Ionic conductivity of Gd- and Y-doped ceria-zirconia solid solutions

被引：0
|
作者：
Ruehrup, Vera [1 ]
Wiemhoefer, Hans-Dieter [1 ]
机构：
[1] Univ Munster, Inst Inorgan & Analyt Chem, D-48149 Munster, Germany
来源：
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES | 2006年 / 61卷 / 07期
关键词：
ceria; zirconia; lattice parameter; ionic conductivity; impedance;
D O I：
暂无
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The total conductivity of the solid solutions (Ce1-xZrx)(0.8)Gd0.2O1.9 and (Ce1-xZrx)(0.8)Y0.2O1.9 was measured in air as a function of temperature (T = 300 degrees C - 600 degrees C) and composition (x = 0.0-0.9). A deep minimum of the bulk ionic conductivity was found for equal fractions of ceria and zirconia. It indicates enhanced defect association and ordering of the oxygen vacancies around x = 0.5. X-ray analysis (Guinier technique) showed the diffraction pattern of the cubic fluorite structure for all investigated compositions 0 < x < 1. The lattice parameter decreased linearly with increasing zirconia content x.
引用
收藏
页码：916 / 922
页数：7
相关论文
共 50 条
  • [1] Enhanced CO and Soot Oxidation Activity Over Y-Doped Ceria-Zirconia and Ceria-Lanthana Solid Solutions
    Devaiah, D.
    Tsuzuki, T.
    Aniz, C. U.
    Reddy, B. M.
    CATALYSIS LETTERS, 2015, 145 (05) : 1206 - 1216
  • [2] Solid solution formation, densification and ionic conductivity of Gd- and Sm-doped ceria
    Reis, S. L.
    Souza, E. C. C.
    Muccillo, E. N. S.
    SOLID STATE IONICS, 2011, 192 (01) : 172 - 175
  • [3] Electrical conductivity and stability of Gd-doped ceria/Y-doped zirconia ceramics and thin films
    Zhou, XD
    Scarfino, B
    Anderson, HU
    SOLID STATE IONICS, 2004, 175 (1-4) : 19 - 22
  • [4] Microstructure and transport properties of Y-doped zirconia and Gd-doped ceria
    Petot-Ervas, G
    Petot, C
    Zientara, D
    Kusinski, J
    MATERIALS CHEMISTRY AND PHYSICS, 2003, 81 (2-3) : 305 - 307
  • [5] Role of the microstructure on the transport properties of Y-doped zirconia and Gd-doped ceria
    Petot-Ervas, G
    Petot, C
    Raulot, JM
    Kusinski, J
    Sproule, I
    Graham, M
    IONICS, 2003, 9 (3-4) : 195 - 201
  • [6] Microstructure, nanochemistry and transport properties of Y-doped zirconia and Gd-doped ceria
    Petot-Ervas, G
    Petot, C
    Raulot, JM
    Kusinski, J
    Sproule, I
    Graham, M
    SOLID STATE IONICS-2002, 2003, 756 : 521 - 526
  • [7] Role of the microstructure on the transport properties of Y-doped zirconia and Gd-doped ceria
    G. Petot-Ervas
    C. Petot
    J. M. Raulot
    J. Kusinski
    I. Sproule
    M. Graham
    Ionics, 2003, 9 : 195 - 201
  • [8] Enhanced CO and Soot Oxidation Activity Over Y-Doped Ceria–Zirconia and Ceria–Lanthana Solid Solutions
    D. Devaiah
    T. Tsuzuki
    C. U. Aniz
    B. M. Reddy
    Catalysis Letters, 2015, 145 : 1206 - 1216
  • [9] Structural determination of ceria-zirconia nanosystem doped by Gd
    Kolka, V. P.
    Kriventsov, V. V.
    Kochubey, D. I.
    Zyuzin, D. A.
    Moroz, E. M.
    Sadykov, V. A.
    Kosmambetova, G. R.
    Strizhak, P. Y.
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2007, 575 (1-2): : 91 - 95
  • [10] Strain effects on the ionic conductivity of Y-doped ceria: A simulation study
    Burbano, Mario
    Marrocchelli, Dario
    Watson, Graeme W.
    JOURNAL OF ELECTROCERAMICS, 2014, 32 (01) : 28 - 36
12345