Studies of Oxygen Exchange on Thin-Film La0.6Sr0.4CoO3-δ Using Nonlinear Electrochemical Impedance Spectroscopy (NLEIS)

被引：0
|
作者：
Wilson, Jamie R. [1 ]
Sase, Maya
Kawada, Tatsuya
Adler, Stuart B. [1 ]
机构：
[1] Univ Washington, Dept Chem Engn, Seattle, WA 98195 USA
来源：
SOLID OXIDE FUEL CELLS 10 (SOFC-X), PTS 1 AND 2 | 2007年 / 7卷 / 01期
关键词：
D O I：
10.1149/1.2729206
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In order to probe the mechanism of O-2 reduction on mixed-conducting oxides, we have measured the nonlinear harmonic impedance response of a dense thin film electrode of La0.6Sr0.4CoO3-delta. (LSC-64). This approach reveals the nonlinear rate law governing O-2 reduction/oxidation. Comparison to various models based on nonequilibrium thermodynamics suggests that O-2 reduction on LSC-64 is limited by dissociative adsorption. These results are discussed in the context of known equilibrium exchange kinetics and electronic structure. Implications for porous electrode kinetics are also discussed.
引用
收藏
页码：1089 / 1096
页数：8
相关论文
共 50 条
  • [21] Microstructure refinement of pulsed laser deposited La0.6Sr0.4CoO3-δ thin-film cathodes for solid oxide fuel cell
    Hwang, Jaeyeon
    Lee, Heon
    Yoon, Kyung Joong
    Lee, Hae-Weon
    Lee, Jong-Ho
    Song, Hue-Sup
    Son, Ji-Won
    METALS AND MATERIALS INTERNATIONAL, 2013, 19 (06) : 1347 - 1349
  • [22] Electrochemical characteristics of La0.6Sr0.4CoO3-δ, Pr0.6Sr0.4CoO3-δ and Gd0.6Sr0.4CoO3-δ on Ce0.85Sm0.15O1.925 electrolyte
    Lust, E
    Möller, P
    Kivi, I
    Nurk, G
    Kallip, S
    JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 2005, 9 (12) : 882 - 889
  • [23] Electrochemical characteristics of La0.6Sr0.4CoO3-δ, Pr0.6Sr0.4CoO3-δ and Gd0.6Sr0.4CoO3-δ on Ce0.85Sm0.15O1.925 electrolyte
    Enn Lust
    Priit Möller
    Indrek Kivi
    Gunnar Nurk
    Silvar Kallip
    Journal of Solid State Electrochemistry, 2005, 9 : 882 - 889
  • [24] Electrochemical performance of nanoscaled La0.6Sr0.4CoO3-δ as intermediate temperature SOFC cathode
    Hayd, J.
    Guntow, U.
    Ivers-Tiffee, E.
    IONIC AND MIXED CONDUCTING CERAMICS 7, 2010, 28 (11): : 3 - 15
  • [25] Strain-induced structure and oxygen transport interactions in epitaxial La0.6Sr0.4CoO3-δ thin films
    Ivanov, Yurii P.
    Kubicek, Markus
    Siebenhofer, Matthaus
    Viernstein, Alexander
    Hutter, Herbert
    Fleig, Jurgen
    Chuvilin, Andrey
    Zhang, Zaoli
    COMMUNICATIONS MATERIALS, 2020, 1 (01)
  • [26] Synthesis and application of nano porous La0.6Sr0.4CoO3-δ on an oxygen separation membrane
    Lee, K. -J.
    Park, J. -W.
    Yang, J. -K.
    Lee, K-S.
    Choa, Y. -H.
    SCIENCE OF ENGINEERING CERAMICS III, 2006, 317-318 : 709 - 712
  • [27] Oxygen Electrocatalysis on Epitaxial La0.6Sr0.4CoO3-δ Perovskite Thin Films for Solid Oxide Fuel Cells
    Crumlin, Ethan J.
    Ahn, Sung-Jin
    Lee, Dongkyu
    Mutoro, Eva
    Biegalski, Michael D.
    Christen, Hans M.
    Shao-Horn, Yang
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2012, 159 (07) : F219 - F225
  • [28] The Chemical Evolution of the La0.6Sr0.4CoO3-δ Surface Under SOFC Operating Conditions and Its Implications for Electrochemical Oxygen Exchange Activity
    Opitz, Alexander K.
    Rameshan, Christoph
    Kubicek, Markus
    Rupp, Ghislain M.
    Nenning, Andreas
    Goetsch, Thomas
    Blume, Raoul
    Haevecker, Michael
    Knop-Gericke, Axel
    Rupprechter, Guenther
    Kloetzer, Bernhard
    Fleig, Juergen
    TOPICS IN CATALYSIS, 2018, 61 (20) : 2129 - 2141
  • [29] Flame spray deposition of La0.6Sr0.4CoO3-δ thin films: Microstructural characterization, electrochemical performance and degradation
    Karageorgakis, Nikolaos. I.
    Heel, Andre
    Bieberle-Huetter, Anja
    Rupp, Jennifer L. M.
    Graule, Thomas
    Gauckler, Ludwig J.
    JOURNAL OF POWER SOURCES, 2010, 195 (24) : 8152 - 8161
  • [30] Enhancement of oxygen permeation by La0.6Sr0.4CoO3-δ coating in La0.7Sr0.3Ga0.6Fe0.4O3-δ membrane
    Lee, KS
    Lee, S
    Kim, JW
    Woo, SK
    DESALINATION, 2002, 147 (1-3) : 439 - 444
12345