Modification of oxygen surface exchange kinetics on a Dense film of La0.6Sr0.4CoO3-δ by application of porous (La,Sr)2CoO4

T. Kawada; T. Tairako; K. Nagao; A. Unemoto; M. Sase; K. Yashiro; S. Hashimoto; K. Amezawa

doi:10.1109/NANO.2016.7751558

Modification of oxygen surface exchange kinetics on a Dense film of La_0.6Sr_0.4CoO_3-δ by application of porous (La,Sr)₂CoO₄

T. Kawada, T. Tairako, K. Nagao, A. Unemoto, M. Sase, K. Yashiro, S. Hashimoto, K. Amezawa

Tohoku University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Dense film electrodes of La_0.6Sr_0.4CoO₃ were formed on ceria based solid electrolytes by pulsed laser deposition. The oxygen exchange reaction rate on the surface was evaluated by impedance spectroscopy, and the effect of coexistence of LaSrCoO₄ phase on the surface was investigated. The tendency of Sr segregation on the surface of La_0.6Sr_0.4CoO₃ was mitigated by addition of porous LaSrCoO₄ layer, which reduced the activation energy of oxygen exchange reaction and enhanced the reaction rate.

Original language	English
Title of host publication	16th International Conference on Nanotechnology - IEEE NANO 2016
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	365-366
Number of pages	2
ISBN (Electronic)	9781509039142
DOIs	https://doi.org/10.1109/NANO.2016.7751558
Publication status	Published - 2016 Nov 21
Event	16th IEEE International Conference on Nanotechnology - IEEE NANO 2016 - Sendai, Japan Duration: 2016 Aug 22 → 2016 Aug 25

Publication series

Name	16th International Conference on Nanotechnology - IEEE NANO 2016

Conference

Conference	16th IEEE International Conference on Nanotechnology - IEEE NANO 2016
Country/Territory	Japan
City	Sendai
Period	16/8/22 → 16/8/25

Access to Document

10.1109/NANO.2016.7751558

Cite this

Kawada, T., Tairako, T., Nagao, K., Unemoto, A., Sase, M., Yashiro, K., Hashimoto, S., & Amezawa, K. (2016). Modification of oxygen surface exchange kinetics on a Dense film of La_0.6Sr_0.4CoO_3-δ by application of porous (La,Sr)₂CoO₄. In 16th International Conference on Nanotechnology - IEEE NANO 2016 (pp. 365-366). Article 7751558 (16th International Conference on Nanotechnology - IEEE NANO 2016). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/NANO.2016.7751558

Kawada, T. ; Tairako, T. ; Nagao, K. et al. / Modification of oxygen surface exchange kinetics on a Dense film of La_0.6Sr_0.4CoO_3-δ by application of porous (La,Sr)₂CoO₄. 16th International Conference on Nanotechnology - IEEE NANO 2016. Institute of Electrical and Electronics Engineers Inc., 2016. pp. 365-366 (16th International Conference on Nanotechnology - IEEE NANO 2016).

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abstract = "Dense film electrodes of La0.6Sr0.4CoO3 were formed on ceria based solid electrolytes by pulsed laser deposition. The oxygen exchange reaction rate on the surface was evaluated by impedance spectroscopy, and the effect of coexistence of LaSrCoO4 phase on the surface was investigated. The tendency of Sr segregation on the surface of La0.6Sr0.4CoO3 was mitigated by addition of porous LaSrCoO4 layer, which reduced the activation energy of oxygen exchange reaction and enhanced the reaction rate.",

author = "T. Kawada and T. Tairako and K. Nagao and A. Unemoto and M. Sase and K. Yashiro and S. Hashimoto and K. Amezawa",

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Kawada, T, Tairako, T, Nagao, K, Unemoto, A, Sase, M, Yashiro, K, Hashimoto, S & Amezawa, K 2016, Modification of oxygen surface exchange kinetics on a Dense film of La_0.6Sr_0.4CoO_3-δ by application of porous (La,Sr)₂CoO₄. in 16th International Conference on Nanotechnology - IEEE NANO 2016., 7751558, 16th International Conference on Nanotechnology - IEEE NANO 2016, Institute of Electrical and Electronics Engineers Inc., pp. 365-366, 16th IEEE International Conference on Nanotechnology - IEEE NANO 2016, Sendai, Japan, 16/8/22. https://doi.org/10.1109/NANO.2016.7751558

Modification of oxygen surface exchange kinetics on a Dense film of La_0.6Sr_0.4CoO_3-δ by application of porous (La,Sr)₂CoO₄. / Kawada, T.; Tairako, T.; Nagao, K. et al.
16th International Conference on Nanotechnology - IEEE NANO 2016. Institute of Electrical and Electronics Engineers Inc., 2016. p. 365-366 7751558 (16th International Conference on Nanotechnology - IEEE NANO 2016).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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N2 - Dense film electrodes of La0.6Sr0.4CoO3 were formed on ceria based solid electrolytes by pulsed laser deposition. The oxygen exchange reaction rate on the surface was evaluated by impedance spectroscopy, and the effect of coexistence of LaSrCoO4 phase on the surface was investigated. The tendency of Sr segregation on the surface of La0.6Sr0.4CoO3 was mitigated by addition of porous LaSrCoO4 layer, which reduced the activation energy of oxygen exchange reaction and enhanced the reaction rate.

AB - Dense film electrodes of La0.6Sr0.4CoO3 were formed on ceria based solid electrolytes by pulsed laser deposition. The oxygen exchange reaction rate on the surface was evaluated by impedance spectroscopy, and the effect of coexistence of LaSrCoO4 phase on the surface was investigated. The tendency of Sr segregation on the surface of La0.6Sr0.4CoO3 was mitigated by addition of porous LaSrCoO4 layer, which reduced the activation energy of oxygen exchange reaction and enhanced the reaction rate.

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Kawada T, Tairako T, Nagao K, Unemoto A, Sase M, Yashiro K et al. Modification of oxygen surface exchange kinetics on a Dense film of La_0.6Sr_0.4CoO_3-δ by application of porous (La,Sr)₂CoO₄. In 16th International Conference on Nanotechnology - IEEE NANO 2016. Institute of Electrical and Electronics Engineers Inc. 2016. p. 365-366. 7751558. (16th International Conference on Nanotechnology - IEEE NANO 2016). doi: 10.1109/NANO.2016.7751558