174408 (2003).
28. Mineshige, A., Kobune, M., Fujii, S., Ogumi, Z., Inaba, M., Yao, T., Kikuchi, K., J. Solid State Chem., 142, 374 (1999).
29. Nielsen, J., Jacobsen, T., Solid State Ionics. 178, 1001 (2007).
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

MRS Online Proceedings Library (OPL)
  • ISSN: -
  • EISSN: 1946-4274
  • URL: /core/journals/mrs-online-proceedings-library-archive
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Keywords

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 5 *
Loading metrics...

Abstract views

Total abstract views: 442 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 16th July 2018. This data will be updated every 24 hours.