Reversible changes in the redox behaviour of a Ce0.68Zr0.32O2 mixed oxide:: effect of alternating the re-oxidation temperature after reduction at 1223 K

被引:63
作者
Baker, RT
Bernal, S
Blanco, G
Cordón, AM
Pintado, JM
Rodríguez-Izquierdo, JM
Fally, F
Perrichon, V
机构
[1] Univ Cadiz, Fac Ciencias, Dept Ciencia Mat Ingn Met & Quim Inorgan, Cadiz, Spain
[2] Univ Lyon 1, LACE, CNRS, UMR 5634, F-69622 Villeurbanne, France
关键词
D O I
10.1039/a808203k
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The redox behaviour of a Ce0.68Zr0.32O2 mixed oxide is reversibly modified by alternating high temperature (1223 K) reduction with either mild (823 K) or high temperature (1223 K) re-oxidation treatments.
引用
收藏
页码:149 / 150
页数:2
相关论文
共 14 条
  • [1] AN UNUSUAL PROMOTION OF THE REDOX BEHAVIOR OF CEO2-ZRO2 SOLID-SOLUTIONS UPON SINTERING AT HIGH-TEMPERATURES
    BALDUCCI, G
    FORNASIERO, P
    DIMONTE, R
    KASPAR, J
    MERIANI, S
    GRAZIANI, M
    [J]. CATALYSIS LETTERS, 1995, 33 (1-2) : 193 - 200
  • [2] REVERSIBILITY OF HYDROGEN CHEMISORPTION ON A CERIA-SUPPORTED RHODIUM CATALYST
    BERNAL, S
    CALVINO, JJ
    CIFREDO, GA
    RODRIGUEZIZQUIERDO, JM
    PERRICHON, V
    LAACHIR, A
    [J]. JOURNAL OF CATALYSIS, 1992, 137 (01) : 1 - 11
  • [3] INFLUENCE OF THE REDUCTION EVACUATION CONDITIONS ON THE RATE OF HYDROGEN SPILLOVER ON RH/CEO2 CATALYSTS
    BERNAL, S
    CALVINO, JJ
    CIFREDO, GA
    LAACHIR, A
    PERRICHON, V
    HERRMANN, JM
    [J]. LANGMUIR, 1994, 10 (03) : 717 - 722
  • [4] CUIF JP, 1996, 961906 SAE
  • [5] CUIF JP, 1997, 970463 SOC AUT ENG
  • [6] Modification of the redox behaviour of CeO2 induced by structural doping with ZrO2
    Fornasiero, P
    Balducci, G
    DiMonte, R
    Kaspar, J
    Sergo, V
    Gubitosa, G
    Ferrero, A
    Graziani, M
    [J]. JOURNAL OF CATALYSIS, 1996, 164 (01) : 173 - 183
  • [7] RH-LOADED CEO2-ZRO2 SOLID-SOLUTIONS AS HIGHLY EFFICIENT OXYGEN EXCHANGERS - DEPENDENCE OF THE REDUCTION BEHAVIOR AND THE OXYGEN STORAGE CAPACITY ON THE STRUCTURAL-PROPERTIES
    FORNASIERO, P
    DIMONTE, R
    RAO, GR
    KASPAR, J
    MERIANI, S
    TROVARELLI, A
    GRAZIANI, M
    [J]. JOURNAL OF CATALYSIS, 1995, 151 (01) : 168 - 177
  • [8] REDUCTION OF CEO2 BY HYDROGEN - MAGNETIC-SUSCEPTIBILITY AND FOURIER-TRANSFORM INFRARED, ULTRAVIOLET AND X-RAY PHOTOELECTRON-SPECTROSCOPY MEASUREMENTS
    LAACHIR, A
    PERRICHON, V
    BADRI, A
    LAMOTTE, J
    CATHERINE, E
    LAVALLEY, JC
    ELFALLAH, J
    HILAIRE, L
    LENORMAND, F
    QUEMERE, E
    SAUVION, GN
    TOURET, O
    [J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1991, 87 (10): : 1601 - 1609
  • [9] Oxygen evolution properties of CeO2-ZrO2 powders as automotive exhaust sub-catalysts and the phase diagrams
    OtsukaYao, S
    Morikawa, H
    Izu, N
    Okuda, K
    [J]. JOURNAL OF THE JAPAN INSTITUTE OF METALS, 1995, 59 (12) : 1237 - 1246
  • [10] THE APPLICATION OF CE-ZR OXIDE SOLID-SOLUTION TO OXYGEN STORAGE PROMOTERS IN AUTOMOTIVE CATALYSTS
    OZAWA, M
    KIMURA, M
    ISOGAI, A
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 1993, 193 (1-2) : 73 - 75