X-ray absorption and diffraction studies of La0.6Ca0.4CoO3 perovskite, a catalyst for bifunctional oxygen electrodes

被引：37
|
作者：
Haas, O [1 ]
Holzer, F
Müller, S
McBreen, JM
Yang, XQ
Sun, X
Balasubramanian, M
机构：
[1] Paul Scherrer Inst, CH-5232 Villigen, Switzerland
[2] Brookhaven Natl Lab, Dept Mat Sci, Upton, NY 11973 USA
来源：
ELECTROCHIMICA ACTA | 2002年 / 47卷 / 19期
关键词：
bifunctional oxygen electrodes; zn/air cells; La0.6Ca0.4CoO3; perovskite; in-situ X-ray absorption; X-ray diffraction;
D O I：
10.1016/S0013-4686(02)00241-4
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The chemical stability of La0.6Ca0.4CoO3 perovskite as an electrocatalyst in bifunctional oxygen electrodes has been studied by exsitu and in-situ X-ray absorption spectroscopy and X-ray diffraction measurements. The catalyst was investigated ex-situ as a powder mixed with BN, and in-situ on carbon supports in bilayer air electrodes at different potentials in an electrochemical cell with an alkaline electrolyte. It was found to be stable for at least 1300 h in electrodes operated under the conditions of rechargeable Zn/air cells. Published by Elsevier Science Ltd.
引用
收藏
页码：3211 / 3217
页数：7
相关论文
共 50 条
  • [41] Divalent manganese in A -position of perovskite cell: X-ray absorption finite structure study of La0.6Sr0.4-xMnTi xO3 manganites
    Ulyanov, A.N.
    Yang, D.S.
    Chau, N.
    Yu, S.C.
    Yoo, S.I.
    Journal of Applied Physics, 2008, 103 (07):
  • [42] 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
  • [43] Relation between oxygen stoichiometry and thermodynamic properties and the electronic structure of nonstoichiometric perovskite La0.6Sr0.4CoO3-δ
    Bychkov, S. F.
    Sokolov, A. G.
    Popov, M. P.
    Nemudry, A. P.
    PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2016, 18 (42) : 29543 - 29548
  • [44] X-RAY PHOTOELECTRON-SPECTRA OF PEROVSKITE-TYPE COBALT OXIDES LA1-XSRXCOO3-Y (X=0.4, 0.6)
    BOCQUET, AE
    CHALKER, P
    DOBSON, JF
    HEALY, PC
    MYHRA, S
    THOMPSON, JG
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1989, 160 (3-4): : 252 - 258
  • [45] Effect of oxygen vacancies on the magnetic structure of the La0.6Sr0.4FeO3-δ perovskite:: A neutron diffraction study
    Chu, Z
    Yelon, WB
    Yang, JB
    James, WJ
    Anderson, HA
    Xie, Y
    Malik, SK
    JOURNAL OF APPLIED PHYSICS, 2002, 91 (10) : 7938 - 7940
  • [46] Influence of spin-coating speed on the morphology, surface chemistry and electrochemical performance stability of liquid precursor derived La0.6Ca0.4CoO3 electrode films
    Sezer, Mehmet
    Ahsen, Ali Sems
    Buyukaksoy, Aliguel
    MATERIALS RESEARCH BULLETIN, 2024, 180
  • [47] X-ray diffraction, magnetic and magnetocaloric properties of La0.6Ca0.4Mn1-xFexO3 (0 ≤ x ≤ 0.3) manganites prepared by the sol-gel method
    Nasri, Abir
    Zouari, S.
    Ellouze, M.
    Hlil, E. K.
    Elhalouani, F.
    EUROPEAN PHYSICAL JOURNAL PLUS, 2014, 129 (08):
  • [48] Operando X-Ray Diffraction Analysis of a Microtubular La0.6Sr0.4Co0.2Fe0.8O3-δ Membrane
    Voloshin, B. V.
    Bulina, N., V
    Popov, M. P.
    Nemudry, A. P.
    RUSSIAN JOURNAL OF ELECTROCHEMISTRY, 2022, 58 (02) : 100 - 104
  • [49] Operando X-Ray Diffraction Analysis of a Microtubular La0.6Sr0.4Co0.2Fe0.8O3 – δ Membrane
    B. V. Voloshin
    N. V. Bulina
    M. P. Popov
    A. P. Nemudry
    Russian Journal of Electrochemistry, 2022, 58 : 100 - 104
  • [50] EFFECTS OF B-SITE PARTIAL SUBSTITUTIONS OF PEROVSKITE-TYPE LA0.6SR0.4COO3 ON OXYGEN DESORPTION
    ZHANG, HM
    YAMAZOE, N
    TERAOKA, Y
    JOURNAL OF MATERIALS SCIENCE LETTERS, 1989, 8 (09) : 995 - 996
12345