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Phase transformation of the brownmillerite SrCoO2.5 thin film through alkaline water electrolysis

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An Erratum to this article was published on 01 August 2014

Abstract

A phase transformation from insulating brownmillerite SrCoO2.5 to conducting perovskite SrCoO3 through electrochemical oxidation has been demonstrated for thin films of SrCoOx on a SrTiO3 (001) substrate. The cobalt-oxide film strongly favors the brownmillerite phase of SrCoO2.5 instead of the perovskite phase of SrCoO3 on a SrTiO3 (001) substrate due to its low lattice mismatch. Therefore, the phase transformation has its own retention. The alkaline water electrolysis occurs between the copper cathode and the SrCoO2.5 film anode. The H+ ions are attracted to the cathode and generate H2 gas. The OH− ions are attracted to the film’s surface and generate a rich amount of oxygen to fill the oxygen vacancy channel of brownmillerite SrCoO2.5. The phase transformation was verified from the change in the out-of-plane lattice constant and the change in the resistivity of the electrolyzed film.

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Refrerences

  1. J. Mannhart and D. G. Schlom, Nature 430, 620 (2004).

    Article  ADS  Google Scholar 

  2. A. Nemudry, P. Rudolf and R. Schöllhorn, Chem. Mater. 8, 2232 (1996).

    Article  Google Scholar 

  3. R. Le Toquin, W. Paulus, A. Cousson, C. Prestipino and C. Lamberti, J. Am. Chem. Soc. 128, 13161 (2006).

    Article  Google Scholar 

  4. A. Muñoz, C. de la Calle, J. A. Alonso, P. M. Botta, V. Pardo, D. Baldomir and J. Rivas, Phys. Rev. B 78, 054404 (2008).

    Article  ADS  Google Scholar 

  5. H. Jeen et al., Nature Mater. 12, 1057 (2013).

    Article  ADS  Google Scholar 

  6. Y. Long, Y. Kaneko, S. Ishiwata, Y. Taguchi and Y. Tokura, J. Phys. Condens. Matter. 23, 245601 (2011).

    Article  ADS  Google Scholar 

  7. N. Ichikawa, M. Iwanowska, M. Kawai, C. Calers, W. Paulus and Y. Shimakawa, Dalton Trans. 41, 10507 (2012).

    Article  Google Scholar 

  8. H. Jeen, W. S. Choi, J. W. Freeland, H. Ohta, C. U. Jung and H. N. Lee, Adv. Mater. 25, 3651 (2013).

    Article  Google Scholar 

  9. W. Kreuter and H. Hofmann, Int. J. Hydrogen Energy 23, 661 (1998).

    Article  Google Scholar 

  10. C. Neagu, H. Jansen, H. Gardeniers and M. Elwenspoek, Mechatronics 10, 571 (2000).

    Article  Google Scholar 

  11. H. Ohta, Y. Sato, T. Kato, S. W. Kim, K. Nomura, Y. Ikuhara and H. Hosono, Nature Commun. 1, 118 (2010).

    Article  ADS  Google Scholar 

  12. J. Zhu, X. H. Wei, Y. Zhang and Y. R. Li, J. Appl. Phys. 100, 104106 (2006).

    Article  ADS  Google Scholar 

  13. C. U. Jung, H. Yamada, M. Kawasaki and Y. Tokura, Appl. Phys. Lett. 84, 2590 (2004).

    Article  ADS  Google Scholar 

  14. Y. J. Chang, J. I. Kim and C. U. Jung, J. Magnetics 13, 61 (2008).

    Article  Google Scholar 

  15. R. N. Singh, JF. Koenig, G. Poillerat and P. Chartier, J. Electrochem, Soc. 137, 1408 (1990).

    Article  Google Scholar 

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Authors and Affiliations

  1. Department of Physics, Hankuk University of Foreign Studies, Yongin, 449-791, Korea

    Octolia Togibasa Tambunan, Min Young Lee, Deok Hyeon Kim, Kadek Juliana Parwanta & Chang Uk Jung

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  1. Octolia Togibasa Tambunan
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  2. Min Young Lee
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  3. Deok Hyeon Kim
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  4. Kadek Juliana Parwanta
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  5. Chang Uk Jung
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Correspondence to Chang Uk Jung.

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Tambunan, O.T., Lee, M.Y., Kim, D.H. et al. Phase transformation of the brownmillerite SrCoO2.5 thin film through alkaline water electrolysis. Journal of the Korean Physical Society 64, 1845–1848 (2014). https://doi.org/10.3938/jkps.64.1845

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  • DOI: https://doi.org/10.3938/jkps.64.1845

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