REDUCTION OF 2-COMPONENT CUO-CR2O3 MIXED OXIDES AND THEIR CATALYTIC ACTIVITY

被引:5
|
作者
MUCKA, V
机构
关键词
D O I
10.1139/v92-239
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The reduction with hydrogen of the two-component mixed oxides CuO-Cr2O3 containing various amounts of both components in the whole range from 0 to 100% was studied, as well as some physico-chemical and catalytic properties. The hydrogen peroxide decomposition served as a test catalytic reaction. A significant effect of the reduction on the rate constant of the test reaction was found, as well as on the value of its apparent activation energy. Pronounced changes were observed, especially in the border ranges of the composition. This fact may be connected with the mutual influence of both components in the catalyst.
引用
收藏
页码:1914 / 1916
页数:3
相关论文
共 50 条
  • [41] A KINETIC-STUDY ON HYDROGEN REDUCTION OF CUO AND CUCR2O4 IN THE CR2O3.CUO TYPE OXIDE SYSTEMS .1. CUO PHASE REDUCTION
    STEFANESCU, M
    SASCA, V
    REVISTA DE CHIMIE, 1994, 45 (09): : 786 - 790
  • [42] Methane catalytic combustion over CeO2-ZrO2-Sc2O3 mixed oxides
    Toscani, Lucia M.
    Curyk, Pablo A.
    Genoveva Zimicz, M.
    Halac, Emilia B.
    Saleta, Martin. E.
    Lamas, Diego G.
    Larrondo, Susana A.
    APPLIED CATALYSIS A-GENERAL, 2019, 587
  • [43] Investigation on catalytic activity of CuO/La2O3, CuO/Gd2O3 and CuO/La2O3/Gd2O3 nanocatalysts prepared via novel two step approach
    Sankaran, A.
    Kumaraguru, K.
    Balraj, B.
    Sridevi, A.
    Magesh, R.
    MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2021, 263
  • [44] CUO-ZNO-AL2O3 MIXED OXIDES - PREPARATION, BULK AND SURFACE CHARACTERIZATION
    PORTA, P
    CAMPA, MC
    FIERRO, G
    LOJACONO, M
    MINELLI, G
    MORETTI, G
    STOPPA, L
    JOURNAL OF MATERIALS CHEMISTRY, 1993, 3 (05) : 505 - 511
  • [45] Regeneration of Catalytic Activity of CuO-Cu2O/In2O3 Nanocomposite towards Electrochemical Reduction of CO2 by UV Light Treatment
    Devi, Pinki
    Singh, Arunima
    Malik, Karan
    Verma, Anil
    Bhattacharya, Saswata
    Singh, Jitendra Pratap
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2021, 168 (06)
  • [46] Investigating the effects of synthesis parameter on textural and catalytic properties of ZnO - CuO - Al 2 O 3-Cr 2 O 3 mixed oxide in water gas shift reaction
    Moeini, Talaat
    Meshkani, Fereshteh
    MATERIALS CHEMISTRY AND PHYSICS, 2024, 322
  • [47] TIME EVOLUTION IN A 2-COMPONENT SYSTEM WITH CATALYTIC REACTIONS
    KREUZER, HJ
    KURIHARA, Y
    PHYSICA A, 1977, 87 (01): : 94 - 116
  • [48] Nanosized CeO2–Gd2O3 Mixed Oxides: Study of Structural Characterization and Catalytic CO Oxidation Activity
    D. Naga Durgasri
    T. Vinodkumar
    Putla Sudarsanam
    Benjaram M. Reddy
    Catalysis Letters, 2014, 144 : 971 - 979
  • [49] PHYSICOCHEMICAL AND CATALYTIC PROPERTIES OF THE SYSTEM ME2O3-CUO-0.5CR2O3, DEPOSITED ON ALUMINUM MAGNESIUM SPINEL
    KOMAROV, VS
    VARLAMOV, VI
    TABULINA, LV
    JOURNAL OF APPLIED CHEMISTRY OF THE USSR, 1980, 53 (09): : 1561 - 1564
  • [50] CATALYTIC ACTIVITY OF AL2O3-CR2O3-FE2O3 SYSTEM .1. PHYSICOCHEMICAL PROPERTIES
    KRZYWICKI, A
    MALINOWSKI, S
    MARCZEWSKI, M
    REACTION KINETICS AND CATALYSIS LETTERS, 1976, 5 (02): : 79 - 84